5012 dpdt 8a safety relays finder 501290121000 these finder 5012 dpdt co relays have forcibly guided contacts according to en 50205 2002 type b to use them in this way select one contact set to be normally open no and the other contact set to be normally closed nc in the event of the nc contacts welding shut the no contact will not be able to close finder 501290121000 pcb mount relay 12vdc 8a dpdt agni