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ABB S201M-B16NA — 1-Pole MCB (DIN Rail)

ABB S201M-B16NA MCB, 1P B 16A, DIN Rail

MPNS201M-B16NA

ABB, S201M NA series, miniature circuit breaker, S201M-B16NA, 1 pole, 16 A, Trip Curve B, 277 VAC / 60 VDC, 6 kA interrupting capacity.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

S201M-B16NA — Specifications
ParameterValue
Amps16
TypeTrip Curve B
Poles1
MountingDIN Rail
Volts AC277
Volts DC60
Breaking capacity6 kA
Interrupt rating DC10 kA

Product details

The ABB S201M-B16NA is a 1-pole miniature circuit breaker from the S201M NA series, rated 16 A with a Trip Curve B characteristic. The 16 A rating means it carries 16 A continuously without tripping; the B curve (3–5× In magnetic trip) makes it the right choice for resistive or general-purpose loads where inrush is low — lighting circuits, small heaters, control transformers. On a 277 VAC line it interrupts faults up to 6 kA; on 60 VDC circuits it handles 10 kA.

Deployment context

The 1-pole width (roughly 18 mm per pole on the S201M series) keeps panel fill factor tight — a 16 A B-curve MCB for a lighting subfeed or a small pump motor branch circuit.

Frequently asked questions

Where can I buy S201M-B16NA and how do I get a price?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is S201M-B16NA's listed amps and trip curve?

Rated 16 A with Trip Curve B (3–5× In magnetic trip), 1 pole, 277 VAC / 60 VDC.

Will S201M-B16NA drop into a panel specified around S201MUC-K25 without rewiring?

No — the S201MUC-K25 is a 25 A K-curve MCB (10–14× In), so the 16 A B-curve S201M-B16NA is a different rating and trip characteristic. Same DIN-rail footprint, but the branch circuit must be re-evaluated for the lower ampacity and different magnetic trip threshold.

MPN
S201M-B16NA