BREAKER MOUNTING KITS for Electrical Distributor Applications Main or subfeed breaker mounting kit designed for original P1 interiors. Suitable for mounting circuit breaker types BL, BLH, and HBL in 3-phase systems with a maximum rating of 100A. This kit includes all necessary mounting hardware but does not include the breaker itself. It is not compatible with revised P1 panels produced after December 2014. Ideal for electrical distributors and lighting solutions requiring reliable breaker mounting accessories. Specifications Manufacturer: Siemens Manufacturer Part #: MBKBL3 Application: Lighting Panel Accessories Product Weight: 2.2490 lbs Dimensions (L x W x H): 13.7 in x 8.6 in x 4.5 in Country of Origin: United States Made in USA: Yes Order Minimum: 1 UPC: 783643271050 Features Compatible with original P1 interiors only Supports circuit breakers BL, BLH, and HBL in 3-phase systems Includes all mounting hardware required for installation Rated for up to 100A maximum Does not include circuit breaker Not suitable for revised P1 panels after December 2014