
ABB electrical accessory S 2TLA010051R0100
- BrandABB
- SeriesS
- Depth120 mm
- Operating voltage at AC 50Hz85–265 V
- Operating voltage from 60 Hz AC mains85–265 V
- AC supply voltage 50Hz85–265 V
- AC 60 Hz supply voltage85–265 V

Sentry SSR20M Safety relay with relay outputs 3NO+1NC, 85-265 VAC/120-375 VDC supply voltage and screw terminals. For monitoring of two-hand devices. Manual or
| Series | S |
|---|---|
| Electrical | |
| Operating voltage at AC 50Hz | 85–265 V |
| Operating voltage from 60 Hz AC mains | 85–265 V |
| AC supply voltage 50Hz | 85–265 V |
| AC 60 Hz supply voltage | 85–265 V |
| DC supply voltage | 120–375 V |
| Rated DC voltage | 120–375 V |
| Rated switching current | 6 A |
| Number of safety-related undelayed contact outputs | 3 |
| Operating voltage current type | AC |
| Supply voltage current type | AC |
| Type of switch function of the inputs | Normally open contact (NO) |
| Connection type | Screw connection |
| With removable terminals, clamps | Yes |
| Mechanical | |
| Depth | 120 mm |
| Width | 22.5 mm |
| Height | 120 mm |
| Busbar mounting possible | Yes |
| Other | |
| Certified per IEC 61508 | 3 |
| Type class for safety demands according to EN 574 | Type III C |
| Suitable for security systems | Yes |
| Performance level per EN ISO 13849-1 | Level e |
| With approval for BG BIA | No |
| With approval for TÜV | Yes |
| With feedback circuit | Yes |
| With start input | Yes |
| UL approved | Yes |
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