Snap-on mounting to 35 mm DIN rail per EN 60715; the 4-pole width (4 modules at 18 mm each) occupies 72 mm of rail space. Rated for 400 V line-to-line, so it handles three-phase plus neutral protection in a single housing.
Siemens 5SY4401-7CC11 MCB 400V 10kA 4P C 1A Railway
MPN5SY4401-7CC11
Siemens 5SY4401-7CC11, miniature circuit breaker, 400 V 10kA, 4-pole, C-curve, 1 A, for railway applications.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is 5SY4401-7CC11's listed description?
It is a miniature circuit breaker rated 400 V, 10 kA, 4-pole, C-curve, 1 A, designed for railway applications.
Where can I buy 5SY4401-7CC11?
This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
MPN
5SY4401-7CC11