Omron D4NL-2AFA-B Safety Door Switch
Omron D4NL-2AFA-B is a 24 VDC guard lock safety door switch using mechanical locking with solenoid release for protective machine access. Its 1NC/1NO + 1NC/1NO contact configuration provides guard and lock status switching, while the G1/2 conduit supports machine wiring. A Type 2 low-level coded interlock provides mechanical guard-position detection, and the direct opening mechanism delivers 60 N minimum force with 10 mm minimum travel. IP67 enclosure protection supports industrial machine safety installations requiring guarded access control. The D4NL-2AFA-B belongs to the D4NL Series within the guard lock safety door switch range from Omron machine safety products, connecting protective doors, guard locking and safety circuit monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NL-2AFA-B |
Omron D4NL-2AFA-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 | 1NC/1NO+1NC/1NO |
| 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 | 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-2AFA-B Guard Lock Safety Door Switch operates with a 24 VDC solenoid and uses mechanical locking with solenoid release for controlled access through protective machine doors. Its 1NC/1NO + 1NC/1NO contact configuration provides separate switching paths for monitoring guard and lock conditions. A G1/2 conduit provides the machine wiring connection, while a Type 2 low-level coded interlock supports mechanical guard-position detection. The direct opening mechanism provides 60 N minimum force with 10 mm minimum travel, and IP67 protection supports industrial machine safety installations. The main product relationships are mechanical guard locking, solenoid release, G1/2 wiring, protective-door detection and contact monitoring. These attributes clearly define the D4NL-2AFA-B within the guard lock safety switch family without depending on secondary specifications. The mechanical lock secures the protective guard, while the solenoid provides the defined release function. Its 1NC/1NO + 1NC/1NO arrangement also gives this model a clear contact-level relationship for safety circuit selection. An orange LED supports 10 to 115 VAC/VDC indication for visible status information. For the same G1/2 conduit and 1NC/1NO + 1NC/1NO contact configuration but using solenoid locking with mechanical release, the D4NL-2AFG-B provides the closest functional comparison.
