Omron D4GS-N1R Safety Door Switch
The Omron D4GS-N1R Safety Door Switch provides , and a Type 2 interlock featuring Low level coded coding for enhanced operator protection. Built to withstand harsh industrial environments, it offers a robust IP67 protection rating, supports 0.1 to 0.5 m/s operating speed, and ensures dependable performance with a 10 mm min direct opening travel. With 300 mΩ max. (with 1 m cable) ; 500 mΩ max. (with 3 m cable); 700 mΩ max. (with 5 m cable) contact resistance, 250 V rated insulation voltage, 100 MΩ min. insulation resistance, and a 2 × 2 mm min contact gap, it delivers safe and consistent operation. Manufactured by Omron and listed under Omron Safety Door Switch solutions, this model belongs to the D4GS Series.

| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4GS-N1R |
Omron D4GS-N1R 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 D4NS-SK30 Safety Door Switch is equipped with a Type 2 interlock mechanism and low-level coding, providing standardized safety in machine guarding applications. Its housing meets the stringent IP67 protection rating, ensuring full resistance to dust and water ingress, making it reliable even in harsh manufacturing environments.
Operating within a speed range of 0.05 to 0.5 m/s, this model withstands both shock (up to 1,000 m/s²) and vibration (10–55 Hz), offering rugged performance for continuous use. The direct opening force of 80 N (high pull-force type) combined with a contact gap of 2 × 2 mm supports fail-safe mechanical separation. It features 10 mm of direct opening travel, a 300 V insulation voltage, and 25 mΩ contact resistance, ensuring stable and compliant electrical performance.
With a compact weight of just 96 g and high insulation resistance of 100 MΩ, the D4NS-SK30 is a trusted choice for OEMs and automation engineers seeking reliable safety solutions. Discover complete technical specifications and accessory options on the official Omron product page: Omron D4NS-SK30 Safety Door Switch.




