ABB 1SDA054317R1 T5N 400 PR221DS-LS/I In=400 3p F F 400A 3-Pole Fixed Moulded Case Circuit Breaker

The ABB 1SDA054317R1 T5N 400 PR221DS-LS/I In=400 3p F F is a 400A 3-pole fixed moulded case circuit breaker (MCCB) from the ABB Tmax T5 series, engineered for power distribution protection in transformer, generator, and installation applications. Featuring the PR221DS-LS/I electronic release unit with long-time and instantaneous protection functions, this breaker delivers precise, reliable overcurrent protection in demanding industrial environments.

Technical Specifications

Certifications & Standards

• CE: Conforms to European Union safety, health, and environmental protection requirements
• IEC: Designed and tested in accordance with IEC standards for circuit breakers and switching equipment
• RoHS: Compliant with the Restriction of Hazardous Substances Directive, restricting use of harmful materials
• REACH: Compliant with EU REACH regulation governing chemicals used in electrical equipment
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for responsible end-of-life recycling

Applications & Use Cases

• Transformer feeder and secondary protection in MV/LV substations
• Generator output circuit protection in standby and prime power systems
• Main and sub-main distribution board protection
• Industrial motor distribution panels and control room switchboards
• Protection of cables and busbars in manufacturing and process plants