Panel Fit & Peer Comparison
Single-pole breaker; three-pole S273-K6A (6 A) or S273-K40A (40 A) differ in pole count and current rating. The S281-K20 is a single-pole device for line protection, not three-phase.
ABB S281-K20 20A DIN Rail MCB, Current Lifecycle
MPNS281-K20
ABB, System pro M compact, S281-K20, 20 A, DIN rail miniature circuit breaker, 0.11 kgs.
$35.70Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.11 kgs |
Product details
Frequently asked questions
Will S281-K20 drop into a panel that was specified around S273-K6A without rewiring?
No — the S281-K20 is a single-pole breaker, while the S273-K6A is three-pole. The busbar and phase wiring would need to be reconfigured to match the single-pole layout.
MPN
S281-K20