The Bulletin 140MT catalog series is assigned primarily to motor protection circuit breaker products. Recorded product roles include Motor Protection Circuit Breaker; Motor Circuit Protector. Each listing keeps its complete manufacturer part number and available specifications, so models and accessories remain separate rather than being treated as substitutes.
Within the Bulletin 140MT series, match the complete manufacturer part number; suffixes and separators can identify a different variant.
For Bulletin 140MT, compare the recorded UPC, Frame Size, Application, Breaking Capacity fields on the individual product pages.
For Bulletin 140MT, use the Motor Protection Circuit Breaker title and specifications to separate complete devices from modules, accessories or replacement parts.