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Siemens 5SY4620-7CC11 — Miniature Circuit Breakers (MCB)

Siemens 5SY4620-7CC11 MCB, 400V 10kA 3+N C 20A Railway

MPN5SY4620-7CC11

Siemens 5SY4620-7CC11 miniature circuit breaker, 400 V 10 kA, 3+N-pole, C-curve, 20 A, for railway applications.

Siemens 5SY4620-7CC11 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

For a BOM line requiring a railway-certified 3+N MCB at 20 A, this order code is the direct fit — no substitution needed.

Three poles plus a switched neutral (3+N) makes it suitable for three-phase plus neutral circuits typical in rail vehicle auxiliary supplies or station power distribution. The 20 A rating and C-curve handle the start-up draw of HVAC compressors, lighting ballasts, or battery chargers found in railway environments without nuisance tripping.

Frequently asked questions

Where can I buy 5SY4620-7CC11?

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 C-curve mean on this breaker?

The C-curve trips at 5 to 10 times rated current (100–200 A for this 20 A unit), designed for moderate inrush loads like small motors or transformers without nuisance tripping.

MPN
5SY4620-7CC11