ABB 1SDA066573R1 A3S 630 TMF 500-5000 4p F F InN=100%In 4P 630A Fixed Power Circuit-Breaker

The ABB 1SDA066573R1 A3S 630 TMF 500-5000 4p F F InN=100%In is a 4-pole, 630 A fixed-mount power circuit-breaker from the Formula DSA A3 series, engineered for reliable protection of transformers, generators, and distribution installations. Featuring a TMF (thermal-magnetic) trip unit with a 500–5000 A setting range and 100% neutral current rating, the A3S 630 TMF 500-5000 4p F F InN=100%In delivers robust overcurrent and short-circuit protection in demanding industrial environments. Its compact fixed design (186 mm wide × 205 mm tall, 6.4 kg) makes it well-suited for space-constrained control panels and switchgear assemblies.

Technical Specifications

Certifications & Standards

• CE: Conforms to applicable European Union directives for electrical equipment
• RoHS: Compliant with EU Directive 2011/65/EU on restriction of hazardous substances
• EU Directive 2015/863: Compliant with the amended RoHS annex (additional restricted substances)
• REACH: Compliant with EU REACH regulation on chemical substances
• IEC: Designed and tested in accordance with IEC standards for low-voltage circuit-breakers
• WEEE: Registered under the EU Waste Electrical and Electronic Equipment directive for proper end-of-life disposal

Applications & Use Cases

• Transformer feeder protection in industrial distribution switchboards
• Generator circuit protection and generator set output switching
• Main and sub-distribution board installation protection
• Industrial control panels requiring fixed 4-pole MCCB solutions
• Applications demanding full 100% neutral current capacity (InN=100%In) — ideal for TN-S and IT networks with high neutral loading