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Siemens 5SN6425-7CP — 4-Pole MCB (DIN Rail)

Siemens 5SN6425-7CP SENTRON MCB, 4-Pole, 6kA/15kA, 400V AC

MPN5SN6425-7CP

Siemens SENTRON 5SN series, MCB 5SN, 4-pole miniature circuit breaker, 400 V AC, 72 V DC, 6 kA (EN 60898) / 15 kA (IEC 60947-2), 50 Hz, 4 modular width units.

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

Specifications

5SN6425-7CP — Ratings
ParameterValue
Number of poles4
Rated voltage, AC (multi-phase)440 V
5SN6425-7CP — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
5SN6425-7CP — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)2.2 W

Product details

Siemens 5SN6425-7CP — SENTRON 4-Pole MCB for Panel and Infrastructure Duty

The Siemens 5SN6425-7CP is a 4-pole miniature circuit breaker from the SENTRON 5SN family, rated for 400 V AC at 50 Hz and 72 V DC maximum. The 4-modular-width (72 mm) body snaps onto standard DIN rail, occupying four 18 mm slots. With a mechanical life of 10 000 operating cycles and a per-pole power loss of 2.2 W in hot state, it's built for continuous duty in distribution boards, subpanels, and machine control cabinets. The solid conductor cross-section accepts up to 35 mm², making it suitable for both feeder and branch-circuit wiring.

Breaking Capacity — What the Dual Rating Means for Your Panel

The 6 kA rating under EN 60898 covers standard overcurrent protection in residential and commercial final circuits.

Mounting and Integration — DIN-Rail, 4 MW, 76 mm Deep

The 72 mm width occupies four modular-width units, leaving room for adjacent breakers or accessories in a multi-pole panel layout.

Frequently asked questions

What are the key ratings of 5SN6425-7CP?

4 poles, 400 V AC at 50 Hz, 72 V DC max, breaking capacity 6 kA per EN 60898 and 15 kA per IEC 60947-2, 4 modular width units, wire up to 35 mm² solid, operating temperature -40 °C to 75 °C.

Will 5SN6425-7CP drop into a panel specified around 5SL3640-7MB?

Both share the same 76 mm depth, 72 mm width (4 MW), 90 mm height, and DIN-rail mount, so the physical fit is identical. The 5SL3640-7MB carries a lower 4.5 kA breaking capacity (EN 60898 and IEC 60947-2) versus 6 kA / 15 kA on the 5SN6425-7CP, and its mechanical life is 20 000 cycles versus 10 000. For a panel where the fault-current requirement is 6 kA or higher, the 5SN6425-7CP is the better choice.

Where can I buy 5SN6425-7CP and how is it quoted?

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

MPN
5SN6425-7CP