The S804U-K100 is a 4-pole miniature circuit breaker from the ABB S800 series, with a K-trip curve rated at 100 A. The K-curve means it tolerates the inrush of motor and transformer loads without nuisance tripping while still clearing short circuits fast — a common choice for branch circuits feeding pumps, conveyors, or small compressors in a control panel.
S804U-K100 MCB, 4P, K-curve, 100A, current production
MPNS804U-K100
ABB S800 series, S804U-K100, 4-pole MCB, K-curve, 100A, current lifecycle stage.
$628.76Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.91 kgs |
Product details
Frequently asked questions
Will S804U-K100 drop into a panel specified around 1SDA050917R1 without rewiring?
Not directly. The 1SDA050917R1 is a different ABB MCCB variant at 0.45 kg; the S804U-K100 is a 4-pole MCB with a K-curve and 100 A rating. Footprint, mounting, and accessory compatibility differ — verify panel cutout and busbar layout before substituting.
Where can I buy S804U-K100 and what is the lead time?
Sourced to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — no blanket lead time applies. Submit an RFQ for a firm ETA.
MPN
S804U-K100