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Siemens 5SY4263-7CC — 2-Pole MCB (DIN Rail)

Siemens 5SY4263-7CC SENTRON MCB, 63A 2P C-Curve, 10kA

MPN5SY4263-7CC

Siemens SENTRON 5SY4263-7CC miniature circuit breaker, 63 A, 2-pole, C-curve, 10 kA (EN 60898), 5 kA (UL 1077), 50/60 Hz.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4263-7CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY4263-7CC — Electrical
ParameterValue
Number of poles2
5SY4263-7CC — Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY4263-7CC — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SY4263-7CC — Environmental
ParameterValue
Pollution degree3
5SY4263-7CC — Specifications
ParameterValue
Energy Limitation Class3

Product details

63 A C-curve MCB for branch-circuit protection

That C-curve means it holds through moderate inrush — typical for motor starters, contactor coils, and transformer primaries — and trips fast on a hard short. Rated frequency is 50/60 Hz. This is a current-production part (lifecycle stage: current).

Temperature derating and mounting

Above that, derate: 60.04 A at 40 °C, 58.46 A at 45 °C, 56.89 A at 50 °C, 55.25 A at 55 °C. Mount in any position on DIN rail (quick-assembly system, 2 modular width units). Depth is 76 mm, width 36 mm, height 90 mm, installation depth 70 mm.

Rated per EN 60898 (10 kA) and UL 1077 / CSA C22.2 No.235 (5 kA). Halogen-free, silicon-free, sealable terminals top and bottom. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Energy limitation class 3. Suitability noted for mechanical engineering and industry applications.

Frequently asked questions

What is the breaking capacity of 5SY4263-7CC?

10 kA per EN 60898 at AC; 5 kA per UL 1077 and CSA C22.2 No.235.

Where can I buy 5SY4263-7CC?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the temperature derating for 5SY4263-7CC?

Rated 63 A at 40 °C; derates to 60.04 A at 40 °C, 58.46 A at 45 °C, 56.89 A at 50 °C, and 55.25 A at 55 °C.

MPN
5SY4263-7CC