2CDS253001R0255 ABB SH203-B25 MCB 3P 25A B Curve 6kA DIN Rail

The ABB S203-B25 (article 2CDS253001R0255) is a 3-pole miniature circuit breaker from the System pro M compact S200 range, rated at 25 A with a B tripping characteristic. It provides dual-mode circuit protection: a delayed thermal mechanism handles overload conditions while an electromechanical mechanism responds to short-circuit events. As a current-limiting device with a 6 kA AC breaking capacity at 230/400 V AC, it covers three-phase branch circuit and distribution board applications.

Technical specifications:

• Series: S203-B25 (S200 family)
• ABB article number: 2CDS253001R0255
• EAN: 4016779469203
• Poles: 3P
• Rated current: 25 A
• Tripping characteristic: B
• Breaking capacity: 6 kA (AC)
• Nominal operating voltage: 230/400 V AC

Features and benefits:

• Current-limiting operation reduces the energy let through to downstream equipment during fault events
• B-characteristic tripping curve delivers fast electromagnetic response, suited to resistive and lightly inductive loads
• Delayed thermal tripping mechanism guards against sustained overload without operating on brief inrush
• Electromechanical tripping provides rapid disconnection under short-circuit conditions
• Accepts an optional bottom-fitting auxiliary contact accessory that saves 50% space on the device
• Rated to IEC/EN 60898-1, IEC/EN 60947-2 and UL1077, permitting use in residential, commercial and industrial installations

Applications:

• Protection of lighting and power circuits in residential buildings
• Branch circuit protection in commercial and office installations
• Three-phase equipment circuits in industrial distribution panels
• Sub-distribution boards requiring three-pole overcurrent and short-circuit protection

Also known as: ABB S203-B25, S203-B25 2CDS253001R0255, ABB 3-pole 25 A MCB, ABB S200 B25 circuit breaker, ABB 2CDS253001R0255.