Procurement managers rarely finalize D4NS-9AF without reviewing Omron SMPS 24V 10A, Omron Sensors and Omron D4Ds K3, ensuring that the chosen component meets budget, compliance, and delivery conditions.
Omron D4NS-9AF Safety Door Switch
The Omron D4NS-9AF Safety Door Switch provides reliable machine-guard monitoring with a 1-Conduit type, with connector
, M12 connector structure, Slow-action, 1NC/1NO contacts, 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 mΞ© max. contact resistance, 300 V rated insulation voltage, 100 MΞ© min. insulation resistance, and a 2 Γ 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 mΞ© max. |
| Rated insulation voltage (Ui) | 300 V |
| Rated frequency | 50/60 Hz |
| Insulation resistance | 100 MΞ© min. |
| Contact gap | 2 Γ 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 | β30 to 70Β°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 mΞ©, and insulation resistance of 100 MΞ©, this unit supports consistent performance even under fluctuating load conditions. It withstands vibration (10β55 Hz) and shock (up to 1,000 m/sΒ²), 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 β30Β°C to 70Β°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.




