The Siemens 5SY43-MCB-C5 is a DIN rail mount miniature circuit breaker (MCB) in the 5SY4 series, sized for panelboard and distribution-board protection in commercial and industrial control panels. Rated for 50/60 Hz systems, it snaps onto a standard 35 mm DIN rail — the same footprint as the broader 5SY family — so a panel builder can slot it alongside contactors, relays, and terminal blocks without re-laying the rail.
Siemens 5SY43-MCB-C5 MCB, DIN Rail Mount Circuit Breaker
MPN5SY43-MCB-C5
Siemens 5SY43-MCB-C5, DIN rail mount miniature circuit breaker, current-production, 0.45 kg.
$337.67Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.45 kgs |
Product details
MPN
5SY43-MCB-C5