← Safety Equipment
D4NH Safety-Door Hinge Switch D4NH-2CAS
OMRON — D4NH Series
The D4NH-2CAS is a hinge-mounted safety switch family from OMRON, installed directly on the hinge axis of a guard door. It mechanically senses the rotation of the hinge pin as the door opens and breaks the circuit via positive-break contacts, giving a compact safety interface that adds no extra footprint on the door and requires no separate actuator. IP67 protection suits heavy industrial environments.
Key Features
- Direct mounting on the door hinge axis, no separate actuator required
- Positive-break contact construction
- IP67 protection, housing rated for heavy industrial environments
- Adaptable for left- or right-hinged doors
- 2 NC contact configuration
- Usable in ISO 13849-1 safety category calculations
Detailed Parameters
| Function | Hinge-type safety switch (door position sensing) |
| Contact Construction | Positive break, 2 NC |
| Protection Rating | IP67 |
| Body Material | Metal housing |
| Electrical Rating | 250 VAC, 3 A (per family datasheet) |
| Mounting | Door hinge pin axis, left/right adaptable |