Emergency stop safety relay SR4P2A1B24M

for light curtain1 NC2 NO

1、Relay output: 2 normally open contacts, 1 normally closed auxiliary contact； 2、Equipped with automatic and monitorable manual reset function； 3、With monitorable suppression function (dual channel effective)； 4、Provide feedback control loop for monitoring external contactors/relays。 This relay meets the following safety requirements： 1、Redundant circuits with self monitoring in the circuit； 2、Even if one component is damaged, the safety function remains effective; 3、The safety function of the relay can be automatically detected by correctly opening and closing during each switching cycle.