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Siemens 5SY7225-7 — 2-Pole MCB (DIN Rail)

Siemens 5SY7225-7 SENTRON MCB, 2P C-curve, 15/25 kA, 400 VAC

MPN5SY7225-7
Active

Siemens SENTRON 5SY7225-7, 2-pole miniature circuit breaker, C tripping characteristic, 15 kA (EN 60898) / 25 kA (IEC 60947-2), 400 VAC, 2 MW, IP20.

Siemens 5SY7225-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY7225-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY7225-7 — Electrical
ParameterValue
Number of poles2
5SY7225-7 — Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY7225-7 — 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
5SY7225-7 — Environmental
ParameterValue
Pollution degree3
5SY7225-7 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value15 kA
With single-phase operation at AC rated value440 V
Energy Limitation Class3

Product details

Breaking capacity and dual-standard rating

The 5SY7225-7: Rated 15 kA under EN 60898-1 and 25 kA under IEC 60947-2 at 400 VAC, with a DC breaking capacity of 15 kA at 60 V (max 72 V) per IEC 60947-2. Under UL 1077 / CSA C22.2 No. 235 it carries 5 kA. The C-curve (5–10× In) handles moderate inrush — motor starters, lighting banks, transformer primaries — without nuisance trips on start-up.

Snap-on quick assembly system; mountable in any position.

Rated for ambient temperatures from -40 °C to 75 °C, with humidity derating above 55 °C (max 95% RH at 55 °C, tapering to 35% at 75 °C). Halogen-free and silicon-free construction. Sealable terminals (top and bottom combined) allow tamper-proofing in metered or safety-critical circuits.

Frequently asked questions

What is the breaking capacity of 5SY7225-7?

15 kA per EN 60898-1 at 400 VAC, 25 kA per IEC 60947-2 at 400 VAC, and 15 kA at 60 VDC per IEC 60947-2. Under UL 1077 it is rated 5 kA.

Will 5SY7225-7 drop into a panel specified around 5SY4140-7 without rewiring?

Both are 2-pole SENTRON MCBs in the same 36 mm (2 MW) DIN-rail footprint, so the mechanical swap is straightforward. However, 5SY7225-7 is a C-curve breaker while 5SY4140-7 is a B-curve — verify that the load's inrush characteristic matches the C-curve (5–10× In) before substituting, or nuisance tripping may occur on circuits originally designed for B-curve.

Where can I buy 5SY7225-7?

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

MPN
5SY7225-7