Thermostat with 0 – 45℃ temperature range, unipole, for Pahlen electric heaters

Thermostat with graduated knob, single-pole, for installation in a junction box. The sensor is a flask that ends with a movable membrane. When the liquid in the flask is heated, excess pressure is transferred to the membrane, which deforms and opens the contact group. The opening temperature can be changed with the adjusting screw.

This model is without a connection to earth. For the latest model with connection to earth, see #632009.