Omron D4JL-2RFA-C5 Safety Door Switch
Omron D4JL-2RFA-C5 is a guard lock safety door switch with a special release key for controlled access to protected machinery. It uses mechanical locking with solenoid release, while the 3NC + 3NC contact configuration provides multiple normally closed switching paths for guard and lock status monitoring. A G1/2 conduit supports machine wiring, and a Type 2 low-level coded interlock provides mechanical guard-position detection. The direct opening mechanism delivers 60 N minimum force with 15 mm minimum travel. The D4JL-2RFA-C5 belongs to the D4JL Series within the guard lock safety switch range from Omron industrial safety products, supporting protective doors, machine access control and safety interlocking.

| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4JL-2RFA-C5 |
Omron D4JL-2RFA-C5 Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | Special release key |
| Lock and release types | Mechanical lock Solenoid release |
| Contact configuration | 3NC+3NC |
| 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 | 15 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 80 m/s2 min. |
| Ambient operating temperature | −10 to +55°C |
| Ambient operating humidity | 95% max |
| Weight | Approx. 650 g |
The Omron D4JL-2RFA-C5 Guard Lock Safety Door Switch uses mechanical locking with solenoid release for controlled access through protective machine doors. A special release key provides the defined release arrangement, while the 3NC + 3NC contact configuration offers multiple normally closed switching paths for monitoring guard and lock conditions. A G1/2 conduit supports machine wiring, and the Type 2 low-level coded interlock provides mechanical guard-position detection. The direct opening mechanism delivers 60 N minimum force with 15 mm minimum travel, while IP67 protection supports industrial machine safety installations. The defining relationships for this model are mechanical guard locking, solenoid release, special release key, 3NC + 3NC contacts and protective access control. These attributes create useful product context without relying on weight or secondary electrical specifications. The mechanical lock secures the guard, while the solenoid controls release and the normally closed contacts communicate status to the associated machine safety circuit. Its 3NC + 3NC arrangement is particularly useful for distinguishing this D4JL variant from models with mixed NC and NO contact configurations. For another G1/2 D4JL model with a 3NC + 3NC contact arrangement but using solenoid locking with mechanical release, the D4JL-2RFG-C5 provides a closely related comparison.


