Omron D4NS-SK01 Safety Door Switch
Omron D4NS-SK01 is a safety door switch designed for protective-door and machine guard monitoring in industrial safety systems. It uses a Type 2 low-level coded interlock to detect guard position and supports operating speeds from 0.05 to 0.5 m/s. The direct opening mechanism provides 60 N minimum force for standard types and 80 N minimum for high pull-force types, with 10 mm minimum travel. IP67 enclosure protection supports installations where dust and moisture may be present. The D4NS-SK01 belongs to the D4NS series within the safety door switch range from Omron machine safety products, supporting protective access and guard interlocking applications.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NS-SK01 |
Omron D4NS-SK01 Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| 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-SK01 Safety Door Switch uses a Type 2 low-level coded interlock for detecting the position of protective machine guards. Its direct opening mechanism provides 60 N minimum force for standard types and 80 N minimum for high pull-force types, with 10 mm minimum travel. This positive opening action supports mechanical contact separation when the protective door moves from its monitored position. IP67 enclosure protection supports machine safety installations where dust and moisture resistance is important.
The switch supports operating speeds from 0.05 to 0.5 m/s, making it suitable for mechanical guard-monitoring arrangements within the specified movement range. Rather than relying on secondary electrical or environmental values, the important selection relationships are the D4NS series, Type 2 interlock, low-level coding, direct opening mechanism and protective-door monitoring function. These attributes connect the D4NS-SK01 with safety door switches, machine guards, access protection, interlock systems and machine safety control. It can therefore be considered where an industrial machine requires guard-position detection and positive opening operation as part of its safety architecture. The supplied data does not specify a contact configuration or conduit type for this model, so these attributes should not be assumed. For another D4NS model in the supplied product range with a defined slow-action MBB 2NC/1NO contact configuration, the D4NS-1FF provides a related option.
