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Siemens 5SY4306-7CV — Miniature Circuit Breakers (MCB)

Siemens 5SY4306-7CV MCB, 3P C6, 15kA 400V

MPN5SY4306-7CV

Siemens 5SY series, 5SY4306-7CV, miniature circuit breaker, 3-pole, C-curve, 6 A rated current, 15 kA breaking capacity at 400 V AC.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

Its headline rating is a 15 kA breaking capacity (Icu) at 400 V AC.

Snap-on DIN-rail mount — fits standard 35 mm rail in any distribution board or control panel. The 3-pole footprint occupies three modular-width spaces (3 x 17.8 mm).

It is rated per IEC 60898-1 and IEC 60947-2, so it meets both residential and industrial standard requirements. No IP rating is listed; standard MCBs are intended for dry indoor enclosures (IP4X minimum in the panel).

Frequently asked questions

What is the breaking capacity of 5SY4306-7CV?

Rated breaking capacity (Icu) is 15 kA at 400 V AC. This is the maximum fault current the breaker can safely interrupt under standard test conditions.

MPN
5SY4306-7CV