Snap-on DIN rail mounting, standard 4-pole width (72 mm at 18 mm per pole). The D-curve characteristic (10–20× In magnetic trip) suits loads with high inrush — small transformers, solenoid banks, or motor control circuits where a B- or C-curve would nuisance-trip on startup. For a 1.6 A rating, that means the magnetic trip threshold sits between roughly 16 A and 32 A, well above the steady-state rating but still fast enough to clear a hard short.
Siemens 5SY4415-8CV MCB, 15kA 400V 4P D1.6
MPN5SY4415-8CV
Siemens 5SY series MCB, 5SY4415-8CV, 4-pole D-curve 1.6 A, 15 kA breaking capacity at 400 V AC.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is the breaking capacity of 5SY4415-8CV?
The rated ultimate breaking capacity (Icu) is 15 kA at 400 V AC, 4-pole configuration.
Where can I buy 5SY4415-8CV?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What does the D-curve on this MCB mean?
The D-trip curve means the magnetic trip operates at 10 to 20 times the rated current (16–32 A for this 1.6 A unit), making it suitable for loads with high inrush current like small transformers or solenoid valves.
MPN
5SY4415-8CV