ABB 2CDS381001R0034 S301P-C3 1P 3A 25kA DIN Rail Miniature Circuit Breaker (MCB)

ABB's 2CDS381001R0034 (S301P-C3) is a 1-pole miniature circuit breaker in the System pro M compact S300P industrial range, rated 3 A with a C tripping characteristic for AC or DC overload and short-circuit protection. Its IEC 60898-1 breaking capacity (Icn) is 25 kA, while IEC 60947-2 testing rates the same device to 100 kA at 230/240 V AC.

Technical Specifications

Certifications & Standards

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

Selection Notes

As with the rest of the S301P-C range, the 100 kA Icu figure is an IEC 60947-2 industrial rating, not the IEC 60898-1 Icn that governs residential/light-commercial use - the latter is 25 kA for this 3 A device. A 3 A rating fits a small control or instrumentation branch rather than a lighting or power feeder. Within the same 1-pole frame, current ratings run from 2 A to 63 A, with Icn stepping down to 15 kA on the higher-current variants; size the breaker to the branch load, not to the frame's maximum rating.