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Siemens 5SY3025-7 — 1-Pole MCB (DIN Rail)

Siemens 5SY3025-7 SENTRON MCB, 1P+N, C-25A, 4.5kA

MPN5SY3025-7

Siemens SENTRON 5SY3025-7 miniature circuit breaker, 1P+N, C-curve, 25 A rated current, 4.5 kA breaking capacity at 230 V AC, 1 module width (18 mm).

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

Specifications

5SY3025-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SY3025-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)4.5 kA
Overvoltage categoryIII
5SY3025-7 — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topNo
Combined terminal, bottomNo
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY3025-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

Siemens SENTRON 5SY3025-7 — 25 A C-curve MCB, 1P+N, 4.5 kA

The 4.5 kA breaking capacity per EN 60898 covers residential and light commercial branch circuits where fault current stays within that threshold — typical for most 230 V distribution boards in Europe and markets following IEC 60898.

The 25 A rated current is the continuous load the breaker carries without tripping at 30 °C ambient. The 1P+N pole configuration switches the phase and disconnects the neutral — the neutral pole is not a protected pole, so it does not provide overcurrent protection on neutral, only isolation.

The 18 mm width equals one modular unit, so it fits a standard distribution board without crowding. The breaker is sealable for tamper-proofing after commissioning.

Frequently asked questions

What are the key ratings of the 5SY3025-7?

The 5SY3025-7 is a 1P+N miniature circuit breaker rated 25 A with a C-curve tripping characteristic, 4.5 kA breaking capacity at 230 V AC, and a mechanical service life of 10 000 switching cycles.

Will the 5SY3025-7 drop into a panel specified around the 5SY3025-7KL without rewiring?

Yes, the 5SY3025-7 and 5SY3025-7KL share identical dimensions (76 mm depth, 18 mm width, 90 mm height), the same 1P+N pole configuration, C-curve, and 25 A rating. The -7KL variant adds a neutral conductor switching feature and a slightly different breaking capacity rating (4.5 kA at 230 V for both). They are mechanically interchangeable on the same DIN rail footprint.

Where can I buy the 5SY3025-7 and get current pricing?

The 5SY3025-7 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and delivery commitment.

MPN
5SY3025-7