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Siemens 5SY5150-7CC11 — 1-Pole MCB (DIN Rail)

Siemens 5SY5150-7CC11 SENTRON MCB, 50A C-Curve DC Railway

MPN5SY5150-7CC11

Siemens SENTRON 5SY5150-7CC11, miniature circuit breaker, 1-pole, C characteristic, 50 A, 10 kA DC at 220 V, for railway applications.

Siemens 5SY5150-7CC11 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY5150-7CC11 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityRailway
5SY5150-7CC11 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY5150-7CC11 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY5150-7CC11 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SY5150-7CC11 is a 1-pole miniature circuit breaker rated 50 A with a C tripping characteristic, designed for DC railway applications per IEC 60947-2. It delivers a 10 kA breaking capacity at 220 V DC, with a maximum operating voltage of 250 V DC — the rating that governs its fit for DC traction auxiliary circuits, battery banks, and wayside power distribution where the fault current can reach that level.

Installation depth is 70 mm; the overall body depth is 76 mm, which clears most standard 80 mm-deep enclosures. IP20 with connected conductors — finger-safe once wired, not for wet locations.

Frequently asked questions

Where can I buy 5SY5150-7CC11 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response.

What is the closest functional second-source to 5SY5150-7CC11?

The closest functional peer within the SENTRON family is the 5SY4116-7CV, but it is an AC-only breaker rated 230 V AC with a 15 kA breaking capacity. The 5SY5150-7CC11 is a DC-rated railway breaker at 220 V DC / 10 kA — they are not drop-in equivalents. The 5SY5240-7 is a 2-pole universal-current (AC/DC) breaker but at 40 A and 2-module width, so it does not match the 1-pole 50 A DC railway spec.

Will 5SY5150-7CC11 drop into a panel specified around 5SY4116-7CV without rewiring?

Physically yes — both are 1-pole, 18 mm wide, same DIN-rail quick-assembly system, same 76 mm depth. Electrically no: the 5SY4116-7CV is an AC-only breaker (230 V, 15 kA per IEC 60947-2) with a 72 V DC maximum, while the 5SY5150-7CC11 is a DC railway breaker rated 220 V DC at 10 kA. Swapping them without verifying the circuit voltage and polarity would be unsafe.

What compliance documentation does Siemens provide for 5SY5150-7CC11?

The breaker is halogen-free and silicon-free, which supports RoHS and REACH compliance for rolling stock. It is designed to IEC 60947-2 for DC railway applications. Specific declarations (CE, UKCA, UL) are not listed in the spec record for this variant — verify with the manufacturer for project-specific documentation needs.

MPN
5SY5150-7CC11