ABB VD4 Electromechanical Lock 1YHB00000000027
Product ID: 1YHB00000000027
Catalog Description: Electromechanical safety lock for YL1, RL1, and RLE1 operating mechanisms, designed to block circuit breaker closing when de-energized.
Long Description: Electromechanical lock compatible with ABB VD4 EL vacuum circuit breakers, used with YL1, RL1, and RLE1 operating mechanisms. When the auxiliary supply is not energized, the lock mechanically prevents unintended circuit breaker closing, ensuring enhanced operational safety. Rated for 110 V auxiliary voltage and suitable for VD4 EL breakers with serial number type 1YHP.






