T40B Molded Case Circuit Breaker

Feature & Principle

It is a low-voltage molded case circuit breaker with B breaking level. It adopts thermal magnetic trip structure. The bimetallic strip provides overload long-delay protection, and the magnetic release realizes instantaneous short-circuit protection. It can be fitted with auxiliary contacts, alarm contacts, shunt release and undervoltage release. Compact structure, suitable for general load distribution loops with low short-circuit current.

Specifications

Model: T40B Breaking grade: B Pole: 3P / 4P Rated voltage: Up to 690V AC Trip type: Thermal magnetic Standard: IEC 60947-2 Installation: Fixed mounting Application: Factory distribution cabinet, building power supply, lighting and socket branch circuit Certification: CE

Components & Diagnostics

Insulated housing, contact assembly, arc extinguishing chamber, thermal magnetic trip unit, operating handle, optional auxiliary switch. Common faults: contact overheating, false tripping, mechanism jamming, trip element aging.

Product Brief

T40B molded case circuit breaker, low voltage distribution spare widely used for distribution cabinet maintenance and replacement.