ABB Tmax Molded Case Circuit Breaker 3-Pole 400A Fixed 690V AC 750V DC Thermal Magnetic 1SDA054445R1 T5H400 FF TMA 400A

ABB 1SDA054445R1 T5H400 FF TMA 400A Molded Case Circuit Breaker is a high-quality electrical protection device featuring a 3-pole configuration and fixed mounting suitable for industrial and commercial applications.

This MCCB delivers a rated current of 400A with excellent breaking capacity of 100 kA, enabling it to interrupt large fault currents efficiently. The thermal magnetic tripping mechanism provides dependable protection against overload and short circuits by combining thermal and magnetic operation principles.

The device supports rated AC voltage up to 690V and DC voltage up to 750V, with a rated impulse withstand voltage of 8 kV, ensuring resilience against transient voltage spikes typically encountered in electrical networks.

Featuring fixed terminals, a lever-type reset actuator, and compact dimensions (height 205 mm, width 140 mm, depth 103.5 mm), this breaker is engineered for easy installation and maintenance. It complies with international standards including RoHS, IEC, and CE, guaranteeing safety and environmental compliance.

This breaker is ideal for use in various industrial sectors such as manufacturing, automation systems, power distribution boards, and commercial building electrical panels where reliable circuit interruption is critical.

The breaker supports breaking capacity of 100 kA for superior circuit protection. Thermal magnetic tripping mechanism ensures reliable performance. Rated AC voltage is 690 V with rated DC voltage at 750 V. Built with fixed terminals and lever reset actuator for ease of use.

Compact dimensions with height 205 mm, width 140 mm, and depth 103.5 mm. Compliant with RoHS, IEC, and CE standards for safety and quality. Suitable for fixed installation in industrial and commercial electrical systems.

Designed to withstand rated impulse voltage of 8 kV ensuring durability in rugged environments. Operates effectively at frequencies of 50/60 Hz.

Choose ABB MCCBs for reliable circuit protection solutions. Explore more Molded Case Circuit Breakers and related products on EnvMart for your industrial and commercial electrical needs.