Omron D4GS-N4R Safety Door Switch
Omron D4GS-N4R is a slim safety door switch for monitoring protective doors and movable guards on industrial machinery. Its Type 2 low-level coded interlock provides mechanical guard-position detection, while the direct opening mechanism supports positive contact separation when the guard moves from its monitored position. The switch provides 60 N minimum direct opening force with 10 mm minimum travel and supports operating speeds from 0.1 to 0.5 m/s. IP67 protection suits compact industrial machine safety installations. The D4GS-N4R belongs to the D4GS series within the protective door switch range from Omron machine safety products, connecting guard-position detection with machine safety and access-monitoring functions.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4GS-N4R |
Omron D4GS-N4R 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-N4R Safety Door Switch provides slim protective-door monitoring for industrial machines where available mounting space is limited. Its Type 2 low-level coded interlock supports mechanical guard-position detection, while the direct opening mechanism provides positive contact separation when the protective guard is operated. IP67 enclosure protection supports machine safety installations where the switch may encounter dust or moisture during normal operation.
The D4GS-N4R supports operating speeds from 0.1 to 0.5 m/s and provides 60 N minimum direct opening force with 10 mm minimum travel. Its main entity relationships are slim safety door switch, protective guard, direct opening mechanism, machine access monitoring and safety interlock. These concepts provide stronger model context than repeating secondary values such as contact resistance or weight. The integrated cable arrangement connects the switch with the associated machine safety circuit, while the compact D4GS body supports installations where space around the guard is restricted. When a protective door changes position, the mechanical interlock provides the detection required by the safety control architecture. Within the D4GS product family, model selection can therefore focus on the specific variant and required cable arrangement while retaining the common guard-monitoring function. For another N4R version in the supplied product range with closely related operating characteristics, the D4GS-N4R-5 provides a relevant related model.
