Maintenance teams planning replacements for D4NS-4AF frequently review Omron Photoelectric Sensor, Omron Sensors and Omron D4Ds K3 to prevent downtime, checking availability and compatibility with existing systems.
Omron D4NS-4AF Safety Door Switch
The Omron D4NS-4AF Safety Door Switch provides reliable machine-guard monitoring with a 1-Conduit type, M20 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-4AF |
Omron D4NS-4AF Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 1-Conduit type |
| Contact configuration | Slow-action, 1NC/1NO |
| Conduit outlet/Connector | M20 |
| 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 |
D4NS-4AF is built for industrial environments where mechanical reliability is critical. It offers a 1NC/1NO slow-action contact configuration and a Type 2 interlock that ensures safe access to machinery. The M20 conduit outlet makes electrical wiring simple and secure. With a direct opening force of 60 N for standard types and 80 N for high pull-force types, D4NS-4AF guarantees consistent actuation under stress.
The D4NS-4AF model is protected by an IP67-rated housing, capable of resisting dust and water. It performs reliably under vibrations from 10 to 55 Hz and shocks up to 1,000 m/sΒ²>. The switch operates between β30Β°C and 70Β°C and in humidity up to 95%. Electrical safety is supported by a 300 V insulation voltage and 100 MΞ© minimum insulation resistance. Engineers prefer D4NS-4AF for its durable design and stable long-term performance in interlock control systems.
D4NS-4AF is trusted across OEM panels, conveyor guarding, and robotic enclosures. Its lightweight body at just 96 g makes installation fast and flexible.
