Omron D4NL-1CFA-B Safety Door Switch
Omron D4NL-1CFA-B is a 24 VDC guard lock safety door switch designed for protective-door interlocking and controlled machine access. It uses a mechanical lock with solenoid release, while the 2NC + 1NC/1NO contact configuration provides switching paths for monitoring guard and lock conditions. A Type 2 low-level coded interlock supports mechanical guard-position detection, and IP67 enclosure protection suits industrial machine safety installations. The direct opening mechanism provides 60 N minimum force with 10 mm minimum travel, while operating speed ranges from 0.05 to 0.5 m/s. The D4NL-1CFA-B belongs to the D4NL series within the guard lock safety switch range from Omron industrial safety products for machine guard monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NL-1CFA-B |
Omron D4NL-1CFA-B Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Solenoid voltage/ indicator | Solenoid: 24 VDC, Orange LED: 10 to 115 VAC/VDC |
| Lock and release types | Mechanical lock Solenoid release |
| Contact configuration | 2NC+1NC/1NO |
| 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 | 60 N min |
| Direct opening travel | 10 mm min |
| Contact resistance | 25 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, 0.75 mm single amplitude |
| Shock resistance | Destruction 1,000 m/s2 min. Malfunction 100 m/s2 min. |
| Ambient operating temperature | −10 to 55°C |
| Ambient operating humidity | 95% max |
| Weight | Approx. 370 g |
The Omron D4NL-1CFA-B Guard Lock Safety Door Switch operates with a 24 VDC solenoid and uses a mechanical lock with solenoid release for protective machine access. Its 2NC + 1NC/1NO contact configuration provides multiple switching paths for monitoring guard and lock conditions. A Type 2 low-level coded interlock supports mechanical guard-position detection, while IP67 enclosure protection suits industrial machine safety installations where dust or moisture may be present.
The direct opening mechanism provides 60 N minimum force with 10 mm minimum travel, and operating speed ranges from 0.05 to 0.5 m/s. An orange LED supports 10 to 115 VAC/VDC indication for visible status information. The primary model relationships are mechanical locking, solenoid release, 2NC + 1NC/1NO contacts, guard-position detection and protective access control. These attributes connect the D4NL-1CFA-B with guard lock safety switches, machine guards and industrial safety circuits without adding unnecessary specifications. The lock mechanism controls access, while the contacts communicate guard and lock conditions to the associated safety system. The supplied data does not define a conduit thread for this model, so a specific conduit format should not be assumed. For a D4NL model with the same 2NC + 1NC/1NO contact configuration but a G1/2 conduit and solenoid-lock arrangement, the D4NL-2CFG-B provides a useful related comparison.
