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Siemens 5SN6450-7CP — 4-Pole MCB (DIN Rail)

Siemens 5SN6450-7CP MCB, 4P, 400V AC, 6kA EN 60898

MPN5SN6450-7CP

Siemens SENTRON 5SN series, MCB 5SN, 4-pole miniature circuit breaker, 400 V AC, 50 Hz, 6 kA (EN 60898) / 10 kA (IEC 60947-2), width 72 mm, depth 76 mm, height 90 mm.

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Siemens 5SN6450-7CP datasheet (PDF)

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

Specifications

5SN6450-7CP — Ratings
Parameter	Value
Number of poles	4
Rated voltage, AC (multi-phase)	440 V

5SN6450-7CP — Mechanical
Parameter	Value
Width in modular units	4
Width	72 mm
Height	90 mm
Depth	76 mm
Installation depth	70 mm
Tightening torque, max.	75 °C
Tightening torque, min.	-40 °C

5SN6450-7CP — Performance
Parameter	Value
Power loss per pole, AC (hot state, at In)	3.8 W

Product details

The Siemens 5SN6450-7CP is a 4-pole miniature circuit breaker from the SENTRON 5SN series, rated at 400 V AC at 50 Hz. The 4-pole design with a 72 mm width (4 modular units) fits standard DIN-rail distribution boards. Terminal capacity accepts up to 35 mm² solid conductor.

Integration note — panel fit

Snap-on DIN rail mount, 70 mm installation depth. The 76 mm overall depth includes the front projection — verify clearance against the enclosure door or busbar shroud.

Compliance and approvals

Rated according to both EN 60898 (household and similar installations) and IEC 60947-2 (industrial switchgear). The dual rating means it can be specified in either a residential distribution board or an industrial panel, as long as the fault level is within the respective limit.