ABB 1SDA054333R1 T5S 400 PR221DS-LS/I In=400 3p F F 400A 3-Pole Fixed Molded Case Circuit Breaker

The ABB 1SDA054333R1 — catalog number T5S 400 PR221DS-LS/I In=400 3p F F — is a 400 A, 3-pole fixed molded case circuit breaker from the TMAX T5 series, equipped with the PR221DS-LS/I electronic trip unit for precise overload and short-circuit protection in low-voltage power distribution systems. Designed for demanding industrial applications, the T5S 400 PR221DS-LS/I In=400 3p F F delivers reliable thermal-magnetic-equivalent protection in a compact 140 × 205 × 103.5 mm frame weighing 4.824 kg.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union directives for electrical safety and electromagnetic compatibility
• RoHS: Restriction of Hazardous Substances — free from restricted materials per EU Directive 2011/65/EU
• REACH: Compliant with EU REACH regulation (EC No 1907/2006) on chemical substance safety
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible end-of-life disposal

Applications & Use Cases

• Main and sub-distribution boards in industrial facilities and commercial buildings
• Protection of cables, busbars, and outgoing feeders in LV switchgear panels
• Motor feeder and incomer protection in manufacturing plants and process industries
• Generator and transformer secondary protection requiring adjustable LS/I trip characteristics
• Data centres, utilities, and infrastructure requiring high-reliability overcurrent protection