Relay unit for thermometer with electric contacts Model RU-1

This is a relay unit to control the temperature to the fixed temperature range being combined with the thermometer with one electric contact or two electric contacts.
The current which flows into the special circuits of the relay unit (delay circuit and self-hold circuit) becomes weak and flows into contact section.   Therefore, sparks do not occur and there are no adhesions and carbons at the contact section 
Even if a slight vibration is given to the contact section, chattering in the switching action does not also occur.

Specifications

Rated