




| Nominal voltage | 40/60Hz, 50/70Hz or 360/440Hz |
| System frequency | 3VA |
| Overloads | 1.2 x rating continuously, 1.5 x rating for 10 x seconds |
| Set poit repeatability | > 0.5% of full span |
| Differenctial (hysteresis) | 40/60Hz, 50/70Hz: Adjustable 0.1 to 3.0Hz 360/440Hz: Adjustable 10 to 30Hz |
| Output relay | 2-pole chage over |
| Relay contact rating | AC: 240V 5A, non inductive DC: 24V 5A resistive |
| Relay mechanical life | 0.2 million operations at rated loads |
| Relay reset | Automatic |
| Operating temperature | 0oC to +60oC (0oC to +40oC for Ul models) |
| Storage temperature | -20oC to + 70oC |
| Temperature co-efficient | 0.05% per oC |
| Interference immunity | Electrical stress surge withstand and non-function to ANSI/IEEE C37 90a |
| Enclosure style | DIN-rail with wall mounting racility |
| Material | Flame retardant polycarbonate/ ABS |
| Enclosure integrity | IP50 |
| Model 252 dimensions | 55mm x 70mm x 112mm (WxHxD) |
| Weight | 0.4kg approx. |



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