2CDS251001R0205 ABB SH203-B20 MCB 1P 20A B Curve 6kA DIN Rail

The ABB S201-B20 (article 2CDS251001R0205) is a 1-pole miniature circuit breaker from the System pro M compact S200 series, rated at 20 A with a type B tripping characteristic and a 6 kA AC breaking capacity. It uses two independent tripping mechanisms - a delayed thermal element for overload protection and an electromechanical element for short circuit protection - making it suitable for residential, commercial, and industrial installations.

Technical specifications:

• Series: S201-B20
• ABB article number: 2CDS251001R0205
• EAN: 4016779465106
• Configuration: 1P (1 pole)
• Rated current: 20 A
• Tripping characteristic: B
• Breaking capacity: 6 kA (AC)
• Standards: IEC/EN 60898-1, IEC/EN 60947-2, UL1077

Features and benefits:

• Current limiting design reduces let-through energy during fault conditions, limiting stress on downstream equipment
• Dual-mechanism protection covers both sustained overloads via delayed thermal tripping and sudden short circuits via electromechanical tripping
• B tripping characteristic suits loads with low inrush currents; the S200 family also covers C, D, K, and Z characteristics for other load types
• Accepts a bottom-fitting auxiliary contact accessory that saves 50% space compared to side-mounted contact solutions
• Meets IEC/EN 60898-1, IEC/EN 60947-2, and UL1077, allowing use across a wide range of installation types and markets

Applications:

• Branch circuit protection in residential distribution boards and consumer units
• Commercial building electrical panels and sub-distribution boards
• Industrial control cabinets and machine panels requiring compact 1-pole protection
• Low-voltage installations where a B-characteristic 20 A breaker is specified

Also known as: ABB S201-B20, S201-B20 2CDS251001R0205, ABB 2CDS251001R0205, ABB 20 A 1-pole MCB B-curve, S200 B20 circuit breaker.