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Siemens 5SN6404-7CP — 4-Pole MCB (DIN Rail)

Siemens 5SN6404-7CP SENTRON MCB, 4-Pole, 6kA/30kA Breaking C

MPN5SN6404-7CP

Siemens SENTRON 5SN series, MCB 5SN, 4-pole, 400 V AC, 50 Hz, 6 kA (EN 60898) / 30 kA (IEC 60947-2), 4 modular width units.

Siemens 5SN6404-7CP datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SN6404-7CP — Ratings
ParameterValue
Number of poles4
Rated voltage, AC (multi-phase)440 V
5SN6404-7CP — 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
5SN6404-7CP — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)1.3 W

Product details

Dimensions, DIN Rail Fit, and Wiring

The 5SN6404-7CP: At 72 mm wide by 90 mm tall by 76 mm deep (70 mm installation depth behind the panel), this breaker occupies 4 modular width units on a standard DIN rail. Solid conductors up to 35 mm² are accepted — sufficient for most distribution-level feeds through a 4-pole device.

Dual Breaking Capacity and DC Capability

The 6 kA rating under EN 60898 covers residential and light commercial branch circuits. For DC circuits, the maximum rated voltage is 72 V, which limits its use to low-voltage DC control buses or battery-backed loads; it is not a DC string combiner breaker for PV arrays.

Environmental and Thermal Profile

Frequently asked questions

What are the key ratings for 5SN6404-7CP?

4-pole, 400 V AC, 50 Hz. Breaking capacity: 6 kA per EN 60898, 30 kA per IEC 60947-2. Maximum DC voltage: 72 V. Occupies 4 modular width units on DIN rail.

Will 5SN6404-7CP drop into a panel specified around 5SY5416-7?

Mechanically yes — both share the same 72 mm width, 76 mm depth, 70 mm installation depth, and 4-module DIN footprint. The 5SY5416-7 is a higher-rated variant (10 kA per EN 60898, 880 V DC) with a different tripping characteristic; verify the curve and voltage class before substituting.

How do I get current pricing and availability for 5SN6404-7CP?

Submit an RFQ through this listing. As an active-production part, we source it against your required quantity and ship date, confirming price and lead time at quote — no stale web price, no phantom stock.

MPN
5SN6404-7CP