ABB 1SDA068331R1 XT4S 250 TMA 250-2500 4p F F InN=100% 250A 4-Pole Fixed Power Circuit Breaker

The ABB 1SDA068331R1 XT4S 250 TMA 250-2500 4p F F InN=100% is a 250 A, 4-pole fixed-mount moulded case power circuit breaker from the Tmax XT4S series, engineered for transformer, generator, and installation protection in demanding industrial environments. Featuring a TMA thermomagnetic trip unit with an adjustable range of 250–2500 A and a neutral conductor set at 100% of rated current, this breaker delivers precise overload and short-circuit protection. Its compact footprint (140 mm × 160 mm × 82.5 mm) and robust 3.5 kg construction make it ideal for space-constrained distribution boards and motor control centres.

Technical Specifications

Certifications & Standards

• IEC 60947-2: Low-voltage switchgear and controlgear — circuit breakers; primary standard governing design and performance
• CE: Confirms compliance with applicable European Union directives for market placement in the EEA
• VDE: German electrotechnical certification verifying compliance with VDE / DIN standards
• ATEX: Certified for use in potentially explosive atmospheres per EU Directive 2014/34/EU
• RoHS: Restriction of Hazardous Substances — confirms restricted substances are within permitted limits
• REACH: Compliance with EU REACH regulation on chemical substances in electrical equipment
• EN 45555: General methods for the assessment of the lifetime of energy-related products; supports eco-design requirements
• UL 2799: Zero-waste certification standard; supports sustainability reporting
• WEEE: Waste Electrical and Electronic Equipment directive compliance; product is registered for proper end-of-life recycling

Applications & Use Cases

• Transformer secondary protection in industrial power distribution panels
• Generator output protection and short-circuit coordination
• Main and sub-distribution installation protection in commercial and industrial facilities
• Motor control centres and switchboards requiring compact 4-pole fixed breakers
• Hazardous area installations where ATEX-rated equipment is mandated