ABB 1SDA066566R1 A3N 630 ELT-LI In=630 3p F F 630A 3-Pole Fixed Molded Case Circuit Breaker

The ABB 1SDA066566R1 (A3N 630 ELT-LI In=630 3p F F) is a 630 A, 3-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. Dimensions (W × H × D) are 139.5 mm × 205 mm × 103.5 mm and weight is 4.853 kg.

Technical Specifications

Certifications & Standards

• CE: Conforms to European Union safety, health, and environmental protection requirements
• IEC: Designed and tested in accordance with applicable IEC low-voltage switchgear standards
• RoHS: Compliant with the Restriction of Hazardous Substances Directive (2011/65/EU)
• REACH: Compliant with EU REACH regulation (EC) No 1907/2006 on chemical substances
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive (2012/19/EU)

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 3-pole version for three-phase circuits; select a 4-pole variant if the neutral must be switched. 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.