ABB 2CDS384001R0254 S304P-C25 4P 25A 25kA DIN Rail Miniature Circuit Breaker (MCB)

Rated at 25 A, the ABB 2CDS384001R0254 (S304P-C25) is a 4-pole S300P miniature circuit breaker with Curve C tripping and a 25 kA breaking capacity at 415 V AC. Built to IEC/EN 60898-1 and IEC/EN 60947-2 and listed to UL 1077 at 10 kA / 480Y/277 V AC, it switches and protects DIN-rail feeder and branch circuits.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1
• IEC/EN 60947-2
• UL 1077
• CSA 22.2 No. 235

Selection Notes

At 25 A, this is the last S304P-C frame to hold the family's 25 kA Icn at 415 V AC before it drops to 20 kA at 32 A and 40 A. That makes it the highest-current, highest-breaking-capacity option in the 10-25 A band, useful where the board's prospective fault current sits close to 25 kA and the load does not yet need the 32 A frame. Curve C's 5-10 x In magnetic trip threshold matches loads with moderate inrush rather than purely resistive circuits. The 4-pole configuration switches all three phases plus the neutral, which is needed on TN-C-S or TT systems where the neutral must also be isolated.