Bussmann CPDB-1 Champ-Pak Power Distribution Block Cover Brand: Bussmann. Part Number: CPDB-1. Bussmann Champ-Pak Power Distribution Block Cover, Low Profile, 1 Pole, For Use With: PDB/163 Series Power Distribution Blocks, 120 VAC, 42 W, (4) 3/4 in NPT Hub, Copper-Free Aluminum, 2.1 in L x 4.14 in W x 2.7 in H. Additional Description: BUSS-CPDB-1 (N) 163 SER POWER BLK. COVER. Catalog Description: Eaton Bussmann series cover, Low-profile, 120 Vac, 42W, Copper-free aluminum fixture housing and door frame assembly, borosilicate glass refractor lens, light sheet aluminum reflector material, Single-pole..