Omron D4NS-9AF Safety Door Switch
The Omron D4NS-9AF Safety Door Switch provides 1-Conduit type, with connector
, 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-9AF |
Omron D4NS-9AF Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 1-Conduit type, with connector |
| Contact configuration | Slow-action, 1NC/1NO |
| Conduit outlet/Connector | M12 connector |
| 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 |
The Omron D4NS-9AF Safety Door Switch delivers a balance of safety and convenience with its slow-action, 1NC/1NO contact configuration that ensures circuit integrity during switch operation. Engineered with a Type 2 interlock mechanism and low-level coded actuator, it helps prevent unauthorized access to hazardous zones while simplifying integration via an industry-standard M12 connector. The 10 mm direct opening travel offers a rapid mechanical break, which is essential in emergency stop situations.
With a rated insulation voltage of 300 V, contact resistance below 25 mΩ, and insulation resistance of 100 MΩ, this unit supports consistent performance even under fluctuating load conditions. It withstands vibration (10–55 Hz) and shock (up to 1,000 m/s²), making it highly reliable in high-motion environments. The IP67-rated enclosure ensures protection from dust and water ingress, allowing use in washdown or harsh industrial settings. Operating between −30°C to 70°C with up to 95% humidity, and weighing only 96 g, the D4NS-9AF is a trusted safety solution in packaging, robotic cells, and heavy equipment sectors.
