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ABB S281-K16A — Miniature Circuit Breakers (MCB)

ABB S281-K16A Circuit Breaker, 16A K-Char DIN Rail MCB

MPNS281-K16A

ABB, S280 series, miniature circuit breaker (MCB), S281-K16A, 16 A, K-characteristic, DIN rail mount, 0.14 kg.

$54.04Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

S281-K16A — Specifications
ParameterValue
Weight0.14 kgs

Product details

The ABB S281-K16A is a single-pole miniature circuit breaker from the S280 series, rated 16 A with a K-characteristic trip curve. It snaps onto standard DIN rail and is used for protecting branch circuits in distribution panels and control cabinets against overload and short circuit. The K-characteristic means the magnetic trip threshold is 8–12× In, making it suitable for loads with moderate inrush — motor starters, transformers, or lighting banks where a B- or C-curve might nuisance trip on startup. For a 16 A breaker, that translates to a magnetic trip between 128 A and 192 A.

Lifecycle and Sourcing

For volume or BOM-freeze purchases, this part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Frequently asked questions

Who supplies S281-K16A and how is it quoted for volume purchases?

The S281-K16A is supplied through independent distribution. Volume purchases are quoted to order against an RFQ — availability and current pricing are confirmed at quote time.

Will S281-K16A drop into a panel that was specified around S273-K6A without rewiring?

No. The S281-K16A is a single-pole breaker, while the S273-K6A is a three-pole breaker. They have different pole counts and current ratings, so a direct swap without rewiring and circuit re-coordination is not possible.

MPN
S281-K16A