ABB 1SDA066562R1 A3S 400 TMF 320-3200 3p F F 400A 3-Pole Fixed Air Circuit Breaker

The ABB 1SDA066562R1 — catalog number A3S 400 TMF 320-3200 3p F F — is a 400A, 3-pole fixed-mount air circuit breaker from the ABB Formula A3S series, engineered for robust low-voltage power distribution and switchgear protection. Featuring a TMF (Thermo-Magnetic Fixed) trip unit with an adjustable range of 320–3200 A, this open-type ACB delivers dependable overload and short-circuit protection for industrial panels, motor control centres, and main distribution boards.

Technical Specifications

Certifications & Standards

• CE: Meets European Union safety, health, and environmental protection requirements for the European market.
• IEC: Designed and tested in accordance with IEC standards for low-voltage switchgear and controlgear.
• RoHS: Compliant with the Restriction of Hazardous Substances Directive — free from restricted hazardous materials.
• REACH: Conforms to REACH regulation requirements for chemical substance safety in electrical components.
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for responsible end-of-life disposal.

Applications & Use Cases

• Main incoming protection in low-voltage motor control centres (MCCs) and main distribution boards
• Feeder and bus-coupler protection in industrial switchgear panels
• Generator and transformer secondary protection in power distribution systems
• Industrial plants, data centres, commercial buildings, and infrastructure projects requiring reliable switchgear protection up to 400 A