| Manufacturer | SIEMENS |
| Switch accessories | mounting unit |
| Mounting | front fixing |
| Trade name | SIRIUS ACT |
| Switch standard | 22mm |
| Symbol | Manufacturer series | Application | Application - series/manufacturer |
|---|---|---|---|
| 3SU1550-0AA10-0AA0 | - | for 3-contact elements | 3SU1.5 |
| 3SU1550-0BA10-0AA0 | - | for 4-contact elements | 3SU1.5 |
| 3SU1500-0AA10-0AA0 | 3SU100 | for 3-contact elements | - |