Omron D4BL-2DRA Safety Door Switch
Omron D4BL-2DRA is a 24 VDC guard lock safety door switch designed to secure protective machine doors and monitor access conditions. It uses a mechanical lock, allowing the guard to remain mechanically secured as part of the machine safety system. A G1/2 conduit provides the wiring connection, while a Type 2 low-level coded interlock supports guard-position detection. IP67 protection suits industrial machine installations, and the direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel. The D4BL-2DRA belongs to the D4BL series within the guard lock safety switch range from Omron industrial safety products, supporting machine guarding and controlled protective access.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4BL-2DRA |
Omron D4BL-2DRA Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Solenoid voltage/ indicator | 24 VDC |
| Lock and release types | Mechanical lock |
| Conduit outlet/Connector | G1/2 |
| Interlock type | Type 2 |
| Coding level | Low level coded |
| Degree of protection | IP67 |
| Operating speed | 0.05 to 0.5 m/s |
| Direct opening force | 19.61 N min. |
| Direct opening travel | 20 mm min |
| Contact resistance | 50 mΩ max. |
| Rated insulation voltage (Ui) | 300 V |
| Rated frequency | 50/60 Hz |
| Insulation resistance | 100 MΩ min. |
| Contact gap | 2 × 2 mm min |
| Vibration resistance | Malfunction 10 to 55 Hz, 0.35 mm single amplitude |
| Shock resistance | Destruction 1,000 m/s2 min. Malfunction 300 m/s2 min. |
| Ambient operating temperature | –10 to 55°C |
| Ambient operating humidity | 95% max |
| Weight | Approx. 800 g |
The Omron D4BL-2DRA Guard Lock Safety Door Switch operates at 24 VDC and uses a mechanical lock for securing protective machine doors. A G1/2 conduit provides the wiring connection, while a Type 2 low-level coded interlock supports mechanical guard-position detection. The combination of guard locking and door monitoring connects this model with machine access control, protective guards and industrial safety circuits. IP67 enclosure protection supports installation around industrial machinery where dust or moisture may reach the switch.
The direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel, while the switch supports operating speeds from 0.05 to 0.5 m/s. For model selection, the important attributes are the 24 VDC operation, mechanical locking method, G1/2 conduit, Type 2 interlock and direct opening mechanism. These characteristics define how the D4BL-2DRA relates to guard lock safety switches and protective-door interlocking without adding low-value technical specifications merely for content length. Mechanical locking is especially relevant where the machine safety design requires the guard to remain secured as part of the access-control arrangement. The supplied data does not specify a contact configuration for this model, so one should not be assumed. For a closely related D4BL model using mechanical locking with a G1/2 conduit and a documented 24 VDC configuration, the D4BL-2DRA-A provides a relevant related model.
