2CDS253001R0635 ABB SH203-B63 MCB 3P 63A B Curve 6kA DIN Rail

The ABB S203-B63 (article 2CDS253001R0635) is a 3-pole miniature circuit breaker from the S200 System pro M compact range, rated at 63 A with a B tripping characteristic and a 6 kA AC breaking capacity. It combines two independent protection stages - a delayed thermal mechanism for sustained overload protection and an electromechanical release for instant short-circuit response - in a single compact device. The S200 range is approved for use in residential, commercial, and industrial installations.

Technical specifications:

• Series: S203-B63
• ABB article number: 2CDS253001R0635
• EAN: 4016779550970
• Configuration: 3-pole (3P)
• Rated current: 63 A
• Tripping characteristic: B
• Breaking capacity: 6 kA (AC)
• Operating voltage: 230/400 V AC

Features and benefits:

• Current limiting design reduces the energy let through to downstream components during a fault event
• Dual tripping mechanisms in one unit - thermal delay for overloads and electromechanical release for short circuits - give comprehensive circuit protection
• B tripping characteristic calibrated for circuits with low inrush current, providing accurate and consistent tripping response
• Compliant with IEC/EN 60898-1, IEC/EN 60947-2, and UL1077, covering a wide range of residential, commercial, and industrial application requirements
• Compatible with a bottom-fitting auxiliary contact accessory that saves up to 50% panel space compared to side-mounted alternatives

Applications:

• Three-phase circuit protection in residential distribution boards
• Commercial building electrical panels and switchboards
• Industrial control panels and equipment wiring
• General overload and short-circuit protection of three-phase circuits in low-inrush installations

Also known as: ABB S203-B63, S203-B63 2CDS253001R0635, 3-pole 63 A B-curve MCB, ABB S200 miniature circuit breaker 3P 63 A, 2CDS253001R0635.