ABB 1SDA071451R1 E1.2B 1250 Ekip Dip LI 4p F F 1250A 4P 42kA Fixed Power Circuit Breaker

The ABB 1SDA071451R1 E1.2B 1250 Ekip Dip LI 4p F F is a 1250 A, 4-pole fixed-mount power circuit breaker from the SACE Emax2 E1.2 series, delivering a breaking capacity of 42 kA at 400 V AC. Designed for transformer, generator, and installation protection in demanding industrial environments, the E1.2B 1250 Ekip Dip LI 4p F F features ABB's Ekip Dip LI electronic trip unit for precise overload (L) and short-circuit (I) protection. Its compact fixed design — 280 mm × 296 mm × 183 mm at just 16 kg — makes it well suited for high-current switchgear panels and power distribution boards.

Technical Specifications

Certifications & Standards

• IEC: Designed and tested in accordance with IEC standards for power circuit breakers
• CE: Conforms to European Union directives for electrical equipment
• UL 2799: Listed under UL 2799 for applicable North American markets
• ATEX: Certified for use in potentially explosive atmospheres
• CSA: Canadian Standards Association certified
• VDE: Tested and certified by the German VDE testing institute
• RoHS: Compliant with EU Restriction of Hazardous Substances directive
• REACH: Compliant with EU REACH regulation on chemical substances
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive

Applications & Use Cases

• Transformer primary and secondary protection in industrial substations
• Generator protection and incoming feeder protection
• Main and bus-coupler switching in low-voltage switchgear assemblies
• Installation protection in large commercial and industrial power distribution boards
• High-current feeder protection in process industries, data centres, and infrastructure projects