The ABB S282UC-K20 is a 2-pole miniature circuit breaker from the S280UC series, rated 20 A with a Trip Curve K characteristic and a maximum voltage of 500 VDC. The K curve means it tolerates the inrush from inductive loads like solenoids and small DC motors without nuisance tripping — useful in DC control circuits or battery-backed supplies where the startup surge would pop a C-curve breaker.
S282UC-K20 ABB MCB 2P K 20A 500VDC DIN Rail
MPNS282UC-K20
ABB S280UC series, MCB, 2-pole Trip Curve K 20 A 500 VDC, DIN rail mount.
$327.44Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 20 |
| Type | Trip Curve K |
| Poles | 2 |
| Mounting | DIN Rail |
Product details
Frequently asked questions
Is S282UC-K20 available via RFQ confirmation and what is the lead time for an order?
The part is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels.
When sourcing S282UC-K20, what's the closest functional second-source — S202M-C20?
The S202M-C20 is a 2-pole, 20 A breaker but with a C curve and lower DC voltage rating (125 VDC vs 500 VDC). It will not directly replace the S282UC-K20 in a 500 VDC circuit; the S282UC-K20 is the correct part for DC applications above 125 V.
Will S282UC-K20 drop into a panel that was specified around S202M-C20 without rewiring?
Both mount on DIN rail and share the same 2-pole form factor, so mechanical fit is the same. However, the S202M-C20 is rated for 277 VAC / 125 VDC, while the S282UC-K20 is rated for 500 VDC. If the panel uses DC circuits above 125 V, the S282UC-K20 is required and the S202M-C20 cannot be substituted.
MPN
S282UC-K20