Siemens MBR1 Backfed Main Breaker Hold Down KitCondition:* New Stock, In OEM Packaging. As Pictured.Additional Notes:* Main breaker hold-down kit is designed for use to hold down circuit breakers in a main breaker load center* Retainer is ANSI certified and CSA and UL listed* Use to hold down circuit breakers in a main breaker load center* For use on type QP and MP circuit breakers* Accepted in 2 to 8 circuit load centers as well as type EQ load centers onlySiemensMBR1