Distribution splitter troughs splits feeder circuit conductors into multiple branch circuit conductors. BEL SBT100 SBB Block Splitter Box, 600 V, 125 A, 14 to 1/0 AWG Wire, 6/70 A Bran. Our flexible distribution boxes enable reliable, decentralized signal transmission and power transmission up to protection class IP67 – wherever passive distribution boxes are required. 75° C conductor ampacity permitted. Smooth, continuously welded seams ground smooth. Door stiffeners are provided where required for increased strength and rigidity.