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Siemens 5SN6320-7CP — 3-Pole MCB (DIN Rail)

Siemens 5SN6320-7CP MCB, 3-Pole, 400 V AC, C-Curve, 6 kA

MPN5SN6320-7CP

Siemens SENTRON 5SN series, MCB 5SN6320-7CP, 3-pole, 400 V AC, C-curve, 6 kA (EN 60898) / 15 kA (IEC 60947-2), 72 V DC max, 3 MW units.

Siemens 5SN6320-7CP datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SN6320-7CP — Identification
ParameterValue
Number of poles3
5SN6320-7CP — Protection
ParameterValue
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-215 kA
5SN6320-7CP — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Power loss per pole at rated current (AC, hot)1.7 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)440 V
5SN6320-7CP — Mechanical
ParameterValue
Modular width units3
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C

Product details

The Siemens 5SN6320-7CP is a 3-pole miniature circuit breaker from the SENTRON 5SN series, rated for 400 V AC at 50 Hz with a C-tripping characteristic.

Accepts solid conductors up to 35 mm², so it handles the feed-through from a larger upstream breaker without needing a separate terminal block. Rated for multi-phase operation up to 440 V AC, and single-phase operation also at 440 V AC. DC rating tops out at 72 V — fine for control-circuit isolation on a 48 VDC bus, but not for a 125 VDC battery bank.

Frequently asked questions

Where can I buy 5SN6320-7CP and get a price?

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

What is the closest functional second-source to 5SN6320-7CP?

The 5SY4304-7CV is a close peer — same 3-pole, 400 V AC, C-curve, 15 kA per IEC 60947-2, and identical 76 mm depth and 54 mm width. It drops into the same DIN-rail footprint without rewiring, though its power loss per pole is 1.3 W vs. 1.7 W on the 5SN6320-7CP.

What is the depth of 5SN6320-7CP?

Depth is 76 mm, with a 70 mm installation depth.

What is the width of 5SN6320-7CP?

Width is 54 mm, which corresponds to 3 modular width units on a DIN rail.

Will 5SN6320-7CP drop into a panel specified around 5SY4304-7CV?

Yes — same 76 mm depth, 54 mm width, 3-pole, 400 V AC, and C-curve. No rewiring needed for the footprint.

MPN
5SN6320-7CP