The ABB S272-K1A is a 1-pole miniature circuit breaker from the System pro M compact S272 series, rated at 1 A with a K-tripping characteristic. It mounts on a standard DIN rail in a distribution board or sub-panel, sized for protecting semiconductor loads, motor circuits, or transformer primaries where the K-curve's higher magnetic trip threshold (10–14× In) avoids nuisance trips from inrush currents.
ABB S272-K1A Din Rail MCB, 1-Pole, K-Curve, 1A
MPNS272-K1A
ABB, System pro M compact S272 series, miniature circuit breaker, 1-pole, K-curve, 1 A, DIN rail mount, 0.23 kg.
$48.53Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.23 kgs |
Product details
Frequently asked questions
Where can I buy S272-K1A and how do I get a price?
The S272-K1A is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing, confirmed at quote time.
Will S272-K1A drop into a panel specified around S282-K32A without rewiring?
No. The S282-K32A is a 2-pole, 32 A breaker; the S272-K1A is 1-pole, 1 A. The pole count, current rating, and busbar arrangement differ — the panel would require rewiring and a different DIN-rail layout.
MPN
S272-K1A