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Siemens 5SN6310-7CP — 3-Pole MCB (DIN Rail)

Siemens 5SN6310-7CP MCB 5SN, 3-pole C-curve, 400 V AC, 6/15

MPN5SN6310-7CP

Siemens MCB 5SN series, 3-pole, C-curve, 400 V AC, 6 kA (EN 60898) / 15 kA (IEC 60947-2), order code 5SN6310-7CP.

Siemens 5SN6310-7CP datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SN6310-7CP — Identification
ParameterValue
Number of poles3
5SN6310-7CP — Protection
ParameterValue
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-215 kA
5SN6310-7CP — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Power loss per pole at rated current (AC, hot)1.1 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)440 V
5SN6310-7CP — 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

Siemens 5SN6310-7CP — 3-pole C-curve MCB for 400 V AC distribution

The Siemens 5SN6310-7CP is a 3-pole miniature circuit breaker from the 5SN series, with a C-trip curve rated at 400 V AC and 50 Hz supply frequency. It carries dual breaking-capacity ratings: 6 kA according to EN 60898 for residential/commercial branch circuits, and 15 kA per IEC 60947-2 for industrial panel applications — the higher figure governs fault-clearing capability in a 400 V distribution board where through-fault current can exceed 10 kA. The 76 mm depth, 54 mm width, and 90 mm height occupy 3 modular width units on a DIN rail, with an installation depth of 70 mm. Solid conductors up to 35 mm² terminate in the box clamp, which handles the incoming feed for a 3-phase sub-distribution board without a separate terminal block.

Voltage range and environmental limits

Multi-phase and single-phase operation at AC is rated to 440 V maximum. DC operation is limited to 72 V maximum.

Frequently asked questions

What are the key ratings of 5SN6310-7CP?

3-pole C-curve MCB rated 400 V AC, 50 Hz, with breaking capacities of 6 kA per EN 60898 and 15 kA per IEC 60947-2. It accepts solid conductors up to 35 mm² and operates from -40 °C to 75 °C.

Where can I buy 5SN6310-7CP?

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

Will 5SN6310-7CP drop into a panel specified around 5SY4304-7CV without rewiring?

Yes — both share the same 76 mm depth, 54 mm width, 90 mm height, 3-pole form factor, 3 modular width units, and 70 mm installation depth. The 5SN6310-7CP uses the same DIN-rail footprint and box-clamp terminal style, so no rewiring or panel rework is needed for a direct swap.

MPN
5SN6310-7CP