Liquid expansion type, copper bulb and capillary. Double-pole double throw contacts, 16A at 400VAC. Accuracy ±1% of full scale. Differential 2,5% of full scale. Adjusting knob accessible by removal of the cover.
Protected enclosed models, with double-poles double-throw switch and heating indicator light.
Voltage 230V 1P (3500W max.).
Optional 230V 3P supply (6000W max.).