Thông tin chi tiết nhất về sản phẩm SINAMICS S120 CM Cabinet Modules > Air-cooled Units > Auxiliary Power Supply Modules của SIEMENS

SINAMICS S120 CM Cabinet Modules Air-cooled Units Auxiliary Power Supply Modules

Tóm tắt chung về dòng sản phẩm SINAMICS S120 CM Cabinet Modules

With air and liquid cooling - A quick and sure way to find the perfect solution

 

General description

A modular cabinet unit solution for high performance applications in industrial mechanical engineering and plant construction is available together with the SINAMICS S120 cabinet modules. The cabinet modules are particularly suited to applications where several drives must work together coordinated. The drive system is thereby normally made up of several motor modules which are connected to the common DC link. 

The Motor Modules are in turn powered by a central Line Module. 
This kind of configuration allows an interchange of energy between the individual drives, as well as offering a compact and cost-effective design. By this, the power supply is relieved. It is often possible to use Line Modules with a lower rated power than the total power of the connected Motor Modules. This in turn reduces space and expenditure. The SINAMICS S120 cabinet modules also allow to build up single motor drives with greater power outputs. E.g. a 4.5 MW drive with 24-pulse-input can be realized by connecting several Line and Motor Modules.

SINAMICS S120 CM Cabinet Modules



SINAMICS S120 CM Cabinet Modules liquid cooled
 

Technical data overview

The SINAMICS S120 cabinet modules system can be supplied for line voltages between 3 AC 380 V - 3 AC 690 V.
The cabinet units offer protection ranging from IP20 to IP54; liquid cooling: up to IP55.
Cooling methods: air and liquid cooling

The following cabinet modules are available at present:

Brief overview - Air cooling

Model	Function	Power range
Motor Modules	Inverter for the connected motors	380 - 480 V: 4.8 kW - 800 kW / 3000 kW *)  500 - 690 V: 75 kW - 1200 kW / 4500 kW *)
Basic Line Modules	6 pulse unregulated supply unit to feed the connected motor modules	380 - 480 V: 200 kW - 900 kW / 3500 kW *)  500 - 690 V: 250 kW - 1500 kW / 5800 kW *)
Smart Line Modules	6 pulse regulated supply / regenerative feedback unit to feed the connected motor modules	380 - 480 V: 250 kW - 800 kW 500 - 690 V: 450 kW - 1400 kW
Active Line Modules	6 pulse regulated supply / regenerative feedback unit incl. clean power filter to feed the connected motor modules	380 - 480 V: 132 kW - 900 kW / 3500 kW *)  500 - 690 V: 560 kW - 1400 kW / 5400 kW *)
Braking Modules	Central brake chopper as cost effective alternative to the regenerative line modules when regenerative operation occurs	380 - 480 V: 500 kW, 1000 kW 500 - 600 V: 550 kW, 1100 kW 660 - 690 V: 630 kW, 1200 kW 200 kW Braking modules can be supplied as optional components for the motor modules
Line Connection Modules	Power connection module with components attached to the mains, such as load disconnectors i. e. circuit breakers	380 - 480 V: 250 A - 3200 A  500 - 690 V: 280 A - 3200 A
*) Power during parallel connection

Brief overview - Liquid cooling

Model	Function	Power range
Motor Modules	Inverter for the connected motors	380 - 480 V: 110 kW - 800 kW / 3040 kW *)  500 - 690 V: 90 kW - 1500 kW / 5700 kW *)
Basic Line Connection Modules	6 pulse unregulated supply unit to feed the connected motor modules	380 - 480 V: 360 kW - 830 kW / 3070 kW *)  500 - 690 V: 355 kW - 1370 kW / 5070 kW *)
Active Line Connection Modules	6 pulse regulated supply / regenerative feedback unit incl. clean power filter to feed the connected motor modules	380 - 480 V: 380 kW - 900 kW / 3420 kW *)  500 - 690 V: 800 kW - 1700 kW / 6460 kW *)
Heat Exchanger Modules	This is used to dissipate the power loss from the liquid-cooled converter. It basically consists of pumps, closed-loop control and a heat exchanger, which means that the inner and outer water cooling circuits are separated from one another.	400 V / 690 V: 32, 48, 72 und 110 kW Cooling power
*) Power during parallel connection

Further product definitions are in preparation.

Safety functions

Basic Functions: STO, SS1, SBC,
Extended Functions: SLS, SDI, SSM, SLP,SP, SBT, SOS, SS2 (you will find detailed information in the catalog D21.3)

•  Integrated safety functions with drives

 

Customer benefits

The SINAMICS S120 Cabinet Modules system comprises several individual modules that are perfectly harmonized with one another. Standardized interfaces for the power and communication connections mean that the individual cabinet modules can be combined as required. This allows the user to configure the optimal drive for his application. Not only this, but an extensive range of options allows plant-specific requirements to be very flexibly fulfilled. An extremely compact design and the possibility of pre-configuring the drive system in the plant saves space and minimizes the time and costs associated with installation and commissioning on-site. 

Of course, it goes without saying that the cabinet modules also offer the advantages of the SINAMICS S120 Drive System:

- A higher degree of flexibility is achieved by separating the control module and power section.

- Up to 4 vector drives can be connected to one control module. In addition to a safe and cost-saving design, it also allows information to be directly exchanged between the individual drives - therefore relieving the higher-level fieldbus.

- DRIVE-CLiQ, the new interface inside the drive, allows fast and reliable communications between the essential SINAMICS S120 drive components including motors and encoders.

- The PROFIBUS or PROFINET interface integrated as standard allows the SINAMICS S120 Cabinet Modules to be connected to higher-level automation systems such as SIMATIC or SIMOTION.

- The standard and integrated SIZER and STARTER tools provide valuable support when engineering the drive, commissioning it and troubleshooting (diagnostics).

 

Cooling concept

In addition to air cooling, SINAMICS S120 Cabinet Modules are now also available with an innovative liquid-cooled concept.
Liquid cooling facilitates a significantly more efficient heat dissipation, so that it is not necessary to control the climate of rooms. High levels of energy can be saved as a result of the low energy consumption associated with the liquid cooling. In addition to the energy savings as a result of efficient cooling concept, heat can also be recovered. The cooling water that is heated up as part of the cooling process can be used as a source of heat for the process or for heating.

The advantages of liquid cooling for high power ratings when compared to air cooling are the smaller mounting footprint, lower weight and quiet converter operation. It is predestined for applications where space is restricted or poorly ventilated and in harsh environmental conditions, for example onboard ships, in mining and in the industrial environment as a whole.

Configuring a redundant cooling system by using two pumps in the Heat Exchanger Modules is far more cost effective and can be implemented with lower costs when compared to a redundantly configured climate control system. The maintenance work for the units is less as there are no filter mats to replace.
 

Typical applications

The modular drive system SINAMICS S120 cabinet modules are particularly suitable for drive tasks where several motors work together. Some typical examples of this are:

- Belt conveyors, cranes, ship's drives, test stands, cross cutters, roll changers, roller feeds

- Winders / unwinders, leadind / following drives, calenders, mechanical presses, rolling mill drives

- Branch Chemical Industry
 

The ideal sector solution

- SINAMICS S120 CM air cooled
for industrial applications

- SINAMICS S120 CM liquid cooled
for industrial applications specially involving drives in harsh environmental conditions, for instance in the process industry, automotive industry, test stands as well as mining

- SINAMICS S120 CM Application Marine Drive
for marine applications with the certificates for the relevant marine classification societies (e.g. DNV-GL, ABS, LR, BV, CCS).

- SINAMICS S120 CM Application Shaft Generator Drive
for the onboard ship supply using shaft-mounted generators and for supplying stand-alone systems (island operation)

 

Chi tiết chung về dòng sản phẩm SINAMICS S120 CM Cabinet Modules

 

Overview

SINAMICS S120 Cabinet Modules, air-cooled and liquid-cooled

SINAMICS S120 Cabinet Modules are the components of a modular cabinet system for multi-motor drives with a central supply infeed and a common DC link busbar, as used, for example, in the process industry, automotive industry, metal processing industry as well as in the crane and mining domains. They are available in air-cooled or liquid-cooled versions. As standard, they are installed side by side in a row. Other installation types (e.g. back to back) are possible on request. SINAMICS S120 Cabinet Modules include the chassis units from the SINAMICS S120 series in booksize format (Motor Modules) and chassis format, thus making the range an ideal supplement to the SINAMICS G150 and SINAMICS S150 cabinet converter series for single-motor drives.

All drive components, from the supply infeed to the motor-side inverters, are configured in a clear, compact layout in the individual Cabinet Modules. They can be flexibly combined and optimally adapted to customer-specific requirements thanks to a comprehensive array of options.

The main components of the air-cooled system are as follows:

- Line Connection Modules with line-side components such as contactors, fuses and circuit breakers, as well as line reactors for Basic Line Modules

- The following types of infeed Line Modules:
  + Basic Line Modules for two-quadrant operation
  + Smart Line Modules for four-quadrant operation
  + Active Line Modules for four-quadrant operation with negligible line harmonics

- Central Braking Modules for braking operation

- The following types of Motor Modules:
  + Booksize Cabinet Kit
  + Chassis

- Control Units

- Auxiliary Power Supply Modules to supply the auxiliary power supply system

The main components of the liquid-cooled system are as follows:

- Active Line Connection Modules as a combination of Line Connection Module and Active Line Module with an Active Interface Module
- Basic Line Connection Modules as a combination of a Line Connection Module and a Basic Line Module
- Motor Modules
- Control Units
- Heat Exchanger Modules with pumps, closed-loop control and a heat exchanger between the deionized water and raw water circuits

Standardized interfaces for both the power and the control connections facilitate engineering and installation. Communication between the power modules and the central Control Unit takes place via DRIVE‑CLiQ, the internal drive serial interface.

Example of a drive line-up with SINAMICS S120 Cabinet Modules for a multi-motor drive

The following tables provide an overview of the voltage ranges and power ratings of the available SINAMICS S120 Cabinet Modules.

Voltage ranges and powers for air-cooled SINAMICS S120 Cabinet Modules

	Line voltage	Input current	DC link voltage	DC link current	Output current	Power range of single modules
Line Connection Modules 1)	380 ... 480 V 3 AC	250 ... 3200 A	–	–	–	–
	500 ... 690 V 3 AC	280 ... 3200 A	–	–	–	–
Basic Line Modules 1)	380 ... 480 V 3 AC	365 ... 1630 A	510 ... 650 V	420 ... 1880 A	–	200 ... 900 kW
	500 ... 690 V 3 AC	260 ... 1580 A	675 ... 930 V	300 ... 1880 A	–	250 ... 1500 kW
Smart Line Modules 1)	380 ... 480 V 3 AC	463 ... 1430 A	510 ... 650 V	550 ... 1700 A	–	250 ... 800 kW
	500 ... 690 V 3 AC	463 ... 1430 A	675 ... 930 V	550 ... 1700 A	–	450 ... 1400 kW
Active Line Modules 1)	380 ... 480 V 3 AC	210 ... 1405 A	540 ... 720 V	235 … 1574 A	–	132 ... 900 kW
	500 ... 690 V 3 AC	575 ... 1270 A	710 ... 1035 V	644 ... 1422 A	–	560 ... 1400 kW
Motor Modules booksize	380 ... 480 V 3 AC	–	510 ... 720 V	–	9 ... 132 A	4.8 ... 71 kW
Motor Modules chassis 1)	380 ... 480 V 3 AC	–	510 ... 720 V	–	210 ... 1405 A	110 ... 800 kW
	500 ... 690 V 3 AC	–	675 ... 1035 V	–	85 ... 1270 A	75 ... 1200 kW
Central Braking Modules 1)	380 ... 480 V 3 AC	–	510 ... 720 V	–	–	500 ... 1000 kW
	500 … 600 V 3 AC	–	675 ... 900 V	–	–	550 ... 1100 kW
	660 … 690 V 3 AC	–	890 ... 1035 V	–	–	630 ... 1200 kW
Auxiliary Power Supply Modules	380 ... 690 V 3 AC	125 ... 250 A	–	–	–	–

 

¹⁾ The power can be increased by connecting up to four identical modules in parallel.

Voltage ranges and power ratings for liquid-cooled SINAMICS S120 Cabinet Modules

	Line voltage	Input current	DC link voltage	DC link current	Output current	Power range of single modules
Basic Line Connection Modules 1)	380 ... 480 V 3 AC	610 ... 1420 A	510 ... 650 V	740 ... 1730 A	–	360 ... 830 kW
	500 ... 690 V 3 AC	340 ... 1350 A	675 ... 930 V	420 ... 1650 A	–	355 ... 1370 kW
Active Line Connection Modules 1)	380 ... 480 V 3 AC	985 ... 1405 A	540 ... 720 V	1100 ... 1573 A	–	630 ... 900 kW
	500 ... 690 V 3 AC	1025 ... 1560 A	710 ... 1035 V	1147 ... 1740 A	–	1100 ... 1700 kW
Motor Modules 1)	380 ... 480 V 3 AC	–	510 ... 720 V	–	605 ... 1405 A	315 ... 800 kW
	500 ... 690 V 3 AC	–	675 ... 1035 V	–	465 ... 1560 A	450 ... 1500 kW

 

¹⁾ The power can be increased by connecting up to four identical modules in parallel.

 

Benefits

The outstanding system features of the SINAMICS S120 Cabinet Modules provide the following advantages:

- Process optimization with minimum outlay  + A standard PROFIBUS or PROFINET interface and various analog and digital interfaces enables easy integration into automation solutions

  + Vector and servo control ensures that they fulfill the most exacting requirements regarding the accuracy and dynamic response of drives.

- High level of reliability and availability  + Individual modules and power components can be replaced quickly and easily, which ensures a higher level of plant availability

- Energy saving during operation
  + The motor-side inverters are coupled via the common DC link and allow energy to be exchanged between motors that are motoring and generating. This means that energy is saved, there is less load on the supply infeed and line harmonics are reduced

  + Generally the line infeed is only dimensioned for the maximum energy required when motoring or the maximum current required when motoring – and not the sum of the energy requirements of the Motor Modules connected to the DC link. As a consequence, for example, for conveyor belts or motor test stands with Motor Modules that are simultaneously operated in motoring and generating modes, a significantly smaller line infeed unit can be selected.

- Minimal operative, maintenance, and servicing costs
  + Simple commissioning thanks to the menu-driven STARTER commissioning tool.
  + Optional, menu-navigated AOP30 advanced operator panel with plain text display and bar-type display.
  + All modules are easily accessible, making them extremely service friendly

- Space-saving design
- Environmentally-friendly operation  + The converters are exceptionally quiet and compact thanks to state-of-the-art IGBT power semiconductors and an innovative cooling concept
 

Application

SINAMICS S120 Cabinet Modules have been specially developed to allow simple configuration of multi-motor systems. They are used for applications where several motors must be coordinated to realize a drive task as multi-motor drives in a drive line-up. Examples of such applications include:

- Packaging machines
- Plastics processing machines
- Textile machines
- Presses and punches
- Rolling mill drives
- Hoists and cranes
- Printing and paper machines
- Vehicle and gearbox test stands
- Test stand applications
- Machines used in the woodworking, glass and ceramics industries
- Handling and assembly systems
- Machine tools

High-power single drives (parallel connection) can also be implemented with Cabinet Modules.

 

Design

They have been designed according to the zone concept principle and therefore offer the highest possible level of operational reliability. EMC measures have been rigorously implemented. With the help of simulated conditions, partitions have been designed to act as air guides and heat dissipation units.

Special measures used in the construction of the cabinets ensure that they remain mechanically durable over their entire life cycle.

Attention has been paid to providing a wide range of cable routing options and special design concepts are applied consistently to broaden the scope of application and simplify service. The units have all the necessary connections and connecting elements. Thanks to their carefully considered configuration concept, cabinets are shipped in a ready-to-connect state or, in the case of multiple transport units, have been prepared for quick assembly. An extensive spectrum of options designed to adapt the units to a variety of different applications facilitates the selection process.

All components, from individual parts to the ready-to-connect cabinet, undergo rigorous testing throughout the entire production process. This guarantees a high level of functional reliability during installation and commissioning, as well as in operation.

Replaceable components have been designed so that they can be quickly and easily replaced. In addition, the "Spares On Web" Internet tool makes it easy to view the spare parts that are available for the particular order at all times ¹⁾.

¹⁾ The properties of the SINAMICS S120 Cabinet Modules described in this catalog are not transferable to cabinet units constructed to meet the requirements of specific applications.
 

System design

Line Modules are coupled with the various Motor Modules by means of prefabricated busbar sets with different current carrying capacities.

All standard busbars, as well as electronics components, are protected against environmental influences. This is achieved through the use of nickel-plated copper bars and painted modules throughout.

A special, standard auxiliary power supply system supplies the individual Cabinet Modules with the required auxiliary voltages for the power components, fans and 24 V loads.

These voltages are preferably generated using an auxiliary power supply module. Additional supply possibilities are available using the K76 option (auxiliary power supply generation in the Line Connection Module) or using an external supply in the auxiliary power supply system.

The auxiliary power supply system comprises an auxiliary power supply module with two terminal blocks (air cooling) and one auxiliary voltage terminal (liquid cooling) and a 24 V DC fuse as well as the required connecting cables. It is supplied completely assembled and ready to operate. Only the cable connections to the adjacent Cabinet Module must be established on-site.

Communication between the Control Unit, power units and other active SINAMICS components is realized via DRIVE‑CLiQ connections.

DRIVE‑CLiQ is an internal serial interface of the drive that enables fast and easy configuration of the complete drive line-up with prefabricated cables in varying lengths.

The Cabinet Modules can be optionally supplied in pre-configured transport units up to a total length of 2400 mm. This option is particularly recommended in air-cooled Cabinet Modules for Line Modules together with Line Connection Modules since, in this case, the Line Connection Module must be equipped with a pre-charging DC link or line reactors (depending on the type of Line Module), in addition to the electrical interface (busbar). For liquid-cooled Cabinet Modules, delivery in transport units has the advantage that the tube system of the cooling system can be implemented completely without couplings. Transport units thus enable the various devices to be quickly and easily assembled on-site.
 

Coated modules

The following devices are equipped with coated modules as standard:

- Booksize format units
- Chassis format units
- Control Units
- Sensor Modules
- Terminal Modules
- Advanced Operator Panel (AOP30)

The coating on the modules protects the sensitive SMD components against corrosive gases, chemically active dust and moisture.
 

Nickel-plated busbars

All of the copper busbars used in the converter cabinets are nickel-plated to achieve the best possible immunity to environmental effects. Furthermore, there is no need to clean the contacts on the customer terminals as otherwise required for bare copper connections.

Note:

With some options, parts of the copper busbars cannot be nickel-plated for technical reasons.
 

PE bars

The Cabinet Modules are delivered with a PE bar as standard. It is used to connect and fasten PE conductors.
 

Degrees of protection of Cabinet Modules

The EN 60529 standard covers the protection of electrical equipment by means of housings, covers or equivalent, and includes:

- Protection of persons against accidental contact with live or moving parts within the housing and protection of the equipment against the ingress of solid foreign bodies (touch protection and protection against ingress of solid foreign bodies)
- Protection of the equipment against the ingress of water (water protection)
- Abbreviations for the internationally agreed degrees of protection

The degrees of protection are specified by abbreviations comprising the code letters IP and two digits.

Degree of protection	First code number (touch protection and protection against solid foreign bodies)	Second code number (protection of the equipment against the ingress of water)
IP20 (Standard for air-cooled version)	Protected against solid foreign bodies diameter ≥ 12.5 mm	No water protection
IP21 (Standard for liquid-cooled version, option M21 for air-cooled version)	Protected against solid foreign bodies diameter ≥ 12.5 mm	Protected against drip water Vertically falling water drops shall not have a harmful effect.
IP23 (Option M23)	Protected against solid foreign bodies diameter ≥ 12.5 mm	Protected against spray water Water sprayed on both sides of the vertical at an angle of up to 60° shall not have a harmful effect.
IP43 (Option M43)	Protected against solid foreign bodies diameter ≥ 1 mm	Protected against spray water Water sprayed on both sides of the vertical at an angle of up to 60° shall not have a harmful effect.
IP54 (Air-cooled version only) (Option M54)	Dust protected Ingress of dust is not totally prevented, but dust must not be allowed to enter in such quantities that the functioning or safety of the equipment is impaired. Complete touch protection	Protected against splash water Water splashing onto the enclosure from any direction shall not have a harmful effect.
IP55 (Liquid-cooled version only) (Option M55)	Dust protected Ingress of dust is not totally prevented, but dust must not be allowed to enter in such quantities that the functioning or safety of the equipment is impaired. Complete touch protection	Protected against water jet (nozzle) Water projected by a nozzle against the enclosure from any direction shall not have a harmful effect.

 

Air-cooled Cabinet Modules meet degree of protection IP20, liquid-cooled Cabinet Modules degree of protection IP21, as standard. The other degrees of protection outlined here are available as an option.

 

Function

Communication with higher-level controller and customer terminal block

As the customer interface to the control system, a PROFIBUS interface is available on the CU320-2 DP Control Unit or a PROFINET interface on the CU320-2 PN Control Unit as standard.

In the case of the air-cooled Cabinet Modules, the inputs and outputs available as standard on the customer terminal block -X55, which are easy to access and easy to connect up, can be provided.
In the case of the liquid-cooled Cabinet Modules, the components are directly connected.

For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
 

Open-loop and closed-loop control functions

SINAMICS S120 can use a dynamic, high-precision closed-loop vector control (drive object type VECTOR), or a highly dynamic closed-loop servo control (drive object type SERVO).
 

Software and protective functions

The software functions available as standard are described below:

Software and protective functions	Description
Setpoint input	The setpoint can be specified both internally and externally; internally as a fixed setpoint, motorized potentiometer setpoint or jog setpoint, externally via the communications interface or an analog input. The internal fixed setpoint and the motorized potentiometer setpoint can be switched or adjusted via control commands from any interface.
Motor identification	The automatic motor identification function makes commissioning faster and easier and optimizes closed-loop control of the drive.
Ramp-function generator	A user-friendly ramp-function generator with separately adjustable ramp-up and ramp-down times, together with adjustable rounding times in the lower and upper speed ranges, allows the drive to be smoothly accelerated and braked. This results in a good speed control response and plays its role in reducing the stress on the mechanical system. The down ramp can be parameterized separately for a quick stop.
Vdc max controller	The Vdc max controller automatically prevents overvoltages in the DC link, if the set down ramp is too short, for example. This may also extend the set ramp-down time. Note: This function only makes sense for single-axis applications.
Kinetic buffering (KIP)	For brief line supply failures, the kinetic energy of the rotating drive is used to buffer the DC link and therefore prevents fault trips. The drive converter remains operational as long as the drive can provide regenerative energy as a result of its motion and the DC link voltage does not drop below the shutdown threshold. When the line supply recovers within this time, the drive is again bumplessly accelerated up to its setpoint speed.
Automatic restart	The automatic restart switches the drive on again when the power is restored after a power failure, and ramps up to the current speed setpoint.
Flying restart	The flying restart function allows the converter to be switched to a motor that is still turning. With the voltage sensing capability provided by the optional VSM10, the flying restart time for large induction motors can be significantly reduced because the motor does not need to be de-magnetized.
Technology controller	Using the technology controller (PID controller) function module, level or flow controls and complex tension controls can be implemented, for example. The existing D component can act both on the system deviation well as on the actual value (factory setting). The P, I, and D components are set separately.
Free function blocks	Using the freely programmable function blocks, it is easy to implement logic and arithmetic functions for controlling the SINAMICS drive. The blocks can be programmed at the operator panel or the STARTER commissioning tool.
Drive Control Chart (DCC)	Drive Control Chart (DCC) is an additional tool for the easy configuration of technological functions for SINAMICS. The block library contains a large selection of control, arithmetic and logic blocks as well as extensive open-loop and closed-loop control functions. The user-friendly DCC editor enables easy graphics-based configuration, allows control loop structures to be clearly represented and provides a high degree of reusability of charts that have already been created. DCC is an add-on for the STARTER commissioning tool (→ Tools and Engineering).
I2t sensing for motor protection	A motor model stored in the converter software calculates the motor temperature based on the current speed and load. More exact measurement of the temperature, which also takes into account the influence of the ambient temperature, is possible by means of direct temperature measurement using KTY84 sensors in the motor winding.
Motor temperature evaluation	Motor protection by evaluating a KTY84, PTC or Pt100 temperature sensor. When a KTY84 temperature sensor is connected, the limit values can be set for alarm or shutdown. When a PTC thermistor is connected, the system reaction to triggering of the thermistor (alarm or trip) can be defined.
Motor blocking protection	A blocked motor is detected and protected against thermal overloading by a fault trip.
Brake control	“Simple brake control” for controlling holding brakes:  The holding brake is used to secure drives against unwanted motion when deactivated. The "extended braking control" function module allows complex braking control, for example, for motor holding brakes and operational brakes.  In the case of brakes with feedback signal, the brake control reacts to the feedback contacts of the brake.
Write protection	Write protection to prevent unintentional changing of the setting parameters (without password function).
Know-how protection	Know‑how protection for encrypting stored data, e.g. to protect expert configuring knowledge, and to protect against modification and duplication (with password function).
Web server	The integrated web server provides information about the drive unit via its web pages. The web server is accessed using a web browser via unsecured (http) or secured transfer protocol (https).

 

Power unit protection

Power unit protection	Description
Ground fault monitoring at the output	A ground fault at the output is detected by a total current monitor and results in shutdown in grounded systems.
Electronic short-circuit protection at the output	A short-circuit at the output (e.g. at the converter output terminals, in the motor cable or in the motor terminal box) is detected and the converter shuts down with a "fault".
Thermal overload protection	An alarm is issued first when the overtemperature threshold responds. If the temperature continues to rise, the unit either shuts down or independently adjusts the pulse frequency or output current so that thermal load is reduced. Once the cause of the fault has been eliminated (e.g. cooling has been improved), the original operating values are automatically resumed.

 

Technical specifications

The most important directives and standards are listed below. These are used as basis for the SINAMICS S120 Cabinet Modules and they must be carefully observed to achieve an EMC-compliant configuration that is safe both in terms of functionally and in operation.

European directives
2006/95/EC	Low Voltage Directive:  Directive of the European Parliament and Council of December 12, 2006, on the approximation of the laws of the member states relating to electrical equipment designed for use within certain voltage limits
2004/108/EC	EMC directive:  Directive of the European Parliament and Council of December 15, 2004, which repeals directive 89/336/EEC, on the approximation of laws of the member states relating to electromagnetic compatibility
2006/42/EC	Machinery Directive: Directive of the European Parliament and Council of May 17, 2006, on machinery and amending Directive 95/16/EC (recast).
European standards
EN ISO 3744	Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free acoustic field over a reflecting plane
EN ISO 13849‑1	Safety of machinery – safety-related parts of control systems; Part 1: General principles for design (ISO 13849-1: 2006)
EN 60146‑1‑1	Semiconductor converters – General requirements and line-commutated converters Part 1-1: Specification of basic requirements
EN 60204‑1	Safety of machinery – Electrical equipment of machines; Part 1: General requirements
EN 60529	Degrees of protection provided by enclosures (IP Code)
EN 61508‑1	Functional safety of electrical/electronic/programmable electronic safety-related systems Part 1: General requirements
EN 61800‑2	Adjustable speed electrical power drive systems  Part 2: General requirements – Rating specifications for low voltage adjustable frequency AC power drive systems
EN 61800‑3	Adjustable speed electrical power drive systems  Part 3: EMC - requirements and specific test methods
EN 61800‑5‑1	Adjustable speed electrical power drive systems Part 5: Safety requirements Main section 1: Electrical and thermal requirements
EN 61800‑5‑2	Adjustable speed electrical power drive systems Part 5-2: Safety requirements – Functional safety (IEC 61800‑5‑2: 2007)

 

Tóm tắt về dòng sản phẩm  SINAMICS S120 CM Cabinet Modules > Air-cooled Units

 

Overview

Line Modules

Power is fed to the drive line-up via Line Modules, which generate a DC voltage from the line voltage and, therefore, supply energy to the Motor Modules connected to the DC link. They are suitable for connection to grounded TN/TT and non-grounded IT systems.

The Line Modules are connected to the line supply system via Line Connection Modules and are equipped as standard according to Category C3. Category C3 is part of the "second environment" (in accordance with EN 61800-3). The “second environment” constitutes locations outside residential areas or industrial sites which are supplied from the medium-voltage network via a separate transformer.

The range of Line Modules has power ratings from 132 kW to 900 kW (380 V to 480 V) and from 250 kW to 1500 kW (500 V to 690 V). Furthermore, up to four identical Line Modules can be connected in parallel in order to increase the power rating.

For a compact configuration, Line Connection Modules up to input currents of 3200 A are available. Two Line Modules can be operated in parallel on these Line Connection Modules.

The following types of Line Module are available:

- Basic Line Modules
- Smart Line Modules
- Active Line Modules

Basic Line Modules

Basic Line Modules are designed only for infeed operation, i.e. they are not capable of recovering energy to the line supply.

If regenerative energy is produced, e.g. when the drives brake, then it must be converted to heat by means of a Braking Module and a braking resistor.

When a Basic Line Module is used as the infeed, a line reactor appropriate to the supply conditions must be installed. Line reactors are generally required if two or more Basic Line Modules are operated in parallel on a common supply system in order to increase power.

For this reason, line reactors are installed in the appropriate Line Connection Module as standard.

Line Connection Module with Basic Line Module ≤800 A

Line Connection Module with Basic Line Module >800 A

If, for example, a converter transformer is used to connect to the line supply (12-pulse operation), it may be possible to omit line reactors (depending on the supply conditions on site) and they can be optionally deselected (option L22 for a Line Connection Module combined with a Basic Line Module).

For a compact configuration, Line Connection Modules with input currents of up to 3200 A are available. Two Basic Line Modules can be operated in parallel on these Line Connection Modules. Versions with line-side fuses are available for parallel connections in order to provide selective protection of the individual Basic Line Modules.

Line Connection Module with Basic Line Modules connected in parallel

Smart Line Modules

Smart Line Modules can supply energy to the DC link and return regenerative energy to the supply system. Braking Modules and braking resistors are required only if the drives need to be decelerated in a controlled manner after a power failure (i.e. when energy cannot be recovered to the supply). When a Smart Line Module is used as the infeed, the necessary line reactor is included in the device as standard and can be optionally deselected (option L22).

Line Connection Module with Smart Line Module ≤800 A

Line Connection Module with Smart Line Module >800 A

Line Connection Module with Smart Line Modules connected in parallel

Active Line Modules

Active Line Modules can supply energy to the DC link and return regenerative energy to the supply system. Braking Modules and braking resistors are required only if the drives need to be decelerated in a controlled manner after a power failure (i.e. when energy cannot be recovered to the supply).

In contrast to Basic Line Modules and Smart Line Modules, however, Active Line Modules generate a regulated DC voltage which remains constant despite fluctuations in the line voltage. However, in this case, the line voltage must remain within the permissible tolerance range. Active Line Modules draw a virtually sinusoidal current from the supply which limits any harmful harmonics.

Active Line Modules must always be used in conjunction with an Active Interface Module. Active Interface Modules include the required pre-charging circuit for the Active Line Module in addition to a Clean Power Filter. For SINAMICS S120 Cabinet Modules, these two components are always regarded as a single unit.

Line Connection Module with Active Interface Module and Active Line Module ≤ 800 A (example frame size HX + HI)

Line Connection Module with Active Interface Module and Active Line Module >800 A

In the example, two units comprising an Active Interface Module and Active Line Module are connected in parallel to jointly supply the DC link.

Line Connection Module with Active Interface Modules and Active Line Modules connected in parallel
 

DC link components

Braking Modules enable braking resistors to absorb the regenerative energy produced during drive deceleration, which is then converted into heat. Using a Braking Module and a braking resistor, it is possible to brake motors even when the power fails.

Braking Modules as a Line Module or Motor Module option

For lower braking powers, Braking Modules are available with continuous braking powers up to 50 kW. These Braking Modules are ordered as an option for the Line Modules and Motor Modules (order codes L61/L64 (25 kW) or L62/L65(50 kW), refer to the option description).

Central Braking Modules

For higher continuous braking powers, separate Central Braking Modules are available. These modules are used centrally in the drive line-up. To increase the braking power, up to four Central Braking Modules can be connected in parallel.
 

Motor Modules

There are two different types of Motor Module available with the SINAMICS S120 Cabinet Modules drive system.

Booksize Base Cabinets with Booksize Cabinet Kits

Motor Modules at the low end of the power range from 4.8 kW to 71 kW (380 V to 480 V) can be implemented as Booksize Cabinet Kits installed in Booksize Base Cabinets.
 

Chassis Cabinets

Each Chassis Cabinet is fitted with one SINAMICS S120 Motor Module in chassis format and covers the power range from 75 kW to 1200 kW (380 V to 480 V or 500 V to 690 V). The power rating can be extended up to approx. 4500 kW by connecting up to four Motor Modules in the chassis format in parallel.

SINAMICS S120 Motor Modules in chassis format can also be used as a Braking Module (braking chopper) if a 3-phase braking resistor is connected instead of a motor. 
For more information on this topic, please refer to the SINAMICS Low Voltage Engineering Manual.
 

Auxiliary Power Supply Modules

Auxiliary Power Supply Modules supply power to the auxiliary power supply system of the SINAMICS S120 Cabinet Modules.

Units connected to this auxiliary power supply system include the fans of the SINAMICS S120 devices installed in the Cabinet Modules. In addition, the auxiliary power supply system supplies the electronic modules with an external 24 V DC voltage. This is required when the DC link is not charged, for instance, in order to maintain PROFIBUS or PROFINET communication.

 

Technical specifications

General technical specifications

Electrical specifications
Line voltages	380 ... 480 V 3 AC, ±10 % (-15 % <1 min) 500 … 690 V 3 AC, ±10 % (-15 % <1 min)
Line supply types	Grounded TN/TT systems and non-grounded IT systems
Line frequency	47 ... 63 Hz
Output frequency 1)
Control type Servo	0 ... 550 Hz
Control type Vector	0 ... 550 Hz
Control mode V/f	0 ... 550 Hz
Line power factor Fundamental
Basic Line Module	>0.96
Smart Line Module	>0.96
Active Line Module	Adjustable (factory-set to cos φ = 1)
Efficiency
Basic Line Module	>99 %
Smart Line Module	>98.5 %
Active Line Module	>97.5 % (including Active Interface Module)
Motor Module	>98.5 %
Overvoltage category	III to EN 61800‑5‑1
Control method	Vector/Servo control with and without encoder or V/f control
Fixed speeds	15 fixed speeds plus 1 minimum speed, parameterizable (in the default setting, 3 fixed setpoints plus 1 minimum speed are selectable using terminal block/PROFIBUS/PROFINET)
Skippable speed ranges	4, parameterizable
Setpoint resolution	0.001 rpm digital (14 bits + sign) 12 bits analog
Braking operation	With Active Line Modules and Smart Line Modules, four-quadrant operation as standard (energy recovery).  With Basic Line Modules, two-quadrant operation as standard,  braking by means of an optional braking chopper, or alternatively by a Motor Module.
Cabinet system
Cabinet system	Rittal TS 8, doors with double-bit key, three-section base plates for cable entry
Paint finish	RAL 7035 (indoor requirements)
Mechanical specifications
Degree of protection	IP20 (higher degrees of protection up to IP54 optional)
Protection class	I acc. to EN 61800‑5‑1
Touch protection	EN 50274/BGV A3 for the intended purpose
Cooling method	Forced air cooling AF according to EN 60146
Ambient conditions	Storage 2)	Transport 2)	Operation
Ambient temperature	-25 ... +55 °C	-25 ... +70 °C from -40 °C for 24 hours	0 ... +40 °C to +50 °C see derating data
Relative humidity (condensation not permissible)	5 ... 95 % Class 1K4 to IEC 60721‑3‑1	5 ... 95 % at 40 °C Class 2K3 acc. to IEC 60721‑3‑2	5 ... 95 % Class 3K3 acc. to IEC 60721‑3‑3
Environmental class/harmful chemical substances	Class 1C2 acc. to EN 60721‑3‑1	Class 2C2 acc. to EN 60721‑3‑2	Class 3C2 acc. to EN 60721‑3‑3
Organic/biological influences	Class 1B1 acc. to EN 60721‑3‑1	Class 2B1 acc. to EN 60721‑3‑2	Class 3B1 acc. to EN 60721‑3‑3
Degree of pollution	2 acc. to EN 61800‑5‑1
Installation altitude	Cabinet Modules chassis format: ≤2000 m above sea level - no derating; >2000 m, see characteristic curves/derating data For Booksize Cabinet Kit format Motor Modules as well as Central Braking Modules: ≤ 1000 m above sea level without derating, > 1000 m, see characteristic curves/derating data
Mechanical stability	Storage 2)	Transport 2)	Operation
Vibration load	Class 1M2 acc. to EN 60721‑3‑1	Class 2M2 acc. to EN 60721‑3‑2	–
Deflection	1.5 mm at 5 ... 9 Hz	3.1 mm at 5 ... 9 Hz	0.075 mm at 10 ... 58 Hz
Acceleration	5 m/s² at >9 ... 200 Hz	10 m/s² at >9 ... 200 Hz	9.8 m/s² at >58 ... 200 Hz
Shock load	Class 1M2 acc. to EN 60721‑3‑1	Class 2M2 acc. to EN 60721‑3‑2	Class 3M4 acc. to EN 60721‑3‑3
Acceleration	40 m/s² at 22 ms	100 m/s² at 11 ms	100 m/s² at 11 ms
Compliance with standards
Conformances/approvals, according to	CE (EMC Directive No. 2004/108/EC and Low Voltage Directive No. 2006/95/EC and Machinery Directive 2006/42/EC for functional safety)
Radio interference suppression	SINAMICS drive converter systems are not designed for connection to the public grid (first environment). Radio interference suppression is compliant with the EMC product standard for variable-speed drives EN 61800‑3, "Second environment" (industrial networks). EMC disturbances can occur when connected to the public power networks. However, if additional measures are taken (e.g. → line filter), it can also be operated in the "first environment".

 

¹⁾ Higher output frequencies available on request.

²⁾ In transport packaging.

Deviations from the specified class are underlined.

 

Characteristic curves

Derating data for the chassis format

SINAMICS S120 Cabinet Modules and the associated system components are rated for an ambient temperature of 40 °C and installation altitudes up to 2000 m above sea level.

At ambient temperatures > 40 °C, the output current must be reduced. Ambient temperatures above 50 °C are not permissible.

At installation altitudes > 2000 m above sea level, it must be taken into account that the air pressure, and therefore air density, decreases as the height increases. As a consequence, the cooling efficiency and the insulation capacity of the air also decrease.

Due to the reduced cooling efficiency, it is necessary to both reduce the ambient temperature and lower heat loss in the Cabinet Module by reducing the output current, whereby ambient temperatures lower than 40 °C may be offset to compensate.

The following table specifies the permissible output currents as a function of the installation altitude and ambient temperature for the various degrees of protection. (The permissible compensation between installation altitude and the ambient temperatures < 40 °C – air intake temperature at the entry to the Cabinet Module – has been taken into account in the specified values.)

The values apply under the precondition that it is guaranteed that the cooling air, as specified in the technical data, flows through the units as a result of the cabinet arrangement.

As additional measure for installation altitudes from 2000 m up to 5000 m, an isolating transformer is required in order to reduce transient overvoltages according to EN 60664‑1.
For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.

Current-derating factors for Cabinet Modules as a function of the ambient/air intake temperature, the installation altitude and the degree of protection.

Degree of protection	Installation altitude above sea level	Current derating factor (as a percentage of the rated current) for an ambient / air intake temperature of
	m	20 °C	25 °C	30 °C	35 °C	40 °C	45 °C	50 °C
IP20, IP21, IP23, IP43	0 ... 2000	100 %	100 %	100 %	100 %	100 %	93.3 %	86.7 %
	2001 ... 2500	100 %	100 %	100 %	100 %	96.3 %
	2501 ... 3000	100 %	100 %	100 %	98.7 %
	3001 ... 3500	100 %	100 %	100 %
	3501 ... 4000	100 %	100 %	96.3 %
	4001 ... 4500	100 %	97.5 %
	4501 ... 5000	98.2 %
IP54	0 ... 2000	100 %	100 %	100 %	100 %	93.3 %	86.7 %	80 %
	2001 ... 2500	100 %	100 %	100 %	96.3 %	89.8 %
	2501 ... 3000	100 %	100 %	98.7 %	92.5 %
	3001 ... 3500	100 %	100 %	94.7 %
	3501 ... 4000	100 %	96.3 %	90.7 %
	4001 ... 4500	97.5 %	92.1 %
	4501 ... 5000	93 %

 

Current derating for SINAMICS S120 Motor Modules, chassis format as a function of the pulse frequency

To reduce motor noise or to increase output frequency, the pulse frequency can be increased relative to the factory setting (1.25 kHz or 2 kHz). When the pulse frequency is increased, the derating factor of the output current must be taken into account. This derating factor must be applied to the currents specified in the technical specifications.
Further information is provided in the SINAMICS Low Voltage Engineering Manual.

Derating factor of the output current as a function of the pulse frequency for units with a rated pulse frequency of 2 kHz

Motor Module in chassis format	Type rating  at 400 V	Output current  at 2 kHz	Derating factor at pulse frequency
6SL3720-...	kW	A	2.5 kHz	4 kHz	5 kHz	7.5 kHz	8 kHz
380 ... 480 V 3 AC
1TE32-1AA3	110	210	95 %	82 %	74 %	54 %	50 %
1TE32-6AA3	132	260	95 %	83 %	74 %	54 %	50 %
1TE33-1AA3	160	310	97 %	88 %	78 %	54 %	50 %
1TE33-8AA3	200	380	96 %	87 %	77 %	54 %	50 %
1TE35-0AA3	250	490	94 %	78 %	71 %	53 %	50 %

 

Derating factor of the output current as a function of the pulse frequency for units with a rated pulse frequency of 1.25 kHz

Motor Module in chassis format	Type rating  at 400 V or 690 V	Output current  at 1.25 kHz	Derating factor at pulse frequency
6SL3720-...	kW	A	2 kHz	2.5 kHz	4 kHz	5 kHz	7.5 kHz
380 ... 480 V 3 AC
1TE36-1AA3	315	605	83 %	72 %	64 %	60 %	40 %
1TE37-5AA3	400	745	83 %	72 %	64 %	60 %	40 %
1TE38-4AA3	450	840	87 %	79 %	64 %	55 %	40 %
1TE41-0AA3	560	985	92 %	87 %	70 %	60 %	50 %
1TE41-2AA3	710	1260	92 %	87 %	70 %	60 %	50 %
1TE41-4AA3	800	1405	97 %	95 %	74 %	60 %	50 %
500 ... 690 V 3 AC
1TG28-5AA3	75	85	93 %	89 %	71 %	60 %	40 %
1TG31-0AA3	90	100	92 %	88 %	71 %	60 %	40 %
1TG31-2AA3	110	120	92 %	88 %	71 %	60 %	40 %
1TG31-5AA3	132	150	90 %	84 %	66 %	55 %	35 %
1TG31-8AA3	160	175	92 %	87 %	70 %	60 %	40 %
1TG32-2AA3	200	215	92 %	87 %	70 %	60 %	40 %
1TG32-6AA3	250	260	92 %	88 %	71 %	60 %	40 %
1TG33-3AA3	315	330	89 %	82 %	65 %	55 %	40 %
1TG34-1AA3	400	410	89 %	82 %	65 %	55 %	35 %
1TG34-7AA3	450	465	92 %	87 %	67 %	55 %	35 %
1TG35-8AA3	560	575	91 %	85 %	64 %	50 %	35 %
1TG37-4AA3	710	735	87 %	79 %	64 %	55 %	25 %
1TG38-1AA3	800	810	97 %	95 %	71 %	55 %	35 %
1TG38-8AA3	900	910	92 %	87 %	67 %	55 %	33 %
1TG41-0AA3	1000	1025	91 %	86 %	64 %	50 %	30 %
1TG41-3AA3	1200	1270	87 %	79 %	55 %	40 %	25 %

 

The following tables list the maximum achievable output frequency as a function of the pulse frequency:

 

Maximum output frequencies achieved by increasing the pulse frequency in Vector mode

Pulse frequency	Max. achievable output frequency
1.25 kHz	100 Hz
2 kHz	160 Hz
2.5 kHz	200 Hz
4 kHz	300 Hz

 

Maximum output frequencies achieved by increasing the pulse frequency in Servo mode

Pulse frequency	Max. achievable output frequency
2 kHz	300 Hz
4 kHz	300/550 Hz 1)

 

¹⁾ Higher frequencies on request.

Derating data for devices in booksize format

SINAMICS S120 Cabinet Modules with power units in booksize format and the associated system components are rated for an ambient temperature of 40 °C and installation altitudes up to 1000 m above sea level. If SINAMICS S120 Cabinet Modules with power units in booksize format are operated at ambient temperatures higher than 40 °C and/or installation altitudes higher than 1000 m above sea level, then the corresponding derating functions must be taken into account as a function of the ambient temperature and/or the installation altitude. These derating factors are different from the derating factors for the chassis format power units and are listed in Catalog PM 21.
 

Overload capability

SINAMICS S120 Cabinet Modules have an overload reserve, e.g. to handle breakaway torques. If larger surge loads occur, this must be taken into account when configuring. For drives with overload requirements, the appropriate base load current must, therefore, be used as a basis for the required load.

Permissible overload assumes that the drive converter is operated at its base-load current before and after the overload occurs, based on a duty cycle duration of 300 s.

For temporary, periodic duty cycles with high variations of load within the duty cycle, the relevant sections of the SINAMICS Low Voltage Engineering Manual must be observed.

Motor Modules in chassis format

Motor Modules with power units in the chassis format can be configured on the basis of different base load currents.

The base-load current for a low overload I_L is the basis for a duty cycle of 110 % for 60 s or 150 % for 10 s.

Low overload

The base-load current I_H for a high overload is based on a load cycle of 150 % for 60 s or 160 % for 10 s.

High overload

Motor Modules in booksize format

Motor Modules with power units in the booksize format have the following overload capabilities:

High overload

Line Modules in chassis format

The base-load current for a high overload I_H DC is the basis for a duty cycle of 150 % for 60 s or I_max DC for 5 s.

 

Chi tiết về sản phẩm SINAMICS S120 CM Cabinet Modules > Air-cooled Units >  Auxiliary Power Supply Modules

 

Overview

Auxiliary Power Supply Modules supply the auxiliary power supply for the SINAMICS S120 Cabinet Modules. Units connected to this auxiliary power supply system include the fans of the SINAMICS S120 devices installed in the Cabinet Modules. In addition, the auxiliary power supply system supplies the electronic modules with an external voltage of 24 V DC. This is required when the DC link is not charged, for instance, in order to maintain PROFIBUS/PROFINET communication.
 

Design

The Auxiliary Power Supply Module is connected in the customer's plant to a voltage corresponding to the respective rated unit voltage.

The standard version contains the following components:

- Fuse switch disconnector with fuse monitoring for external evaluation
- Supply of the auxiliary power supply system with 3 fused auxiliary voltages:
  + 24 V DC for the electronics power supply
  + 230 V 2 AC to supply 230 V loads
  + 380 V to 690 V 2 AC to supply the equipment fans

- Transformer with 230 V output voltage
- SITOP 24 V DC power supply
- 6-pole auxiliary power supply system (ready-wired), including connections for looping through to the next Cabinet Module
- Nickel-plated PE busbar (60 mm × 10 mm), including jumper for looping through to the next Cabinet Module
 

Integration

Block diagram: Auxiliary Power Supply Module
 

Technical specifications

		Auxiliary Power Supply Modules
		6SL3700-0MX14-0AA3	6SL3700-0MX16-3AA3	6SL3700-0MX21-0AA3	6SL3700-0MX21-4AA3
System-side power supply 380 ... 690 V 3 AC	A	125	160	200	250
Line supply connection
Conductor cross-section, max. (IEC)	mm2	150	150	150	150
Max. current carrying capacity
Load connection  380 V ... 690 V AC
To auxiliary power supply	A	63	80	100	100
To customer terminal -X45	A	50	63	80	80
Load connection  230 V 2 AC
To auxiliary power supply	A	6	10	10	20
To customer terminal -X45	A	8	10	10	20
Load connection 24 V DC
To auxiliary power supply	A	20	40	80	80
Cable cross-section, max.
Connection -X45	mm2	16	16	16	16
Connection -X47	mm2	2.5	2.5	2.5	2.5
Cooling air requirement	m3/s	Natural convection	Natural convection	Natural convection	Natural convection
PE/GND connection		PE bar	PE bar	PE bar	PE bar
Busbar cross-section	mm2	600	600	600	600
Conductor cross section, max. (IEC)	mm2	240	240	240	240
Degree of protection		IP20	IP20	IP20	IP20
Dimensions
Width	mm	600	600	600	600
Height 1)	mm	2200	2200	2200	2200
Depth	mm	600	600	600	600
Weight, approx.	kg	170	180	210	240
Minimum short-circuit current 2)	A	3200	4000	5000	7000

 

¹⁾ The cabinet height increases by 250 mm with degree of protection IP21, and by 400 mm with degrees of protection IP23, IP43 and IP54.

²⁾ Current required to ensure reliable tripping of installed protective devices.

 

 

(Nguyễn Thảo Trường - http://DienElectric.com theo Siemens)