ABB 1SDA066755R1 A1C 125 TMF 100-1000 4p F F 4P 100A Fixed Moulded Case Circuit Breaker

The ABB 1SDA066755R1 A1C 125 TMF 100-1000 4p F F is a 4-pole, 100 A fixed-mount power circuit breaker from the ABB Formula A1 series, engineered for transformer, generator, and installation protection in industrial control panels. Featuring a TMF (Thermal-Magnetic Fixed) trip unit, this compact breaker delivers reliable overcurrent and short-circuit protection across demanding industrial applications. With a fixed mounting configuration and a slim 101.6 mm width, the A1C 125 TMF 100-1000 4p F F integrates efficiently into switchgear and distribution boards where space is at a premium.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union directives for electrical equipment safety and electromagnetic compatibility.
• IEC: Designed and tested in accordance with IEC standards for low-voltage circuit-breakers.
• RoHS: Restriction of Hazardous Substances — free from restricted hazardous materials as per EU directive.
• REACH: Compliant with EU REACH regulation on chemical substances in electrical and electronic equipment.
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible end-of-life disposal.

Applications & Use Cases

• Transformer feeder and outgoing circuit protection in industrial distribution boards
• Generator set protection and main incomer applications
• Installation protection in commercial and industrial switchgear panels
• Motor circuit and feeder protection where a fixed, compact 4-pole breaker is required
• Machine building and OEM control panel integration