Ensure secure operation of your circuit breakers with the CUTLER-HAMMER BHLW1-10 Handle Lockdog. This accessory is designed for 1P BR & BQL type circuit breakers, providing a reliable locking mechanism. It comes new and in original packaging, ready for immediate installation..The CUTLER-HAMMER BHLW1-10 is a handle lockdog accessory designed for 1-pole circuit breakers of the BR and BQL types. It is a new item and weighs 0.60 KGS.