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ABB S202MUC-B10 — 2-Pole MCB (DIN Rail)

ABB S202MUC-B10 S200MUC MCB, 2P B 10A, 277VAC/500VDC

MPNS202MUC-B10

ABB S200MUC series, S202MUC-B10, 2-pole miniature circuit breaker, Trip Curve B, 10 A, 277 VAC / 500 VDC, 6 kA interrupting rating, DIN rail mount.

ABB S202MUC-B10 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

S202MUC-B10 — Specifications
ParameterValue
Amps10
TypeTrip Curve B
Poles2
MountingDIN Rail
Volts AC277
Volts DC500
Breaking capacity6 kA
Interrupt rating DC10 kA

Product details

What this MCB does on the rail

Rated 277 VAC and 500 VDC, with an interrupting capacity of 6 kA at 277 VAC and 10 kA at 500 VDC. The DC rating is notably high for a 2-pole MCB this size — 500 VDC at 10 kA covers string-level solar combiner boxes and DC distribution in industrial control panels, where a fault can sustain an arc longer than AC. The 6 kA AC interrupt rating is standard for downstream subpanels fed from a transformer or a larger upstream breaker; it is not sized for service-entrance duty.

Frequently asked questions

What is the closest second-source to S202MUC-B10?

The ABB S202M-B10 is the closest functional peer — same 10 A, B curve, 2-pole DIN-rail footprint, and 6 kA AC interrupt rating. The key difference is DC voltage: the S202MUC-B10 is rated 500 VDC; the S202M-B10 is rated 125 VDC. For AC-only panels, the S202M-B10 is a drop-in substitute without rewiring.

Will S202MUC-B10 drop into a panel specified for S202M-B10?

Yes. Both share the same 2-pole DIN-rail form factor, terminal spacing, and busbar compatibility. No rewiring or panel rework is needed for the mechanical fit. The only consideration is the higher DC voltage rating on the S202MUC-B10 — if your circuit is strictly AC, either works; if you need 500 VDC capability, the S202MUC-B10 is the correct part.

MPN
S202MUC-B10