Eaton xEffect Miniature Circuit Breaker 3-Pole 40A Type B 415V AC 10 kA Breaking Capacity 278851 FAZ-B40/3

Eaton 278851 FAZ-B40/3 Miniature Circuit Breaker (MCB) with 3 poles and a current rating of 40 amperes is engineered for reliable electrical circuit protection in industrial and commercial environments. Its type B tripping characteristic is ideal for protection of circuits with low inrush currents. Rated for 415 volts AC, this breaker supports harsh electrical conditions while providing fast interruption at up to 10 kA breaking capacity.

This MCB is designed for secure DIN rail mounting, simplifying installation in control panels and distribution boards. Its twin-purpose terminals facilitate flexible wiring options, ensuring compatibility with various cable types. The toggle switch actuator features a trip-free design which prevents manual override, enhancing personnel and equipment safety.

The breaker has an IP20 enclosure rating to prevent accidental ingress of small objects, ensuring long-term durability. Compact dimensions of 85 mm width and 73 mm depth allow efficient use of panel space. The thermal magnetic tripping mechanism combines fast short-circuit response with effective overload protection, suitable for a diverse range of electrical appliances and motor control applications.

Indicators with red or green lights provide quick visual confirmation of the breaker’s open or closed state, improving maintenance ease. Eaton's xEffect FAZ series MCBs are known for their robust construction and dependable performance in industrial automation, manufacturing, HVAC systems, and electrical distribution networks.

Designed for DIN rail mounting in control panels. Supports rated AC voltage of 415 volts for industrial applications. Offers 10 kA short circuit breaking capacity with instantaneous break time. Twin-purpose terminal type for versatile wiring connections.

Toggle switch with trip-free mechanism ensures reliable safety operation. IP20 protection rating safeguards internal components against fingers and small objects. Width of 85 mm and depth of 73 mm suit compact electrical assemblies.

Suitable for supplementary protection with thermal-magnetic tripping mechanism. Red or green indicator shows contact position for visual status check.

EnvMart offers this Eaton FAZ-B40/3 Miniature Circuit Breaker as a premier solution for circuit overload and short-circuit protection. Browse our Electrical & Automation category for related Eaton protection devices and control gear.