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Khởi động mềm | Soft Starters

Tại sao nên dùng dòng Khởi động mềm Siemens 3RW50 soft starters

SIRIUS 3RW50 Basic Performance soft starters are the compact solution for standard applications. They have two-phase motor control and cover the performance range from 75 to 315 kW (at 400 V).
Tại sao nên dùng dòng Khởi động mềm Siemens 3RW50 soft starters
Optional HMI modules for installation in the control cabinet door, laterally mountable communication modules (PROFINET, PROFIBUS, EtherNet/IP and Modbus) and either an analog output or thermistor motor protection provide maximum flexibility.

With their modern hybrid switching technology, the SIRIUS 3RW50 soft starters offer efficient switching for long-term, energy-saving use.


 

Benefits

Product characteristics/function

Performance features/benefits

Hybrid switching devices and two-phase motor control

Minimum power loss and optimized motor control by avoiding DC components

Small and compact design

Space-saving, clearly arranged control panel layout

TIA Integration – communication modules and HMI modules optional

Efficient configuration and maximum flexibility in automation engineering

Motor overload and intrinsic device protection without additional wiring

Adjustable trip classes, integrated diagnostic functions

Soft Torque

Reduced mechanical loading and optimum pump stop

Parameterization using potentiometers

Simple and fast commissioning

Wide range for control supply and main voltage

Low variance, high system availability even with weak supply networks

Certified according to ATEX/IECEx Directives

Suitable for the starting of explosion-proof motors with "increased safety" type of protection
 

Configuration

Type

 

3RW5055

3RW5056

Rated operational current Ie

A

143

171

Power electronics

Load rating rated operational current Ie

 

 

IEC + UL/CSA individual mounting at 40/50/60 °C, AC‑53a

A

143/128/118

171/153/141

Permissible rated motor current and starts/h

Normal starting (CLASS 10A)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

143/128/118

171/153/141
  • 300% IM

 

 
  • Start-up time 5 s

1/h

43

43
  • Start-up time 10 s

1/h

18

18
  • 350% IM

 

 
  • Start-up time 5 s

1/h

28

28
  • Start-up time 10 s

1/h

10

9

Normal starting (CLASS 10E)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

143/128/118

171/153/141
  • 300% IM

 

 
  • Start-up time 10 s

1/h

21

21
  • Start-up time 20 s

1/h

8

8
  • 350% IM

 

 
  • Start-up time 10 s

1/h

12

9
  • Start-up time 20 s

1/h

4

--

Heavy startup (CLASS 20E)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

108/98/88

135/123/111
  • 300% IM

 

 
  • Start-up time 20 s

1/h

10

10
  • Start-up time 40 s

1/h

4

4
  • 350% IM

 

 
  • Start-up time 20 s

1/h

7

7
  • Start-up time 40 s

1/h

2.5

2.5

Adjustable rated motor current IM

 

 
  • Minimum/maximum

A

68/143

81/117
 

Type

 

3RW5072

3RW5073

3RW5074

3RW5075

3RW5076

3RW5077

Rated operational current Ie

A

210

250

315

370

470

570

Power electronics

Load rating rated operational current Ie

 

 

IEC + UL/CSA individual mounting at 40/50/60 °C, AC‑53a

A

210/186/170

250/220/200

315/279/255

370/328/300

470/416/380

570/504/460

Permissible rated motor current and starts/h

Normal starting (CLASS 10A)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

210/186/170

250/220/200

315/279/255

370/328/300

470/416/380

570/504/460
  • 300% IM

 

 
  • Start-up time 5 s

1/h

43

43

43

43

43

28
  • Start-up time 10 s

1/h

18

18

18

18

18

11
  • 350% IM

 

 
  • Start-up time 5 s

1/h

28

28

28

28

28

16
  • Start-up time 10 s

1/h

8

10

10

10

10

4

Normal starting (CLASS 10E)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

210/186/170

250/220/200

315/279/255

370/328/300

470/416/380

570/504/460
  • 300% IM

 

 
  • Start-up time 10 s

1/h

21

21

21

21

20

21
  • Start-up time 20 s

1/h

8

8

8

8

7

8
  • 350% IM

 

 
  • Start-up time 10 s

1/h

8

13

12

13

12

13
  • Start-up time 20 s

1/h

--

4

4

4

2

4

Heavy startup (CLASS 20E)

 

 

Rated motor current IM; Tu = 40/50/60 °C
ON period = 70%; motor protection activated

A

162/146/130

200/180/160

219/195/171

258/230/202

272/254/218

284/262/240
  • 300% IM

 

 
  • Start-up time 20 s

1/h

10

10

10

10

10

10
  • Start-up time 40 s

1/h

4

4

4

4

4

4
  • 350% IM

 

 
  • Start-up time 20 s

1/h

7

7

7

7

7

7
  • Start-up time 40 s

1/h

2.5

2.5

2.5

2.5

2.5

2.5

Adjustable rated motor current IM

 

 
  • Minimum/maximum

A

90/210

100/250

135/315

160/370

200/470

240/570
Motor feeders according to IEC with 3VA motor starter protectors/circuit breakers (without semiconductor protection)
 

Type of coordination "1", CLASS 10,
short-circuit breaking capacity Iq in kA, see table
 

Note:

For general recommendations on the setup of motor feeders with soft starters, see "SIRIUS 3RW soft starters" → "Overview" → "Motor feeders with soft starters".

3RW5055

3VA2220-7MN32-0AA0

20

3VA2220-7MN32-0AA0

20

3RW5056

3VA2220-7MN32-0AA0

20

3VA2220-7MN32-0AA0

20

3RW5072

3VA2440-7MN32-0AA0

65

3VA2440-7MN32-0AA0

65

3RW5073

3VA2440-7MN32-0AA0

65

3VA2440-7MN32-0AA0

65

3RW5074

3VA2440-7MN32-0AA0

65

3VA2440-7MN32-0AA0

65

3RW5075

3VA2580-6HN32-0AA0

65

3VA2580-6HN32-0AA0

65

3RW5076

3VA2580-6HN32-0AA0

65

3VA2580-6HN32-0AA0

65

3RW5077

3VA2580-6HN32-0AA0

65

3VA2580-6HN32-0AA0

65
 

Note:

The service factor or measurement inaccuracies have been taken into account, for example, for the selection of the specified motor starter protectors/circuit breakers; the specified short-circuit breaking capacities Iq in kA are covered by combination tests. Smaller motor starter protectors/circuit breakers from the same series can be used at any time as smaller ones trip more quickly in the event of a short circuit (unchanged short-circuit breaking capacity) and thus protect the soft starter in any case. The dimensioning of the short-circuit components must match the connected three-phase motor, the short-circuit and overload requirements of the application, and the line protection for the cables used.
 

Motor feeders acc. to IEC with 3NA3 fuses

gG class full-range fuses for cable and line protection
according to IEC 60269‑2, without semiconductor protection
 

Type of coordination "1",
short-circuit breaking capacity Iq = 65 kA
 

Note:

For general recommendations on the setup of motor feeders with soft starters, see "SIRIUS 3RW soft starters" → "Overview" → "Motor feeders with soft starters".

3RW5055

3NA3244-6

3RT1055

3RT1055

3RW5056

3NA3244-6

3RT1056

3RT1064

3RW5072

2 x 3NA3354-6

3RT1064

3RT1064

3RW5073

2 x 3NA3354-6

3RT1065

3RT1065

3RW5074

2 x 3NA3365-6

3RT1075

3RT1075

3RW5075

2 x 3NA3365-6

3RT1075

3RT1075

3RW5076

2 x 3NA3365-6

3RT1076

3RT1076

3RW5077

2 x 3NA3365-6

3TF68

3TF68
 

Note:

The specified short-circuit breaking capacities Iq in kA are covered by combination tests. Smaller fuses than those specified can be used at any time as smaller ones trip more quickly in the event of a short circuit (unchanged short-circuit breaking capacity) and thus protect the soft starter in any case. The dimensioning of the short-circuit components must, however, be suitable for the connected three-phase motor and the line protection for the cables used.
 

Motor feeders according to IEC with 3NE1 SITOR fuses

gR class full-range fuses for semiconductor protection,
cable and line protection
 

Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
 

Note:

For general recommendations on the setup of motor feeders with soft starters, see "SIRIUS 3RW soft starters" → "Overview" → "Motor feeders with soft starters".

3RW5055

3NE1227-0

3RT1055

3RT1055

3RW5056

3NE1230-0

3RT1056

3RT1064

3RW5072

3NE1230-2

3RT1064

3RT1064

3RW5073

3NE1331-0

3RT1065

3RT1065

3RW5074

3NE1333-2

3RT1075

3RT1075

3RW5075

3NE1334-2

3RT1075

3RT1075

3RW5076

3NE1436-2

3RT1076

3RT1076

3RW5077

3NE1437-2

3TF68

3TF68
 

Note:

The specified short-circuit breaking capacities Iq in kA are covered by combination tests. Smaller fuses than those specified can be used at any time as smaller ones trip more quickly in the event of a short circuit (unchanged short-circuit breaking capacity) and thus protect the soft starter in any case. The dimensioning of the short-circuit components must, however, be suitable for the connected three-phase motor and the line protection for the cables used.
 

Motor feeders according to IEC with 3NE3 fuses

aR class partial-range fuses for semiconductor protection
 

Type of coordination "2",
short-circuit breaking capacity Iq = 65 kA
 

Note:

For general recommendations on the setup of motor feeders with soft starters, see "SIRIUS 3RW soft starters" → "Overview" → "Motor feeders with soft starters".

3RW5055

3NA3244-6

3NE3334-0B

3RT1055

3RT1055

3RW5056

3NA3244-6

3NE3335

3RT1056

3RT1064

3RW5072

2 x 3NA3354-6

3NE3333

3RT1064

3RT1064

3RW5073

2 x 3NA3354-6

3NE3335

3RT1065

3RT1065

3RW5074

2 x 3NA3365-6

3NE3335

3RT1075

3RT1075

3RW5075

2 x 3NA3365-6

3NE3336

3RT1075

3RT1075

3RW5076

2 x 3NA3365-6

3NE3340-8

3RT1076

3RT1076

3RW5077

2 x 3NA3365-6

3NE3340-8

3TF68

3TF68
 

Note:

The specified short-circuit breaking capacities Iq in kA are covered by combination tests. Smaller fuses than those specified can be used at any time as smaller ones trip more quickly in the event of a short circuit (unchanged short-circuit breaking capacity) and thus protect the soft starter in any case. The dimensioning of the short-circuit components must, however, be suitable for the connected three-phase motor and the line protection for the cables used.
 

For CLASS 10 applications, as an alternative to the gG class full-range fuses for cable and line protection 3NA3 (F1), 3VA motor starter protectors/circuit breakers can also be used, possibly with reduced short-circuit breaking capacity, see Table "Motor feeders according to IEC with 3VA motor starter protectors (without semiconductor protection)" In these cases, optional line contactors can be dispensed with.

 

Technical specifications

Article number

 

3RW5055
3RW5056

3RW5072
3RW5073
3RW5074
3RW5075
3RW5076
3RW5077

Installation/ mounting/ dimensions

 

 

 

Width x Height x Depth

 

120 × 198 × 249

160 × 230 × 282

mounting type

 

screw fixing

mounting position

 

with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back

required spacing / with side-by-side mounting

 

 

 

  • ● upwards

mm

100

  • ● at the side

mm

5

  • ● downwards

mm

75

installation altitude / at height above sea level / maximum 1)

m

5 000

protection class IP

 

IP00

Ambient conditions

 

 

 

ambient temperature

 

 

 

  • ● during operation 2)

°C

-25 ... +60

  • ● during storage and transport

°C

-40 ... +80

environmental category / acc. to IEC 60721

 

 

 

  • ● during operation

 

3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6

  • ● during storage

 

1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4

  • ● during transport

 

2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)
1) Derating as of 1000 m, see manual
2) Please observe derating at temperatures of 40 °C or above
 

Article number

 

3RW50..-..B0.

3RW50..-..B1.

Control circuit/ Control

 

 

 

control supply voltage

 

 

 

  • ● at AC/DC

V

24/24

--/--

  • ● at AC

V

--

110 ... 250

Relative negative tolerance/Relative positive tolerance at AC

%

-20/20

-15/10

Relative negative tolerance/Relative positive tolerance at DC

%

-20/20

--/--

control supply voltage frequency

Hz

50 ... 60

  • ● Relative negative tolerance/Relative positive tolerance

 

-10/10

design of the overvoltage protection

 

Varistor

design of short-circuit protection for control circuit 1)

 

4 A gG fuse (Icu=1 kA), 6 A quick-acting fuse (Icu=1 kA), C1 miniature circuit breaker (Icu= 600 A), C6 miniature circuit breaker (Icu= 300 A)
1) Is not part of scope of supply
 

Article number

 

3RW50..-..B.4

3RW50..-..B.5

Power Electronics

 

 

 

operating voltage rated value

V

200 ... 480

200 ... 600

  • ● Relative negative tolerance/Relative positive tolerance

 

-15, 10

Operating frequency

Hz

50 ... 60

  • ● Relative negative tolerance/Relative positive tolerance

 

-10/10

minimum load [%] 1)

%

15

wire length between soft starter and motor maximum

m

800
1) Relative to smallest settable Ie
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