The ABB XT4NU3200AFF00NXXX is a 3-pole molded case circuit breaker from the XT4N 250 A frame series, fitted with a TMF 200-2000 A thermal-magnetic trip unit. The description carries UL/CSA markings, confirming its listing for North American panel applications.
The 250 A frame with a TMF 200-2000 A trip block means the adjustable thermal and magnetic pickup ranges cover motor, feeder, and distribution circuits from 200 A up to the full frame rating. The thermal-magnetic (TMF) design provides fixed magnetic instantaneous pickup and adjustable thermal overload — standard for general-purpose branch protection where close coordination with downstream loads is needed. The 3-pole configuration suits three-phase systems; the UL/CSA listing is the key gate for North American jobsite acceptance.