| Typ | Housing | Safety- contacts | Signal- circuit | Opposite- channel- polarity | Monitoring- Start- Button | Safety Standards see below* | User- Manual | |||
| *RC | *C | *PL | *SIL | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Safe IRZ.2 | 22.5mm Housing | 2 change over | - | no | - | max. 4 | - | - | - | - |
| Safe X4 | 22.5mm Housing | 4 | 1 Loop back | yes | - | 1-4 | 1-4 | a-e | - | Safe X4 |
| Safe X4.1 | 22.5mm Housing | 4 | 1 Loop back | no | - | 1-4 | 1-4 | a-e | - | Safe X4.1 |
| RS-NAGX5 | 22.5mm Housing | 5 | 1 Loop back | selectable | - | 1-4 | 1-4 | a-e | - | RS-NAGX5 |
| Safe IL2 | 63mm Housing | 3 | 1 | no | - | 1-4 | - | - | - | Safe IL2 |