Guard lock safety-door switch, D4SL-N, M20, 3NC + 1NC/1NO, head: resin, 24VDC solenoid lock/mechanical release, LED indicator
| Door switch type | Key-operated |
| Guard-lock | |
| Material housing | Plastic |
| Material head | Resin |
| Ambient temperature (operating) | -10-55 °C |
| Holding force | 1300 N |
| Direction of operation | Adjustable |
| Door contacts NC | 3 |
| Door contacts NO | 0 |
| Lock monitor contacts NC | 1 |
| Lock monitor contacts NO | 1 |
| Lock/Release key type | Standard key |
| Lock/Release key position | Front + Back |
| Lock/Release key material | Metal |
| Solenoid voltage | 24 V |
| LED indicator | |
| Connection method | Terminal block |
| Cable length | 0 m |
| Degree of protection (IP) | IP67 |
| Conduit size | M20 |
| Number of conduits | 1 |
| Shape | Cuboid |
| Overall length of sensor | 179.9 mm |
| Height of sensor | 39 mm |
| Width of sensor | 39 mm |
| Switch without actuator | |
| Lock/Release logic | Power to lock (Solenoid lock) |