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Siemens 5SY4115-8CV — 1-Pole MCB (DIN Rail)

Siemens 5SY4115-8CV MCB, 1P D1.6, 15kA Icu 230/400V

MPN5SY4115-8CV

Siemens 5SY series MCB, 1-pole D-curve 1.6 A, Icu 15 kA at 230/400 V AC, current-production lifecycle.

Siemens 5SY4115-8CV datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

The Siemens 5SY4115-8CV is a 1-pole miniature circuit breaker from the 5SY series, rated at 1.6 A with a D tripping characteristic.

At 1.6 A, this is a relatively low-current D-curve MCB, suited for protecting small motor circuits or control transformers where the inrush is several times the rated load but the steady-state draw stays under 1.6 A. That is a high interrupting rating for a 1.6 A MCB — it gives selectivity headroom downstream of a larger upstream breaker and meets the SCCR requirements of most industrial panel designs per IEC 60947-2.

The D1.6 rating is printed on the front toggle; the terminal clamps accept up to 25 mm² conductor for the load side.

Frequently asked questions

What is the breaking capacity of the 5SY4115-8CV?

The listed Icu is 15 kA at both 230 V and 400 V AC, which is the maximum fault current the breaker can safely interrupt under short-circuit conditions.

What does the D-curve mean on this 1.6 A MCB?

The D-curve trips magnetically at 10 to 20 times the rated current (16 to 32 A), so it tolerates the high inrush of small motors, transformers, or capacitive loads without nuisance tripping.

Where can I buy the 5SY4115-8CV and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote — no stock or lead-time figure is published here.

MPN
5SY4115-8CV