Omron D4NL-2DFG-B Safety Door Switch
Omron D4NL-2DFG-B is a 24 VDC guard lock safety door switch using solenoid locking with mechanical release for controlled machine access. Its 2NC + 2NC contact configuration provides normally closed switching paths for monitoring protective-door and lock conditions, while the G1/2 conduit supports machine wiring. A Type 2 low-level coded interlock provides mechanical guard-position detection, with 60 N minimum direct opening force and 10 mm minimum travel. IP67 enclosure protection supports industrial machine safety installations requiring guard locking. The D4NL-2DFG-B belongs to the D4NL Series within the machine guard lock switch range from Omron industrial safety products, connecting protective doors, controlled access and safety circuit monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NL-2DFG-B |
Omron D4NL-2DFG-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 | 2NC+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-2DFG-B Guard Lock Safety Door Switch uses a 24 VDC solenoid lock with mechanical release for controlled access through protective machine doors. Its 2NC + 2NC contact configuration provides normally closed switching paths for monitoring both guard and lock conditions. A G1/2 conduit supports machine wiring, while the Type 2 low-level coded interlock provides mechanical guard-position detection. The direct opening mechanism delivers 60 N minimum force with 10 mm minimum travel, and IP67 protection supports industrial machine safety installations. The primary model relationships are solenoid guard locking, mechanical release, 2NC + 2NC contacts, G1/2 wiring and protective access monitoring. These attributes clearly position the D4NL-2DFG-B within machine guarding and safety interlock applications without relying on secondary specifications. The solenoid controls guard locking, while the normally closed contact paths communicate guard and lock conditions to the associated safety circuit. An orange LED supports 10 to 115 VAC/VDC indication for visible operating status. Locking principle, conduit format and contact configuration provide useful selection context within the D4NL family. For another G1/2 D4NL model with 2NC + 2NC contacts but using mechanical locking with solenoid release, the D4NL-2DFA-B provides the closest functional comparison.
