Virtual Valve Museum

Virtual Valve Museum

HomeFull List

This is an archive website. It will not receive any updates, additions or corrections.

CV190 thermal delay switch

Size This switch measures 110x48mm overall and has a 4 pin base.


Heater voltage 4V
Heater current 1.5A
Time delay 75 seconds
Current rating of contacts
At 250V DC 6A
At 1000V DC 200mA

NB the contacts are for closing a circuit only. They are not designed to break contact when current is flowing.

Inside view

Pin Function
1 Switch contact
2 Switch contact
3 Heater
4 Heater