Skip to main content
Log in
Siemens 5SY4505-7CV — 1-Pole MCB (DIN Rail)

Siemens 5SY4505-7CV MCB, 15kA 230/400V 1P+N C0.5

MPN5SY4505-7CV

Siemens 5SY4505-7CV, MCB, Icu=15kA 230/400V, 1P+N, C0.5 characteristic, current lifecycle stage.

Siemens 5SY4505-7CV datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

Rating and fit

The Siemens 5SY4505-7CV is a 1-pole-plus-neutral miniature circuit breaker rated for Icu=15kA at 230/400V AC. The C0.5 characteristic means the magnetic trip operates at 5 to 10 times rated current (0.5 A), so it clears short-circuit faults fast while riding through motor inrush or capacitive loads that a B-curve would nuisance-trip on.

Deployment context

The 1P+N format switches the line conductor only; the neutral bar passes through unswitched. Use it to protect a single-phase 230 VAC branch circuit — lighting, control transformer primary, or a PLC power supply — where the load draws under 0.5 A continuous and the available fault current doesn't exceed 15 kA.

Frequently asked questions

What is 5SY4505-7CV's interrupting capacity at 230/400V?

The rated ultimate short-circuit breaking capacity (Icu) is 15 kA at 230/400V AC.

What does the C0.5 designation mean on this MCB?

C0.5 means a rated current of 0.5 A with a C-trip curve: the magnetic release trips at 5 to 10 times rated current, suited for moderate inrush loads like small transformers or capacitor banks.

Where can I buy 5SY4505-7CV and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
5SY4505-7CV