The Belimo S1A auxiliary switch is designed to indicate when a desired position of a damper is reached or to interface additional controls for a specific control sequence.
The S1A is a modular unit that mounts onto LM, NM, AM, and GM direct-coupled actuators, locked into place by guiding grooves on the sides of the actuator. The included driver disk is attached to the actuator clamp and offers direct transmission of the actuator position to the micro switch cams. The switching points can be set over the full scale of 0 to 1 simply by adjusting the slotted discs.
Product Specifications
| Number of
Switches |
1 SPDT 2 |
| Weight |
4.6 oz [130
g] |
| Switching
Capacity |
3A (0.5A), 250
VAC |
| Switching
Point |
Adjustable over
Full Rotation (0° to 95°) |
| Pre-Setting |
With Scale
Possible |
| Humidity |
5 to 95% RH
non-condensing |
| Ambient
Temperature |
-22°F to 122°F
[-30°C to +50°C] |
| Storage
Temperature |
-40°F to 176°F
[-40°C to 80°C] |
| Housing |
NEMA 2 /
IP54 |
| Housing
Rating |
UL94-5VA |
| Servicing |
Maintenance
Free |
| Agency
Listings |
cULus acc. to
UL60730-1, CE according to 73/23/EEC |
| Quality
Standard |
ISO 9001 |