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Siemens 5SY4325-7 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SY4325-7 MCB, 3P, C-curve, 10 kA IEC/EN 608

MPN5SY4325-7
Active

Siemens SENTRON 5SY4325-7, 3-pole miniature circuit breaker, C-curve, 10 kA breaking capacity per IEC/EN 60898-1, 20 kA per IEC 60947-2, 400 V AC.

$26.67Ref. price · indicative, final on quote
Siemens 5SY4325-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4325-7 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY4325-7 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-220 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree3
5SY4325-7 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)2.2 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY4325-7 — 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
5SY4325-7 — 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 Siemens SENTRON 5SY4325-7 is a 3-pole miniature circuit breaker with a C tripping characteristic, rated for 400 V AC at 50/60 Hz.

Breaking capacity across standards

This breaker carries multiple interrupting ratings depending on the standard applied: 10 kA per IEC/EN 60898-1, 20 kA per IEC 60947-2, 15 kA at DC per IEC 60947-2 (60 V DC, max 72 V), and 5 kA per UL 1077 / CSA C22.2 No. 235.

Fastens via the quick-assembly system — snaps onto the rail without tools. Mounting position is any orientation; supply cord position is also any, which simplifies wiring in tight enclosures.

Environmental and material specs

Rated for ambient temperatures from -40 °C to 75 °C, with humidity derating: max 95% RH at 55 °C, tapering to 35% RH at 75 °C. Halogen-free and silicon-free construction — important for panels in semiconductor fabs or clean rooms where outgassing can contaminate optics or contacts. Sealable terminals (top and bottom combined) allow lockout/tagout compliance.

Frequently asked questions

What are the key breaking capacity ratings?

10 kA per IEC/EN 60898-1, 20 kA per IEC 60947-2, 15 kA at DC per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No. 235.

What is the physical size and mounting?

3 modular width units (54 mm wide), 76 mm deep, 90 mm tall. Snaps onto DIN rail via the quick-assembly system. Any mounting position allowed.

What standards does it comply with?

IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 / CSA C22.2 No. 235.

Is it halogen-free and silicon-free?

Yes, both halogen-free and silicon-free, suitable for clean-room or sensitive-environment panels.

MPN
5SY4325-7