ABB S281U-K1, Din Rail Mount Circuit Breaker, current production, 0.45 kgs.
S281U-K1 by ABB, Din Rail Mount Circuit Breaker, Current Pro
MPNS281U-K1
ABB S281U-K1, Din Rail Mount Circuit Breaker, current production, 0.45 kgs.
$96.91Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.45 kgs |
Product details
Frequently asked questions
Where can I buy S281U-K1 and how do I get a price?
S281U-K1 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
When sourcing S281U-K1, what's the closest functional second-source — S273-K40A?
The closest peer is the S273-K40A, also a din rail mount circuit breaker at the same 0.45 kgs weight. The S281U-K1 is a single-pole breaker; the S273-K40A is three-pole. They are not drop-in replacements — pole count determines fit.
Will S281U-K1 drop into a panel that was specified around S273-K40A without rewiring?
No. The S281U-K1 is a single-pole breaker; the S273-K40A is three-pole. The bus bars and load wiring differ — rewiring is required.
What compliance documentation does this brand provide for S281U-K1 (RoHS, REACH, UL, IEC)?
ABB typically provides RoHS and REACH declarations, plus UL and IEC certifications for its din rail circuit breaker family. Specific documentation for the S281U-K1 should be confirmed at quote time.
MPN
S281U-K1