Omron D4NS-6DF Safety Door Switch
The Omron D4NS-6DF Safety Door Switch provides 2-Conduit type, 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 0.05 to 0.5 m/s operating speed, and ensures dependable performance with a 10 mm min. direct opening travel. With 25 mΩ max. contact resistance, 300 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 D4NS Series.

| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NS-6DF |
Omron D4NS-6DF Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 2-Conduit type |
| Contact configuration | Slow-action,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 | <Standard type> 60 N min.; <High pull-force type> 80 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: 300 m/s2 min |
| Ambient operating temperature | −30 to 70°C (with no icing) |
| Ambient operating humidity | 95% max |
| Weight | Approx. 96 g |
Built for reliability, the Omron D4NS-6DF Safety Door Switch includes a slow-action contact configuration with 3NC outputs, providing triple redundancy for high-integrity safety circuits. The Type 2 interlock system with low-level coding ensures compliance with safety regulations while deterring tampering. Its 2-conduit G1/2 configuration offers flexible wiring options and easy panel integration, and the 10 mm direct opening travel ensures rapid mechanical disengagement during emergencies.
This unit performs reliably in harsh conditions, enduring vibration up to 55 Hz and shock forces of 1,000 m/s². With a rated insulation voltage of 300 V and contact resistance under 25 mΩ, the switch maintains stable electrical performance. A high insulation resistance of 100 MΩ, along with an IP67-rated enclosure, ensures long-lasting durability even in high-moisture or dusty environments. The D4NS-6DF operates effectively from −30°C to 70°C and in up to 95% relative humidity, making it a dependable choice for packaging, press automation, robotic enclosures, and material handling systems. Weighing approximately 96 g, it balances compact form with industrial-grade safety performance.




