ABB 1SDA066490R1 A1C 125 TMF 50-500 1p F F 125A 1-Pole Fixed Moulded Case Circuit Breaker

The ABB 1SDA066490R1 A1C 125 TMF 50-500 1p F F is a 125 A single-pole fixed-mount power circuit-breaker from the ABB Formula A1 series, engineered for reliable protection of transformers, generators, and electrical installations. Featuring a TMF (Thermal-Magnetic Fixed) trip unit with an adjustable current range of 50–500 A and compact dimensions of 25.4 × 130 × 60 mm, this breaker delivers robust overcurrent and short-circuit protection in space-constrained control panels and distribution boards.

Technical Specifications

Certifications & Standards

• CE: Conforms to European Union CE marking requirements for electrical equipment
• RoHS: Compliant with EU Directive 2011/65/EU on restriction of hazardous substances in electrical and electronic equipment
• REACH: Compliant with EU REACH regulation (EC No 1907/2006) on chemical substance safety
• EU Directive 2011/65/EU: RoHS Directive — restriction of hazardous substances in electrical and electronic equipment
• Amendment 2015/863: RoHS 3 amendment expanding the list of restricted substances
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment Directive for proper end-of-life disposal

Applications & Use Cases

• Overcurrent and short-circuit protection for transformers and generators
• Main and feeder protection in industrial control panels and distribution boards
• Installation protection in commercial and industrial electrical systems
• Compact single-pole configurations where panel space is critical
• Fixed-mounted applications requiring a reliable, low-maintenance circuit-breaker