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Siemens 5SY4310-7CV — 3-Pole MCB (DIN Rail)

Siemens 5SY4310-7CV MCB, 3P C-10A 15kA IEC 60947-2

MPN5SY4310-7CV

Siemens 5SY4310-7CV miniature circuit breaker, 3-pole, C tripping characteristic, 10 A rated at 35 °C, 15 kA breaking capacity per IEC 60947-2, IP20 with connected conductors.

Siemens 5SY4310-7CV datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4310-7CV — Identification
ParameterValue
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY4310-7CV — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per IEC 60947-215 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY4310-7CV — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Power loss per pole at rated current (AC, hot)1.1 W
Neutral conductor switchingNo
5SY4310-7CV — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
Fastening methodQuick assembly system
SealableYes
Accepts supplementary devicesYes
5SY4310-7CV — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
Vibration resistance (IEC 60068-2-6)±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz

Product details

The 5SY4310-7CV: The 10 A rating is at 35 °C ambient. At 40 °C it derates to 9.27 A; at 50 °C to 8.5 A; at 55 °C to 8.04 A. If your panel internal ambient runs hot — say a crowded enclosure with drives — size the upstream protection for the derated value, not the 35 °C sticker. The operating range spans -40 °C to 75 °C, with humidity limits of 95% up to 55 °C, tapering to 35% at 75 °C. That covers most indoor industrial environments including unheated warehouses.

Mounting position is any orientation. The combined terminal top and bottom (both accessible) makes daisy-chaining or looping feed-through straightforward in a multi-pole assembly.

Designed to IEC / EN 60947-2, overvoltage category III, pollution degree 3. Halogen-free and silicon-free construction.

Frequently asked questions

Will 5SY4310-7CV drop into a panel specified for 5SY4110-7CV?

Both are 3-pole C-curve MCBs in the same 5SY7 family, same 54 mm width and DIN-rail mounting. The 5SY4310-7CV is rated 10 A / 15 kA; the 5SY4110-7CV is a different amp rating. If the amp rating matches your BOM, the footprint and wiring are identical — no rewiring needed.

What compliance standards does 5SY4310-7CV meet?

IEC / EN 60947-2, overvoltage category III, pollution degree 3. Halogen-free and silicon-free construction.

MPN
5SY4310-7CV