Sensata Cynergy3 Process Pump Controller, 250 V ac, +45°C

Fits to pump body or pipe work (pipe diameter 20 to 200mm)
A rapid rise past the set-point temperature of 45°C (if the inlet water level falls below the centre line of the inlet) of any centrifugal type pump, will cause this device to react.
High power switch cuts off the electrical supply to protect the pump from dry running, seal overheating and other damage
Switch rating: 16A/250V ac
Manual reset restarts the pump
Condition indicator light
Dimensions; H46mm, W46mm, L72mm