ABB, S203M-B40, Miniature Circuit Breaker, 3-pole B-curve, 0.17 kg, DIN rail mount.
ABB S203M-B40 Miniature Circuit Breaker, 3-Pole B-Curve
MPNS203M-B40
ABB, S203M-B40, Miniature Circuit Breaker, 3-pole B-curve, 0.17 kg, DIN rail mount.
$25.40Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.17 kgs |
Product details
Frequently asked questions
Where can I buy S203M-B40 and how do I get a price?
This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.
Will S203M-B40 drop into a panel specified around SH201T-C16?
The SH201T-C16 is a single-pole MCB (0.06 kg), while the S203M-B40 is a 3-pole unit (0.17 kg). They share the same DIN-rail mounting and ABB System pro M compact form factor, so the physical clip-on interface is identical. However, the pole count and rating differ — verify the circuit's phase and current requirements before swapping.
MPN
S203M-B40