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Siemens 5SY4550-7CC11 — Miniature Circuit Breakers (MCB)

Siemens 5SY4550-7CC11 Miniature Circuit Breaker, C-curve, 50 A, 10 kA

MPN5SY4550-7CC11

Siemens 5SY4550-7CC11 miniature circuit breaker, 230 V 10kA, 1+N-pole, C-curve, 50 A, for railway applications.

Siemens 5SY4550-7CC11 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

This is standard for single-phase railway AC circuits where neutral isolation is required for maintenance safety, but it does not provide neutral-fault protection — that stays with the upstream RCD or ground-fault relay.

The 5SY4550-7CC11 lifecycle stage is current.

Frequently asked questions

What is the breaking capacity of the 5SY4550-7CC11?

The 5SY4550-7CC11 is rated for 10 kA breaking capacity at 230 V AC.

MPN
5SY4550-7CC11