Omron D4NL-2AFG-B Safety Door Switch
Omron D4NL-2AFG-B is a 24 VDC solenoid guard lock safety switch designed to control access through protective machine doors. It uses solenoid locking with mechanical release, while the 1NC/1NO + 1NC/1NO contact configuration supports guard and lock status monitoring. A G1/2 conduit provides the wiring connection, and 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, while IP67 protection supports industrial machine installations. The D4NL-2AFG-B belongs to the D4NL Series within the guard lock safety switch range from Omron industrial safety products, linking machine guards with controlled access and safety monitoring.

| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NL-2AFG-B |
Omron D4NL-2AFG-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 | Solenoid lock Mechanical 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-2AFG-B Guard Lock Safety Door Switch operates with a 24 VDC solenoid and uses solenoid locking with mechanical release for protective machine access. Its 1NC/1NO + 1NC/1NO contact configuration provides separate switching paths for monitoring guard and lock status. A G1/2 conduit provides the wiring connection, while the 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 enclosure protection supports industrial machine safety installations. The defining relationships for this model are solenoid guard locking, mechanical release, G1/2 conduit wiring, contact monitoring and protective-door access control. These characteristics identify the product more clearly than adding secondary environmental or resistance specifications. The solenoid lock controls the guarded access point, while the contact arrangement communicates guard and lock conditions to the associated safety circuit. An orange LED supports 10 to 115 VAC/VDC indication for visible status information. Locking principle is an important distinction when comparing this model with mechanically locked D4NL variants. For the same G1/2 connection and 1NC/1NO + 1NC/1NO contact arrangement but using mechanical locking with solenoid release, the D4NL-2AFA-B provides the closest related configuration.


