Omron D4BS-K1 Safety Door Switch
Omron D4BS-K1 is a horizontal-mount safety door switch designed for mechanical monitoring of protective doors and movable machine guards. Its horizontal mounting arrangement provides a defined actuator approach for machine layouts where switch orientation is important. A Type 2 low-level coded interlock supports guard-position detection, while the direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel. IP67 enclosure protection supports industrial machine safety installations, and operating speed ranges from 0.1 to 0.5 m/s. The D4BS-K1 belongs to the D4BS series within the machine safety door switch range from Omron machine safety products, connecting protective guard position with the associated safety control system.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4BS-K1 |
Omron D4BS-K1 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 m/s to 0.5 m/s |
| Direct opening force | 19.61 N min |
| Direct opening travel | 20 mm min |
| Contact resistance | 25 mΩ max. |
| Rated insulation voltage (Ui) | 600 V |
| Rated frequency | 50/60 Hz |
| Insulation resistance | 100 MΩ min. |
| Contact gap | 2 × 2 mm min |
| Vibration resistance | Malfunction 10 to 55 Hz, 0.65 mm single amplitude |
| Shock resistance | Destruction: 1,000 m/s2 min. Malfunction: 300 m/s2 min |
| Ambient operating temperature | −40 to 80°C |
| Ambient operating humidity | 95% max |
| Weight | Approx. 285 g |
The Omron D4BS-K1 Safety Door Switch uses a horizontal mounting arrangement for mechanical monitoring of protective doors and movable machine guards. The mounting orientation defines how the switch and actuator are positioned around the guarded access point. A Type 2 low-level coded interlock supports mechanical guard-position detection, while IP67 enclosure protection suits industrial machine safety installations where protection against dust and moisture is required.
The direct opening mechanism provides 19.61 N minimum force with 20 mm minimum travel, and operating speed ranges from 0.1 to 0.5 m/s. Horizontal mounting is the primary model-specific relationship because it distinguishes the D4BS-K1 by installation orientation rather than by secondary electrical values. Combined with direct opening operation and the Type 2 interlock, it connects this model with safety door switches, protective guards, machine access monitoring and industrial safety circuits. When the guard moves from its monitored position, the switch provides the mechanical detection required by the associated safety control architecture. This creates a clear semantic path from D4BS-K1 to horizontal mounting, safety door switching, guard detection and machine protection. The supplied source does not specify a contact configuration or conduit format, so these details should not be inferred. For another mounting-key option within the supplied D4BS product family, the D4BS-K1 remains the exact horizontal-mount reference for this configuration.
