ABB 1SDA066767R1 A1N 125 TMF 100-1000 4p F F 4-Pole 100A Fixed Moulded Case Circuit Breaker

The ABB A1N 125 TMF 100-1000 4p F F (SKU: 1SDA066767R1) is a 4-pole, 100 A fixed-mount power circuit breaker from the Formula A1 series, engineered for reliable protection of transformers, generators, and electrical installations. Designed to IEC standards and rated for demanding industrial environments, this breaker provides robust overcurrent and short-circuit protection in a compact 101.6 × 130 × 60 mm footprint weighing just 1 kg.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union directives for electrical equipment sold within the EEA
• IEC: Designed and tested in accordance with IEC standards for power circuit breakers
• RoHS: Restriction of Hazardous Substances compliant — free from restricted materials
• REACH: Compliant with EU REACH regulation on chemical substance safety
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible disposal

Applications & Use Cases

• Transformer primary and secondary side protection in industrial switchgear panels
• Generator output circuit protection in standby and prime power systems
• Main and sub-distribution board installation protection
• Motor feeder and busbar protection in control panels
• Industrial automation and process control cabinet power distribution

The A1N 125 TMF 100-1000 4p F F combines a thermomagnetic (TMF) trip unit with a fixed-mounted, 4-pole configuration, making it well suited for applications where space efficiency and dependable short-circuit interruption are paramount. Its compact design simplifies integration into existing DIN-rail or bolt-mounted switchgear enclosures, while its IEC-verified breaking performance ensures compliance with international electrical installation standards. Procurement engineers and panel builders will appreciate the straightforward catalog identification — simply specify A1N 125 TMF 100-1000 4p F F on bills of materials and purchase orders for seamless sourcing.