ABB 1SDA066500R1 A1N 125 TMF 40-400 2p F F 40A 2-Pole Fixed Power Circuit Breaker

The ABB A1N 125 TMF 40-400 2p F F (SKU: 1SDA066500R1) is a 40 A, 2-pole fixed-mount power circuit-breaker from the Formula A1 series, engineered for transformer, generator, and installation protection in demanding industrial and commercial applications. Compact at just 50.8 × 130 × 60 mm and weighing 0.542 kg, this breaker delivers reliable overcurrent and short-circuit protection with thermal-magnetic TMF trip technology.

Technical Specifications

Certifications & Standards

• CE: Conforms to European Union directives for electrical equipment safety and electromagnetic compatibility
• RoHS: Compliant with EU Restriction of Hazardous Substances Directive 2011/65/EU — free of lead, mercury, cadmium, and other restricted substances
• REACH: Compliant with EU REACH regulation (EC No 1907/2006) on chemical substance safety
• CB Scheme Certificate: Internationally recognised IEC CB scheme certification enabling acceptance across multiple national markets
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for responsible end-of-life disposal

Applications & Use Cases

• Transformer and generator feeder protection in industrial power distribution panels
• Installation protection for commercial buildings, data centres, and process plants
• Main and branch circuit protection in moulded-case switchgear assemblies
• Control panel and motor control centre (MCC) incoming circuit protection