Allen-Bradley 140U-J6D3-D25 Molded Case Circuit Breaker is a 3-pole, 250 A J-frame MCCB (Bulletin 140U) with bolt-on mounting and a thermal-magnetic trip unit that combines fixed thermal with an adjustable magnetic element. It is rated for up to 600 V and delivers up to 65 kA interrupting capacity at 480 V, featuring load-side lug terminals for straightforward panel wiring and a non-interchangeable trip characteristic consistent with 140U devices. Note that this specific model is listed as discontinued in many catalogs.
