ABB XT4HU3250DFF000XXX Circuit Breaker

ABB XT4HU3250DFF000XXX is a SACE Tmax XT molded-case circuit breaker in the XT4 frame. This 3-pole device is rated for 250 A and supports 600 V (UL) or 690 V (IEC) systems, with a 25 kA interrupt rating at 600 V. The UL/CSA-listed MCS (molded-case switch disconnector) unit uses an electronic trip and is configured for front-line/load-side terminations on the XT4 250 A frame. Its enclosure measures about 6.3 in high, 4.13 in wide, and 3.25 in deep, and it is designed to operate from -13 to 158 °F. This model, identified by the catalog number XT4HU3250DFF000XXX, is part of ABB’s SACE Tmax XT family and is intended for low-voltage distribution in industrial and commercial electrical installations, delivering reliable protection for feeders and transformers within the XT4 250 A range. The XT4HU3250DFF000XXX’s 25 kA short-circuit interrupt rating at 600 V supports effective interruption of fault currents typical in distributed power systems, while its front-line/load-side terminations and MCS design simplify field installation.