Rated 100 A, 3-Pole — XT4V Series
The ABB XT4VU3250EFF000XXX is a 3-pole molded-case circuit breaker from the XT4V series, rated at 100 A for 3-phase systems. This is the continuous current rating under standard conditions — the breaker carries 100 A without tripping, and its thermal-magnetic trip unit responds to overloads and short-circuits above that threshold. For a 3-phase motor or distribution feeder, 100 A at 400 VAC translates to roughly 55 kW of connected load, making this a common size for medium motor control centers or sub-distribution boards.
The 3-pole form factor occupies three modular units of space. Terminals accept copper or aluminum conductors up to the cable range specified for the 100 A frame — typically 50 mm² for the line and load connections.
ABB provides a declaration of conformity for the XT4V series covering the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU). The XT4VU3250EFF000XXX carries IEC 60947-2 certification for molded-case circuit breakers, covering both distribution and motor-circuit protection. RoHS and REACH compliance documentation is available from ABB on request.