REDUNDANT RELAY SWITCH Russian patent published in 2020 - IPC H01H47/00 

FIELD: automation and telemechanics devices.

SUBSTANCE: invention relates to automatics and telemechanics devices and can be used in critical equipment with high reliability requirements, for example in control devices of rocket-and-space equipment. Redundant relay switch comprises three electromagnetic relays with closing contacts, switching contact group of second relay, first and second buses. Remote switch is introduced, the windings of which are connected to one of the busbars.

EFFECT: higher possibility of switching voltage to output at failure of any two relays.

1 cl, 1 dwg