Allen-Bradley 140MT Motor Protectors

Allen-Bradley 140MT motor protectors are compact motor protection circuit breakers used for branch-circuit and overload protection on industrial motors. Catalog numbers after 140MT- typically start with a frame code such as C3E, then a trip-band letter and amp digits (B10, B16, B25, C10, C20, and similar). Matching 140MT-C auxiliary contacts (AFA and ASA styles) add signaling contacts to the protector body. Check the trip current against the motor FLA and confirm the auxiliary contact arrangement before you reorder. East Coast Compactor keeps common 140MT frames and auxiliaries on the shelf and ships from Northwood NH. We sell as an independent supplier and do not claim authorized-distributor status or factory warranty.