The ABB S802C-K40 is a 2-pole miniature circuit breaker from the S800C series, rated 40 A with a Trip Curve K characteristic. Trip Curve K means the magnetic trip threshold sits between 8x and 12x the rated current — designed for inductive loads like motors and transformers where the inrush peak is higher than resistive loads but lower than what Curve D handles. The interrupting rating is 15 kA at 230 VAC and 10 kA at 250 VDC, which determines the maximum fault current the breaker can safely clear without welding contacts or rupturing the case.
ABB S802C-K40 MCB 2P Trip Curve K 40A, 15 kA
MPNS802C-K40
ABB S800C series MCB, 2-pole, Trip Curve K, 40 A, 230 VAC / 250 VDC, 15 kA interrupting rating AC, DIN rail mount.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 40 |
| Type | Trip Curve K |
| Poles | 2 |
| Mounting | DIN Rail |
| Volts AC | 230 |
| Volts DC | 250 |
| Breaking capacity | 15 kA |
| Interrupt rating DC | 10 kA |
Product details
Frequently asked questions
What is S802C-K40's listed amps?
The S802C-K40 is rated 40 A continuous current.
What does Trip Curve K mean on this MCB?
Trip Curve K means the magnetic trip threshold is 8x to 12x the rated current, designed for inductive loads such as motors and transformers where inrush current is higher than resistive loads.
Will S802C-K40 drop into a panel specified around S202M-B10?
No. The S802C-K40 is a 40 A, Curve K breaker with 15 kA interrupting rating, while the S202M-B10 is a 10 A, Curve B breaker with 6 kA interrupting rating. The ratings differ significantly, so a full coordination review is required before substitution.
MPN
S802C-K40