ABB 1SDA054445R1 T5H 400 TMA 400-4000 3p F F 400A 3-Pole Fixed Molded Case Circuit Breaker

The ABB 1SDA054445R1 T5H 400 TMA 400-4000 3p F F is a 400 A, 3-pole fixed molded case circuit breaker from the ABB Tmax T5 series, engineered to deliver reliable overload and short-circuit protection in demanding industrial power distribution applications. Featuring a thermal-magnetic TMA trip unit with an adjustable current setting range of 400–4000 A, this MCCB combines precision trip performance with a robust fixed-mount frame design, making it a preferred choice for panel builders and electrical engineers worldwide.

Technical Specifications

Certifications & Standards

• IEC: Designed and tested in accordance with IEC standards for molded case circuit breakers, ensuring compliance with international electrical safety and performance requirements.
• RoHS: Compliant with the Restriction of Hazardous Substances Directive, confirming the product is free from restricted hazardous materials.
• REACH: Meets REACH regulation requirements, verifying that chemical substances used in the product are properly assessed and controlled.
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive, supporting responsible end-of-life disposal and recycling obligations.

Applications & Use Cases

The ABB T5H 400 TMA 400-4000 3p F F MCCB is widely specified in industrial switchgear panels, main distribution boards, motor feeder circuits, and generator protection applications. Its adjustable thermal-magnetic trip unit allows engineers to tailor overload and short-circuit protection thresholds to the specific requirements of each installation, reducing the need for multiple SKUs across different load scenarios. The fixed-mount design ensures a secure, space-efficient installation in both new builds and retrofit projects.