XR351 is an electro-mechanical relay for supervision and monitoring of a trip circuit, during both open and closed CB position, as well as for preclosing supervision. The XR351 has 3 attracted armature elements. It incorporates a time delay on de-energization, to keep the relay in an operated condition, during temporary reduction in the battery voltage.
Supervision and ensuring the integrity of the trip circuit of a breaker
Continuous supervision, during both, open and closed position of circuit breaker
Preclosing supervision to prevent circuit breaker from being closed where the trip relay has not been reset
Consistent positive action
Complies with appropriate requirements of IEC 60255
Epsilon draw-out case