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MS12
EN 81-20/50 safety module for door-contact bypass during levelling/re-levelling with open doors and UCM detection.
EN 81-20UCMSIL3

- SIL3
- Standards
- EN 81-20
- Standards
Overview
The MS12 is a safety module for the EN 81-20 / EN 81-50 safety circuit. It manages door-contact bypassing for levelling and re-levelling with open doors, and acts as a UCM (unintended car movement) detector.
- Certified EN 61508-2:2002 SIL3, EN 81-20:2020, EN 81-50:2020
- IN1/IN2 GND inputs, 2 NO + 1 NC guided-contact outputs
- 4 status LEDs (POWER, OUT, IN1, IN2)
- Rated 250 V AC / 8 A (max 400 V AC / 15 A)
Specifications
| Usage | EN 81-20/50 safety circuit |
|---|---|
| Standards | EN 61508-2 SIL3, EN 81-20:2020, EN 81-50:2020 |
| Inputs | IN1, IN2 GND |
| Outputs | 2 NO + 1 NC guided contacts |
| Dimensions | 100 x 25 x 30 mm |
| Power supply | 24 VDC ±10% |
| Current consumption | 50–100 mA |
| Max nominal voltage | 250 V AC (max 400 V AC) |
| Max nominal current | 8 A (max 15 A) |
| Operating temperature | -15 °C to +55 °C |
Compatibility
EN 81-20/50UCM monitoring