ABB 1SDA066572R1 A3N 630 TMF 500-5000 4p F F InN=100%In 630A 4-Pole Fixed Air Circuit Breaker

The ABB 1SDA066572R1 A3N 630 TMF 500-5000 4p F F InN=100%In is a 630A 4-pole fixed-mount air circuit breaker from the ABB Formula A3N series, designed for reliable overcurrent and short-circuit protection in low-voltage power distribution systems. Featuring a TMF (Thermal-Magnetic Fixed) trip unit with an adjustable current range of 500–5000 A and a neutral protection set to 100% of In, this ACB is engineered for demanding industrial and commercial switchgear applications requiring high-performance protection and robust construction.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union directives for low-voltage electrical equipment
• IEC: Designed and tested in accordance with IEC standards for air circuit breakers
• RoHS: Restriction of Hazardous Substances compliant — free from restricted materials
• REACH: Compliant with EU REACH regulations on chemical substances
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment directive for responsible disposal

Applications & Use Cases

• Main and outgoing circuit protection in low-voltage switchgear panels and distribution boards
• Industrial power distribution in manufacturing plants, utilities, and process facilities
• Building power infrastructure including commercial and high-rise electrical installations
• Protection of busbars, cables, and downstream equipment in 4-wire distribution systems requiring full neutral protection
• Retrofit and replacement applications requiring a fixed-type ACB in Formula A3N frame size