Hasco Relays and Electronics International Corp.’s safety relays are certified by UL for the US and Canada, with most having TUV ratings. Safety Relays have forcibly guided contacts to prevent NO and NC contacts from operating at the same time during contact welding. Forcibly guided relays are forcibly and mechanically guided to change their position; so that the problem does not occur. This ensures that both the NO and NC contacts always work opposite with each other. They come in sealed for wave soldering and washing, thereby allowing the relays to be efficiently implemented on any assembly line
