ABB 2CDS384001R0164 S304P-C16 4P 16A 25kA DIN Rail Miniature Circuit Breaker (MCB)

ABB's S300P series 2CDS384001R0164 (S304P-C16) is a 4-pole, 16 A miniature circuit breaker with a Curve C trip and 25 kA breaking capacity at 415 V AC, dual-certified to IEC/EN 60898-1 and IEC/EN 60947-2. Its UL 1077 rating adds 10 kA interrupting capacity at 480Y/277 V AC for mixed IEC/UL installations.

Technical Specifications

Certifications & Standards

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

Selection Notes

At 16 A, Icn remains 25 kA at 415 V AC, the same ceiling held across the S304P-C family from 10 A up to 25 A before it steps down to 20 kA at 32 A. That 25 kA rating covers most LV sub-distribution boards without needing a current-limiting upstream device. Curve C's 5-10 x In magnetic trip threshold matches loads with moderate inrush - small motors, transformers, ballasts - 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.