ABB 1SDA066785R1 A2N 250 TMF 225-2250 3p F F 225A 3-Pole Fixed Moulded Case Circuit Breaker

The ABB 1SDA066785R1 — catalog number A2N 250 TMF 225-2250 3p F F — is a 225 A, 3-pole fixed-mount power circuit breaker from the Formula A2N series, engineered for robust protection of transformers, generators, and electrical installations in industrial and commercial applications. Part of ABB's Formula DSA platform, the A2N 250 TMF 225-2250 3p F F delivers reliable overcurrent and short-circuit protection with a TMF (Thermal-Magnetic Fixed) trip unit, housed in a compact 105 × 150 × 60 mm enclosure weighing just 1.393 kg.

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 switchgear and circuit breakers.
• RoHS: Restriction of Hazardous Substances — free from restricted hazardous materials as per EU Directive 2011/65/EU.
• REACH: Compliant with EU REACH regulation (EC) No 1907/2006 concerning chemical substances.
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for responsible end-of-life disposal.

Applications & Use Cases

• Transformer secondary-side overcurrent and short-circuit protection in industrial switchboards.
• Generator output protection in standby and prime-power installations.
• Main and sub-distribution panel protection for commercial and industrial buildings.
• Motor feeder and busbar protection in manufacturing facilities and process plants.
• Integration into fixed-mounted MCC (Motor Control Centre) and MDB (Main Distribution Board) assemblies.