Omron D4BL-1CRA Safety Door Switch
Omron D4BL-1CRA is a 24 VDC guard lock safety door switch designed for protective-door interlocking on industrial machinery. Its mechanical locking mechanism supports controlled access to guarded machine areas, while a Type 2 low-level coded interlock provides mechanical guard-position monitoring. The switch provides IP67 enclosure protection and operates at speeds from 0.05 to 0.5 m/s. Its direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel, supporting positive mechanical contact opening when the associated guard is operated. The D4BL-1CRA belongs to the D4BL series within the guard lock safety switch range from Omron machine safety products.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4BL-1CRA |
Omron D4BL-1CRA Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Solenoid voltage/ indicator | 24 VDC |
| Lock and release types | Mechanical lock |
| 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-1CRA Guard Lock Safety Switch operates at 24 VDC and uses a mechanical locking mechanism for protective-door interlocking. Its Type 2 low-level coded interlock supports mechanical guard-position detection, while IP67 enclosure protection supports industrial machine installations. Operating speed ranges from 0.05 to 0.5 m/s. The direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel, supporting defined mechanical contact opening when the associated protective guard is operated.
Electrical characteristics include 50 mΩ maximum contact resistance, a 300 V rated insulation voltage and 100 MΩ minimum insulation resistance. The minimum contact gap is 2 × 2 mm, while rated frequency is 50/60 Hz. Malfunction vibration resistance covers 10 to 55 Hz at 0.35 mm single amplitude. Shock resistance is specified at 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. The operating temperature range extends from −10 to 55°C, ambient humidity is rated up to 95%. Its combination of 24 VDC operation, mechanical locking and direct opening supports protective-door interlocking within machine safety systems. For another 24 VDC mechanical-lock D4BL model with a G1/2 conduit outlet and closely related electrical and mechanical specifications, the D4BL-2CRA-A provides a related configuration.
