ABB 1SDA080849R1 XT1S 160 TMD 40-450 4p F F 40-450A 4-Pole 85kA Fixed Moulded Case Circuit Breaker

The ABB XT1S 160 TMD 40-450 4p F F (SKU: 1SDA080849R1) is a 4-pole fixed power circuit-breaker from the Tmax XT1 series, engineered for transformer, generator, and installation protection in industrial power distribution systems. Rated at 40–450 A with a breaking capacity of 85 kA at 220 V AC, this moulded case circuit-breaker delivers reliable overcurrent and short-circuit protection in demanding environments.

Technical Specifications

Certifications & Standards

• RoHS: Compliant with EU Restriction of Hazardous Substances regulations
• REACH: Compliant with EU REACH chemical safety regulation
• EU Directive 2011/65/EU: Restriction of hazardous substances in electrical and electronic equipment
• Amendment 2015/863: Updated RoHS substance list compliance
• IEC 60947-2: Low-voltage switchgear and controlgear — circuit-breakers standard
• CE: Conformité Européenne mark — meets EU safety and performance requirements
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment Directive

Applications & Use Cases

The ABB XT1S 160 TMD 40-450 4p F F is ideally suited for a broad range of industrial and commercial power distribution applications. Its high breaking capacity makes it a preferred choice for protection of transformers and generators, where fault currents can be exceptionally high. The 4-pole fixed configuration integrates seamlessly into control panels, switchboards, and motor control centres, providing overcurrent and short-circuit protection across all active and neutral conductors. Typical deployments include industrial automation systems, building services distribution boards, data centres, and manufacturing facilities where reliable electrical protection is non-negotiable. The Tmax XT1 series is recognised by electrical engineers and procurement professionals for its compact form factor, robust construction, and compliance with international standards including IEC 60947-2.