In most procurement cycles, D4NS-4BF is considered with Omron SMPS 24V 10A, Omron Sensors and Omron D4Ds K3, giving decision-makers confidence that theyβve chosen the most dependable component.
Omron D4NS-4BF Safety Door Switch
The Omron D4NS-4BF Safety Door Switch provides reliable machine-guard monitoring with a 1-Conduit type, M20 structure, Slow-action,2NC 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-4BF |
Omron D4NS-4BF Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 1-Conduit type |
| Contact configuration | Slow-action,2NC |
| 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 |
The Omron D4NS-4BF Safety Door Switch features a slow-action, 2NC contact configuration, providing reliable redundant disconnection for safety-critical systems. Integrated with a Type 2 interlock and low-level coding, it offers strong protection against tampering while maintaining consistent safety circuit integrity. The M20 conduit outlet supports robust cable connection in industrial enclosures, and the 10 mm direct opening travel ensures mechanical separation during door access events.
Built for harsh environments, the D4NS-4BF operates reliably under vibrations of 10β55 Hz and shock forces up to 1,000 m/sΒ². It features an IP67-rated enclosure for protection against dust and water, and withstands extreme operating temperatures from β30Β°C to 70Β°C and humidity up to 95%. Its electrical performance is backed by a 300 V rated insulation voltage and 100 MΞ© insulation resistance, ensuring long-term stability in industrial automation systems. Weighing approximately 96 g, the Omron D4NS-4BF is a trusted safety component used in conveyors, packaging machines, and robotics-based production lines.
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