Omron D4NS-2CF-SJ Safety Door Switch
Omron D4NS-2CF-SJ is a high pull-force safety door switch designed for protective machine guard monitoring. Its 1-conduit construction uses a G1/2 connection, while the slow-action 2NC/1NO contact configuration provides 2 normally closed safety paths and 1 normally open status path. A Type 2 low-level coded interlock supports mechanical guard-position detection. The high pull-force type provides 80 N minimum direct opening force with 10 mm minimum travel, while IP67 protection supports industrial machine installations. The D4NS-2CF-SJ belongs to the D4NS Series within the safety door interlock switch range from Omron machine safety products, supporting protective doors, machine guards and safety circuit monitoring.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4NS-2CF-SJ |
Omron D4NS-2CF-SJ Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 1-Conduit type (High pull-force type) |
| Contact configuration | Slow-action,2NC/1NO |
| Conduit outlet/Connector | G1/2 |
| 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-2CF-SJ Safety Door Switch uses a 1-conduit high pull-force design with slow-action 2NC/1NO contacts for protective machine guard monitoring. Its 2 normally closed contacts provide safety switching paths, while the normally open contact can support guard status indication within the associated control circuit. A G1/2 conduit provides the wiring connection, and a Type 2 low-level coded interlock supports mechanical guard-position detection. As a high pull-force type, the switch provides 80 N minimum direct opening force with 10 mm minimum travel. IP67 enclosure protection supports industrial machine safety installations where dust or moisture may be present. The key relationships for this model are high pull-force operation, 2NC/1NO contacts, G1/2 wiring, direct opening and protective-door monitoring. These attributes connect the D4NS-2CF-SJ with safety door switches, machine guards, interlock systems and safety control circuits without relying on low-value specifications. Its high pull-force configuration is especially useful for distinguishing this version within the D4NS family. The direct opening mechanism mechanically links guard movement with safety contact separation. For another D4NS model using a G1/2 connection and slow-action 2NC/1NO contact arrangement, the D4NS-2CF provides the closest related model from the supplied product range.
