ABB Tmax XT7H Molded Case Circuit Breaker

Feature & Principle

It belongs to ABB Tmax XT series high frame molded case circuit breaker. XT7H represents high breaking version. Adopts current limiting structure, equipped with Ekip series electronic trip unit, supports adjustable LSI / LSIG protection, power metering, fault recording. It can expand communication modules, auxiliary contacts, shunt release and undervoltage release. It has reliable mechanical interlock, optional fixed installation or withdrawable drawer type, widely used for industrial main incoming, bus tie and heavy load feeder circuits.

Specifications

Model: XT7H Brand: ABB Series: Tmax XT Current range: 800A / 1000A / 1250A Pole: 3P / 4P Rated voltage: 690 V AC Trip unit: Ekip Dip / Ekip Touch / Ekip Hi-Touch Protection: LSI, LSIG Structure: Fixed / Withdrawable Standard: IEC 60947-2 Application: Industrial distribution cabinet, factory heavy feeder, building power supply Certification: CE, UL

Components & Diagnostics

Insulated housing, contact assembly, arc extinguishing chamber, Ekip electronic trip controller, operating mechanism, auxiliary switch and alarm contact. Common faults: contact overheating, abnormal tripping, trip parameter drift, communication failure, mechanism jamming.

Product Brief

XT7H molded case circuit breaker, ABB high current MCCB spare widely used for workshop low voltage power distribution cabinet maintenance and replacement.