| Manufacturer | Siemens |
| Category | SIRIUS Safety Relays |
| SKU / Product code | 3SK1220-2AB40 |
| Weight | 0.15 kg |
| Country of origin | DE |
| Commodity code | 85371098 |
| Description | SIRIUS safety relay Input expansion Advanced Input expansion for an additional 2-channel or two 1-channel sensors Us = 24 V DC Spring-type terminal (push-in) |
