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ABB S204-K10 — 4-Pole MCB (DIN Rail)

ABB S204-K10 MCB 4P K 10A 277V, DIN Rail

MPNS204-K10

ABB S204-K10, 4-pole miniature circuit breaker, Trip Curve K, 10 A, 277 VAC, 10 kA interrupting capacity, DIN rail mount.

$35.56Ref. price · indicative, final on quote
ABB S204-K10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S204-K10 — Specifications
ParameterValue
Amps10
TypeTrip Curve K
Poles4
MountingDIN Rail
Volts AC277
Breaking capacity10 kA

Product details

Trip Curve K — what it means for your load

Curve K is the middle ground between B and C curves for magnetic trip: it holds through inrush from motor starters, contactor coils, and solenoid valves without nuisance tripping, but still clears fast on a hard short. On a 10 A frame, expect the magnetic trip to operate between 8× and 12× rated current (80–120 A instantaneous). That makes this breaker a natural fit for mixed inductive-resistive loads in a control panel — think a bank of contactor coils plus a small transformer primary.

Panel integration

Four-pole width occupies 72 mm (4 × 18 mm modular units).

Frequently asked questions

What is the S204-K10's interrupting rating?

The S204-K10 is rated for 10 kA interrupting capacity at 277 VAC. That means it can safely interrupt a fault current up to 10,000 A without external current-limiting fuses — sufficient for most commercial and light industrial panelboards where the available fault current is under that threshold.

Can I use the S204-K10 to replace a 3-pole S203-D13 in a panel?

No — the S204-K10 is a 4-pole breaker with a K-curve magnetic trip, while the S203-D13 is a 3-pole D-curve unit. The pole count and trip characteristic differ, so a direct drop-in replacement would require rewiring the neutral/grounding scheme and verifying coordination with downstream loads. The S203-D13 is a different part for a different duty.

Where can I buy the S204-K10 and how is it quoted?

The S204-K10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time on your quantity.

MPN
S204-K10