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Siemens 5SY4325-8CC — 3-Pole MCB (DIN Rail)

Siemens 5SY4325-8CC SENTRON MCB, 3P 25A D-Curve, 10kA

MPN5SY4325-8CC

Siemens SENTRON 5SY4 series, miniature circuit breaker, 3-pole, 25 A, D characteristic, 400 V AC, 10 kA EN 60898, 5 kA UL 1077, IP20.

Siemens 5SY4325-8CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4325-8CC — Identification
ParameterValue
Design / model code5SY4CC
Brand nameSENTRON
Number of poles3
Suitability for operationMechanical engineering / industry
5SY4325-8CC — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 6089810 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
5SY4325-8CC — Electrical
ParameterValue
Rated current (AC)400 V
Rated voltage (AC, multi-phase)440 V
Rated frequency50/60 Hz
5SY4325-8CC — Mechanical
ParameterValue
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
SealableYes
5SY4325-8CC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

Breaking capacity and approvals

Rated breaking capacity hits 10 kA per EN 60898 at 400 V AC, and 5 kA per UL 1077 and CSA C22.2 No.235 — so it's certified for both IEC and North American panel builds. Overvoltage category III means it's rated for fixed-installation distribution boards, not just final circuits. The lifecycle stage is current production.

Mounts via quick-assembly system (DIN rail) in any position, occupying 3 width units (54 mm). Combined terminals top and bottom simplify busbar and outgoing wiring.

Environmental and derating

Rated for -40 °C to 75 °C ambient, with humidity derating: 95% RH up to 55 °C, then 55% RH up to 70 °C, then 35% RH up to 75 °C. Halogen-free and silicon-free construction. Mechanical service life typical 10,000 switching cycles.

Frequently asked questions

What is the breaking capacity of 5SY4325-8CC?

10 kA per EN 60898 at 400 V AC, and 5 kA per UL 1077 and CSA C22.2 No.235.

What does the D tripping characteristic mean for this MCB?

The D-curve trips magnetically at 10 to 20 times the rated current (25 A), so it's intended for loads with high inrush like motors, transformers, or welding equipment.

Will 5SY4325-8CC fit a panel designed for 5SY6613-8?

Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY6613-8 is a different series with different ratings. Check the specific width (54 mm / 3 width units) and depth (76 mm) against your panel layout — the physical envelope matches, but the electrical ratings differ.

Where can I buy 5SY4325-8CC?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
5SY4325-8CC