The ABB S203P-K6 is a 3-pole molded case circuit breaker with a K-curve trip characteristic, rated 63 A continuous and 10 kA interrupting capacity at 480Y/277 VAC. The 10 kA SCCR at 480Y/277 VAC tells you it can safely interrupt a fault up to that level on a 277/480 V wye system; if your available fault current is higher, you need an upstream current-limiting device to coordinate with this breaker.
ABB S203P-K6 MCCB, 3-Pole K Curve 63A 10kA
MPNS203P-K6
ABB S203P-K6, 3-pole Molded Case Circuit Breaker, K curve, 63 A, 10 kA interrupting rating at 480Y/277 VAC, screw terminals.
$55.88Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.41 kgs |
Product details
Frequently asked questions
Where can I buy S203P-K6 and how is it quoted?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.
Will S203P-K6 drop into a panel that was specified around SH203T-C16 without rewiring?
No — the SH203T-C16 is a 16 A C-curve breaker, while the S203P-K6 is 63 A K curve. The physical footprint may be similar (both 3-pole MCCBs), but the trip curve and ampacity are different; you would need to verify the load and coordination study before swapping.
What compliance documentation does ABB provide for S203P-K6?
ABB typically provides RoHS and REACH declarations, plus UL and IEC certifications for the S200 series. Specific documentation should be requested at quote time to match your compliance requirements.
MPN
S203P-K6