Its job is to protect downstream wiring and loads against overcurrent and short circuits, tripping on the K characteristic curve — meaning it's sized for inductive or motor-starting loads where a brief inrush won't nuisance-trip the breaker.
ABB S401M-K32 1-Pole DIN Rail MCB, Current Production
MPNS401M-K32
ABB S401M-K32, 1-pole DIN rail miniature circuit breaker, current production, 0.05 kg.
$36.83Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.05 kgs |
Product details
Frequently asked questions
Where can I buy S401M-K32?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Will S401M-K32 drop into a panel specified around SH201T-C16?
Both are 1-pole DIN rail MCBs sharing the same mounting footprint, so mechanical fit is identical. The difference is the trip curve — S401M-K32 uses a K curve for inductive loads, while SH201T-C16 uses a C curve for general-purpose loads. Verify the curve matches your load type before swapping.
MPN
S401M-K32