ABB 1SDA066730R1 A1N 125 TMF 90-900 3p F F 90A 3-Pole Fixed Moulded Case Circuit Breaker for Transformer Generator Installation Protection

The ABB 1SDA066730R1 A1N 125 TMF 90-900 3p F F is a 90 A, 3-pole fixed-mount power circuit-breaker from ABB's Formula A1 Series, engineered for reliable protection of transformers, generators, and electrical installations. Rated to IEC standards, the A1N 125 TMF 90-900 3p F F delivers robust overcurrent and short-circuit protection in a compact 76.2 × 130 × 60 mm footprint, making it well suited for space-constrained industrial control panels and switchgear assemblies.

Technical Specifications

Certifications & Standards

• CE: Conforms to applicable European Union directives for electrical equipment
• IEC: Designed and tested to IEC standards for power circuit-breakers
• RoHS: Compliant with EU Directive 2011/65/EU on restriction of hazardous substances
• REACH: Compliant with EU REACH regulation on chemical substances
• EU Directive 2011/65/EU: Restriction of hazardous substances in electrical and electronic equipment
• Amendment 2015/863: Updated RoHS substance restrictions per EU Delegated Directive 2015/863
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment Directive for responsible end-of-life disposal

Applications & Use Cases

• Transformer primary and secondary protection in industrial switchgear panels
• Generator protection in power generation and distributed energy systems
• Main and branch feeder protection in industrial and commercial electrical installations
• Incomer protection in motor control centres (MCCs) and distribution boards
• Control panel circuit protection in manufacturing, process, and automation environments