Omron D4GS-NK1 Safety Door Switch
The Omron D4GS-NK1 Safety Door Switch provides Horizontal mounting, 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 0.1 to 0.5 m/s operating speed, and ensures dependable performance with a 10 mm min direct opening travel. With 300 mΩ max. (with 1 m cable) ; 500 mΩ max. (with 3 m cable); 700 mΩ max. (with 5 m cable) contact resistance, 250 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 D4GS Series.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4GS-NK1 |
Omron D4GS-NK1 Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | Horizontal mounting |
| Interlock type | Type 2 |
| Coding level | Low level coded |
| Degree of protection | IP67 |
| Operating speed | 0.1 to 0.5 m/s |
| Direct opening force | 60 N min |
| Direct opening travel | 10 mm min |
| Contact resistance | 300 mΩ max. (with 1 m cable) ; 500 mΩ max. (with 3 m cable); 700 mΩ max. (with 5 m cable) |
| Rated insulation voltage (Ui) | 250 V |
| Rated frequency | 50/60 Hz |
| Insulation resistance | 100 MΩ min. |
| Contact gap | 2 × 2 mm min |
| Vibration resistance | Malfunction 10 to 55 Hz, 0.35 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 |
| Cable | UL2464 No. 22 AWG, finishing O.D.: 7.2 mm |
| Weight | Approx. 120 g |
Designed for space-limited machinery, the Omron D4GS-NK1 Safety Door Switch features a horizontal mounting configuration with a Type 2 interlock and low level coded security. Offering an IP67 degree of protection, it resists dust, water, and vibration, delivering consistent reliability in tough industrial conditions. Its slim design makes it ideal for advanced automation equipment requiring compact safety solutions.
The D4GS-NK1 operates smoothly at speeds between 0.1 to 0.5 m/s and withstands shocks up to 1,000 m/s² and vibrations from 10 to 55 Hz. It delivers a direct opening force of 60 N minimum and a direct opening travel of 10 mm minimum, ensuring secure mechanical separation during faults. With a rated insulation voltage of 250 V and insulation resistance of 100 MΩ minimum, this switch provides dependable electrical performance. Built with a durable UL2464 No. 22 AWG cable and weighing approximately 120 g, the Omron D4GS-NK1 remains a trusted choice for engineers and OEMs.
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