Omron D4NL-2HFG-B Safety Door Switch
Omron D4NL-2HFG-B is a 24 VDC guard lock safety door switch designed for controlled access through protective machine doors. It uses solenoid locking with mechanical release, while the 3NC + 2NC contact configuration provides multiple normally closed paths for guard and lock status monitoring. A G1/2 conduit supports machine wiring, and the Type 2 low-level coded interlock provides mechanical guard-position detection. IP67 protection supports industrial machine safety installations requiring guard locking. The D4NL-2HFG-B belongs to the D4NL Series within the guard lock safety switch range from Omron machine safety products, connecting protective access, guard locking, lock status and machine safety monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NL-2HFG-B |
Omron D4NL-2HFG-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 | 3NC+2NC |
| 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-2HFG-B Guard Lock Safety Door Switch operates with a 24 VDC solenoid and uses solenoid locking with mechanical release for controlled machine access. Its 3NC + 2NC contact configuration provides multiple normally closed switching paths for monitoring protective-door and lock conditions. A G1/2 conduit supports machine wiring, while the Type 2 low-level coded interlock establishes mechanical guard-position detection. 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. IP67 protection supports industrial machine safety installations requiring guard locking and protective access monitoring. The important product relationships are solenoid guard locking, mechanical release, 3NC + 2NC contacts, G1/2 wiring and machine safety control. These functional attributes identify the model more clearly than secondary weight or resistance values. The solenoid controls the locking function, while the mechanical release provides the defined release method and the normally closed contacts communicate guard and lock conditions to the associated safety circuit. An orange LED supports 10 to 115 VAC/VDC indication. For another D4NL H-series guard lock model using a related solenoid-lock configuration, the D4NL-1HFG-B provides a closely related sibling model.
