Omron D4GS-N1R-3 Safety Door Switch
Omron D4GS-N1R-3 is a slim safety door switch designed for protective guard monitoring where compact installation is important. Its Type 2 low-level coded interlock provides mechanical guard-position detection, while the direct opening mechanism supports positive contact separation when the machine door is opened. The switch operates from 0.1 to 0.5 m/s and provides 60 N minimum direct opening force with 10 mm minimum travel. IP67 enclosure protection supports industrial machine safety installations exposed to dust or moisture. The D4GS-N1R-3 belongs to the D4GS series within the slim safety door switch range from Omron industrial safety products, supporting compact machine guard and access-door monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4GS-N1R-3 |
Omron D4GS-N1R-3 Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Interlock type | Type 2 |
| Coding level | Low level coded |
| Degree of protection | IP67 |
| Operating speed | 0.1 to 0.5 m/s |
| Direct opening force | 60 N min |
| Direct opening travel | 10 mm min |
| Contact resistance | 300 mΩ max. (with 1 m cable) ; 500 mΩ max. (with 3 m cable); 700 mΩ max. (with 5 m cable) |
| Rated insulation voltage (Ui) | 250 V |
| Rated frequency | 50/60 Hz |
| Insulation resistance | 100 MΩ min. |
| Contact gap | 2 × 2 mm min |
| Vibration resistance | Malfunction 10 to 55 Hz, 0.35 mm single amplitude |
| Shock resistance | Destruction: 1,000 m/s2 min. Malfunction: 300 m/s2 min |
| Ambient operating temperature | −30 to 70°C (with no icing) |
| Ambient operating humidity | 95% max |
| Cable | UL2464 No. 22 AWG, finishing O.D.: 7.2 mm |
| Weight | Approx. 120 g |
The Omron D4GS-N1R-3 Safety Door Switch provides a slim guard-monitoring solution for machines where mounting space is limited. Its Type 2 low-level coded interlock provides mechanical protective-door detection, while the direct opening mechanism supports positive contact separation when the guard is operated. IP67 enclosure protection supports industrial installations where dust or moisture may reach the switch. Operating speed ranges from 0.1 to 0.5 m/s, with 60 N minimum direct opening force and 10 mm minimum travel.
The D4GS series connects this model with compact safety door switching, machine guard detection, protective access monitoring and industrial safety control. Its integrated cable arrangement supports connection to the safety circuit without requiring a separate conduit entry on the switch body. For selection purposes, the important attributes are its slim construction, Type 2 interlock, low-level coding, direct opening mechanism and cable-based connection. These characteristics are more useful for model relevance than adding weight, humidity or other secondary specifications to the page. When the protective guard changes position, the switch provides the mechanical detection needed by the associated safety circuit according to the machine design. For another N1R configuration in the D4GS family with the same primary guard-monitoring and direct-opening characteristics, the D4GS-N1R-5 provides the closest related model.
