High Limit safety switch for heater in older pneumatic hot tub control systems.
Details:
- Single pole rated at 25 amps
- temperature rating set at 121°F.
- Best results are obtained when the bulb is installed in a dry well or groove tube at or immediately before the heater
- 12" capillary length, 1/4" bulb thickness, 3-1/2" bulb length.
- Brand: Eaton Mears
- Not suitable for any application other than hot tub spa control system
This is a safety device! If it is found to be out of calibration, do not attempt to perform a field adjustment! Replace bad hi limit with a new one.