Tsurumi fit thermal protection into all submersible pumps that have direct-on-line motors.
It will sense excess heat caused by overcurrent or run-dry conditions which means that no extra thermal protection circuit is required in the starter or control panel.
It not only cuts off the motor circuit automatically but will also reset by itself. When the motor cools down to a safe operating temperature, the motor restarts.
Selected sewage pumps can be equipped with PTC thermistors for Atex applications when operating with a VFD.