BDS Switch Momentary MS-S1 Spring Return Or On-Off (Trencab) - Black
The BDS Switch Momentary MS-S1 is a robust key operated switch manufactured by Trencab, designed for both spring return momentary and maintained on-off operation. Supplied factory-configured as a momentary switch, it can be converted to an on-off function using the included cam set.
Constructed from glass filled nylon and rated to IP67, this unit is suitable for harsh indoor and outdoor environments. A 570 oval cylinder (LW4) is supplied, making it compatible with many restricted keying systems.
Key Features
- Spring return momentary key switch, convertible to on-off operation.
- Supplied with cam set for maintained on-off function.
- IP67 rated enclosure for external and industrial use.
- Glass filled nylon body and cams for strength and durability.
- Supplied with 570 oval cylinder using LW4 key profile.
- Australian made and owned product.
Specifications
- Item Code: 238001
- Switch Type: Key operated momentary / on-off
- Operating Voltage: 12 Vdc to 48 Vdc or 24 Vac
- Material: Glass filled nylon
- Finish: Black
- Cylinder Type: 570 oval
- Key Profile: LW4
- Keying: Keyed to differ
- Ingress Protection: IP67
- Wiring: 500 mm flying leads
- Country of Manufacture: Australia
Dimensions
| Length | 117 mm |
| Depth | 42.5 mm |
| Width | 47 mm |
What's In The Box
- MS-S1 key switch body.
- 570 oval cylinder (LW4).
- Spring return cam fitted.
- On-off cam set.
- Rubber sealing gasket.
- 2 × stainless steel T20 Torx security screws.
Suitable Uses
- Access control and security switching.
- Emergency release and override applications.
- External installations requiring high ingress protection.
- Sites using restricted or controlled key systems.
Download PDF Resources
Frequently Asked Questions
- Is this supplied as momentary or on-off?
It is supplied as a spring return momentary switch, with cams included to convert it to on-off. - Is this suitable for outdoor installation?
Yes. The IP67 rating makes it suitable for external environments. - Can this be keyed to a restricted system?
The supplied LW4 cylinder is compatible with many restricted keying systems.
Additional Information
- Factory supplied wiring leads reduce installation time.
- Always confirm cam selection before commissioning the switch.
- Commonly specified in Australian commercial and industrial access systems.
