| Manufacturer part number (MPN) | PSR-PS20-1NO-1NC-24DC-SC |
| EAN / GTIN | 4046356912891 |
| Sales unit | pcs |
| Contact configuration | 1 NO + 1 NC |
| Product type | Coupling Relay |
| Manufacturer order number | 2700356 |
| Model | Basic device |
| Suitable for monitoring of position switches | No |
| Suitable for monitoring of emergency-stop circuits | No |
| Suitable for monitoring of valves | No |
| Suitable for monitoring of tactile sensors | No |
| Suitable for monitoring of magnetic switches | No |
| Suitable for monitoring of proximity switches | No |
| Type of electric connection | Screw connection |
| Suitable for rail mounting | Yes |
| Rated control supply voltage AC 50 Hz | 24 V |
| Rated control supply voltage DC | 20.4–26.4 V |
| Voltage type for actuating | DC |
| With detachable clamps | No |
| With start input | No |
| With muting function | No |
| With feedback circuit | No |
| Release-delay | 0.1 s |
| SIL according to IEC 61508 | 3 |
| With approval for BG BIA | No |
| With approval according to UL | No |
| Width | 6.8 mm |
| Height | 93.1 mm |
| Depth | 102.5 mm |
| Country of origin | Germany |