ABB 1SDA054437R1 T5N 400 TMA 400-4000 3p F F 400A 3-Pole Fixed MCCB Power Circuit-Breaker

The ABB 1SDA054437R1 T5N 400 TMA 400-4000 3p F F is a 400 A, 3-pole fixed-mount moulded case circuit-breaker from the ABB TMAX T5 series, engineered for power distribution protection of transformers, generators, and installation networks. Featuring a TMA thermomagnetic release with an adjustable range of 400–4000 A, this MCCB delivers reliable overload and short-circuit protection in a compact 140 × 205 × 103.5 mm footprint weighing just 4.549 kg.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union low voltage and electromagnetic compatibility directives
• IEC: Designed and tested in accordance with IEC 60947 series for low-voltage switchgear and controlgear
• RoHS: Restriction of Hazardous Substances compliant — free from restricted materials per EU Directive 2011/65/EU
• REACH: Compliant with EU REACH regulation (EC No 1907/2006) regarding chemical substance safety
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible end-of-life disposal

Applications & Use Cases

• Transformer secondary protection in industrial and commercial power distribution boards
• Generator output circuit protection in standby and prime power installations
• Main and sub-main incomer protection in LV switchboards and motor control centres
• Installation protection in factories, data centres, and infrastructure facilities