Auxiliary relay and Trip Relay is an electro-mechanical relay that operates on attracted armature principal designed to IEC60255. Auxiliary relay is available in 3 NO contacts and 2 CO contacts with self reset contacts type with or without flag. Trip relay low burden is available in 3 NO and 3 NC contacts. Trip relay high burden is available in 3 NO and 2 NC contacts with hand reset contacts type. Auxiliary Relay and Trip Relay is used in high speed operation which suits the requirements like transmission and industrial applications