Omron D4NS-SK30 Safety Door Switch
Omron D4NS-SK30 is a safety door switch designed for mechanical monitoring of protective doors and movable machine guards. Its Type 2 low-level coded interlock supports guard-position detection, while the direct opening mechanism provides positive mechanical separation for the associated safety function. The switch supports operating speeds from 0.05 to 0.5 m/s and provides 10 mm minimum direct opening travel. IP67 enclosure protection supports industrial machine safety installations where dust or moisture may be present. The D4NS-SK30 belongs to the D4NS Series within the industrial safety door switch range from Omron machine safety products, connecting protective guard position with machine safety and access-monitoring functions.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NS-SK30 |
Omron D4NS-SK30 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-SK30 Safety Door Switch provides mechanical guard-position monitoring for protective doors and movable guards used around industrial machinery. Its Type 2 low-level coded interlock establishes the relationship between the safety switch and guard position, while the direct opening mechanism supports positive mechanical contact separation when the protective door is operated. The switch supports operating speeds from 0.05 to 0.5 m/s and provides 10 mm minimum direct opening travel. Direct opening force is 60 N minimum for standard types and 80 N minimum for high pull-force types. IP67 enclosure protection supports machine safety installations where dust or moisture may reach the switch. The important semantic relationships are safety door switching, mechanical interlocking, guard-position detection, direct opening operation and protective access monitoring. These functional entities describe the D4NS-SK30 more clearly than secondary specifications such as weight, shock or insulation resistance. The switch therefore fits within a machine safety architecture where protective-door movement must be mechanically detected and communicated to the associated safety circuit. The supplied source does not specify a contact configuration or conduit type, so these attributes should not be inferred. For another SK model within the supplied D4NS product family, the D4NS-SK01 provides a related model for comparison.
