Omron D40A-1C2 Safety Door Switch
Omron D40A-1C2 is a compact non-contact safety door switch designed to monitor protective doors and movable machine guards without mechanical switch actuation. Its integrated 2 m cable supports connection to the associated safety system, while the specified operating-distance variation is 20% or less at 23°C, with a maximum distance of 2.5 mm. The non-contact sensing arrangement supports machine guarding where switch and actuator position are monitored without conventional tongue operation. The D40A-1C2 belongs to the D40A Series within the non-contact safety door switch range from Omron machine safety products, linking protective access detection, guard position and compatible machine safety control systems.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D40A-1C2 |
Omron D40A-1C2 Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Direct opening travel | 20% or less of operating distance at 23 °C (maximum 2.5 mm) |
| Insulation resistance | 50 MΩ max |
| Vibration resistance | 10 to 55 to 10 Hz (single amplitude: 0.75 mm, double amplitude: 1.5 mm) |
| Shock resistance | 300 m/s2 min. |
| Ambient operating temperature | –10 to 55°C |
| Ambient operating humidity | 25% to 85% |
| Cable | 2 m |
| Weight | Switch: approx. 145 g, actuator: approx. 20 g |
The Omron D40A-1C2 Non-contact Safety Door Switch provides protective-door and machine-guard position detection without conventional mechanical switch actuation. Its compact non-contact sensing arrangement establishes a relationship between the switch, actuator and monitored access point, allowing guard position to be communicated to a compatible safety control system. The integrated 2 m cable provides a defined connection length for installation around guarded machinery. Its specified operating-distance variation is 20% or less at 23°C, with a maximum operating distance of 2.5 mm. The important semantic relationships are non-contact safety switching, protective access detection, machine guard monitoring, actuator position and safety controller integration. These functional entities describe the D40A-1C2 more clearly than secondary vibration, shock or weight specifications. Unlike conventional tongue-operated safety switches, the D40A family does not depend on mechanical switch actuation for guard detection, making sensing method an important product distinction. Cable length also provides a practical comparison point between individual D40A models. The D40A-1C2 therefore connects a monitored protective guard with the machine safety architecture through non-contact detection. For the same D40A non-contact safety function with a longer integrated cable, the D40A-1C5 provides the closest related model.
