ABB 1SDA066574R1 A3N 630 ELT-LI In=630 4p F F 630A 4-Pole Fixed Molded Case Circuit Breaker

The ABB 1SDA066574R1 (A3N 630 ELT-LI In=630 4p F F) is a 630 A, 4-pole, fixed-mounted molded case circuit breaker (MCCB) from the Formula A3N range, ABB's compact and economical MCCB series for low-voltage distribution protection. It is fitted with an ELT-LI electronic trip unit (long-time and instantaneous protection) and is rated 36 kA Icu at 400 V AC. Weight is 6.5 kg.

Technical Specifications

Certifications & Standards

• CE: Complies with EU low-voltage directive requirements for electrical equipment
• IEC: Designed and tested in accordance with IEC standards for low-voltage switchgear and controlgear
• RoHS: Restriction of Hazardous Substances compliant, free from restricted hazardous materials
• REACH: Compliant with EU REACH regulation on chemical safety
• WEEE: Registered under the Waste Electrical and Electronic Equipment directive for responsible end-of-life disposal

Selection Notes

• Rated current is 630 A; check it against the continuous load current of the circuit being protected.
• Icu is 36 kA at 400 V AC; confirm it is equal to or higher than the prospective fault current at the installation point.
• This is a 4-pole version; use it where the neutral conductor must be switched, and confirm the pole count matches the system. Mounting is fixed (not plug-in or withdrawable).
• The ELT-LI trip unit is electronic and, per its designation, covers long-time and instantaneous protection; check that this matches the coordination study.