ABB 1SDA054404R1 T5S 630 PR221DS-LS/I In=630 3p F F 630A 3-Pole Fixed Power Circuit Breaker

The ABB 1SDA054404R1 T5S 630 PR221DS-LS/I In=630 3p F F is a 630 A, 3-pole fixed-mount moulded case power circuit breaker from the ABB Tmax T5S series, engineered for transformer, generator, and installation protection in demanding industrial power distribution applications. Equipped with the PR221DS-LS/I electronic trip unit, this breaker delivers precise long-time and instantaneous overcurrent protection with a compact 140 × 205 × 103.5 mm footprint and a robust 4.875 kg construction built for panel integration.

Technical Specifications

Certifications & Standards

• CE: Compliant with European low-voltage directive requirements for electrical equipment
• IEC: Designed and tested in accordance with IEC standards for moulded case circuit breakers
• RoHS: Restriction of Hazardous Substances compliant — free from restricted materials
• REACH: Compliant with EU REACH regulation on chemical substances
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible disposal

Applications & Use Cases

The T5S 630 PR221DS-LS/I In=630 3p F F is purpose-built for protection of transformers, generators, and main distribution boards in industrial facilities, commercial buildings, and infrastructure projects. The PR221DS-LS/I electronic trip unit provides adjustable long-time (LS) and instantaneous (I) protection functions, giving engineers flexibility to coordinate protection across complex power systems. The fixed (F F) mounting configuration ensures a secure, vibration-resistant installation in LV switchgear panels and motor control centres.