Omron D4BS-15FS Safety Door Switch
Omron D4BS-15FS is a 1-conduit safety door switch designed to detect the position of movable machine guards and protective access doors. Its Type 2 low-level coded interlock provides mechanical guard-position monitoring, while the direct opening mechanism supports positive contact opening when the associated guard is operated. The switch provides IP67 enclosure protection and supports operating speeds from 0.1 to 0.5 m/s. A 19.61 N minimum direct opening force and 20 mm minimum opening travel support its mechanical safety function in guarded machinery. The D4BS-15FS belongs to the D4BS series within the safety door switch range from Omron industrial safety products.
| Brand | Omron |
| Product Type | Safety Door Switch |
| Model Number | D4BS-15FS |
Omron D4BS-15FS Safety Door Switch - Technical Specifications
| Specification | Value |
|---|---|
| Type | 1-conduit type |
| 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-15FS Safety Door Switch uses a Type 2 interlock with low-level coded operation and provides IP67 enclosure protection. It supports guard movement speeds from 0.1 to 0.5 m/s. Its direct opening mechanism provides a minimum opening force of 19.61 N and minimum opening travel of 20 mm, supporting mechanical contact opening when the associated protective guard is operated. Contact resistance is rated at 25 mΩ maximum, while the rated insulation voltage reaches 600 V. Insulation resistance is specified at 100 MΩ minimum with a 2 × 2 mm minimum contact gap.
The switch has a rated frequency of 50/60 Hz and malfunction vibration resistance from 10 to 55 Hz at 0.65 mm single amplitude. Shock resistance reaches 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. Its specified ambient operating temperature extends from −40 to 80°C, while ambient operating humidity is rated up to 95%. These electrical, mechanical, and environmental characteristics support guard-position detection through its 1-conduit construction. For applications requiring a defined G1/2 conduit outlet while retaining the same supplied operating speed, opening characteristics, electrical ratings, protection level, and environmental range, the D4BS-25FS provides the closest related D4BS model.
