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ABB S201-K20 — 1-Pole MCB (DIN Rail)

S201-K20 Miniature Circuit Breaker, 20A, 1P, Curve K, 277VAC

MPNS201-K20

ABB S200 series, miniature circuit breaker, DIN rail mount, 20 A, 1-pole, Trip Curve K, 277 VAC, 6 kA interrupting rating.

$131.74Ref. price · indicative, final on quote
ABB S201-K20 datasheet (PDF)
StockContact for availability
Lead timeCall for availability wk
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026

Specifications

Specifications

S201-K20 — Specifications
ParameterValue
Amps20
TypeTrip Curve K
Poles1
MountingDIN Rail
Volts AC277
Breaking capacity6 kA

Product details

The ABB S201-K20 is a 1-pole miniature circuit breaker from the S200 series, rated 20 A at 277 VAC with a Trip Curve K characteristic and a 6 kA interrupting capacity. It mounts on standard DIN rail — snaps into a panel enclosure alongside other S200-series protectors, sharing the same 1-module width per pole.

Approvals and compliance

Listed as a UL 1077 supplemental protector and CSA 22.2 compliant. These standards cover branch-circuit overcurrent protection for equipment — not service-entrance or feeder duty. The 6 kA interrupting rating at 277 VAC is tested per UL 1077 requirements.

Frequently asked questions

Where can I buy S201-K20 and how do I get a price?

The S201-K20 is available to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time.

What is S201-K20's listed amps and trip curve?

Rated 20 A with Trip Curve K, 1-pole, 277 VAC, 6 kA interrupting capacity.

Will S201-K20 drop into a panel specified around S201M-C3 without rewiring?

Both are 1-pole DIN-rail breakers from the S200 family with the same 1-module width and 277 VAC rating, so the S201-K20 is a mechanical fit in the same rail position. The difference is the trip curve: K vs. C. Curve C trips faster on inrush — verify the load's start-up characteristic before swapping.

MPN
S201-K20