Panel integration
Snap-on mounting to standard 35 mm DIN rail per EN 60715; occupies one module width (17.8 mm) in the distribution board or railway sub-distribution panel.
Siemens 5SY4120-8CC11 MCB, 1-pole D 20A, 10kA, railway
MPN5SY4120-8CC11
Siemens 5SY4120-8CC11, miniature circuit breaker 230/400 V 10kA, 1-pole, D, 20A for railway applications.
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Product details
Frequently asked questions
What are the key ratings of the 5SY4120-8CC11?
It is a 1-pole miniature circuit breaker rated 230/400 V, 10 kA breaking capacity, D-curve, 20 A, designed for railway applications.
MPN
5SY4120-8CC11