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Siemens 5SN6310-8CN — 3-Pole MCB (DIN Rail)

Siemens 5SN6310-8CN SENTRON MCB, 3P D 10A 6kA 400V

MPN5SN6310-8CN

Siemens SENTRON 5SN6CN series, 5SN6310-8CN miniature circuit breaker, 3-pole, D tripping characteristic, 10 A rated current, 6 kA breaking capacity at 400 V AC, 3 width units.

Siemens 5SN6310-8CN datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SN6310-8CN — Identification
ParameterValue
Design / model code5SN6CN
Brand nameSENTRON
Number of poles3
5SN6310-8CN — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 608986 kA
Overvoltage category3
IP protection classIP20, with connected conductors
Pollution degree2
5SN6310-8CN — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Rated frequency50 Hz
5SN6310-8CN — Mechanical
ParameterValue
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
SealableYes
5SN6310-8CN — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturePeriodically +55°C, max. 95% humidity

Product details

Siemens SENTRON 5SN6310-8CN — 3-pole D-curve MCB, 10 A, 6 kA

D-curve trip thresholds (10–20× In for instantaneous) avoid nuisance trips on motor start or capacitor bank inrush, but also mean longer trip times on moderate overloads — coordination with downstream loads matters. Rated for 50 Hz AC only, with a maximum operating voltage of 440 V in multi-phase operation. Three poles (3P, no switched neutral) suit a three-phase load or a three-phase supply with separate neutral bar. Ambient temperature range -40 to +75 °C, with periodic +55 °C / 95% humidity influence noted. Mount in any position, installation depth 70 mm.

Panel integration and compliance

Snap-on mounting for standard DIN-rail enclosures. 3 width units (54 mm wide) fit a 3-pole breaker in a cutout row. Touch protection is integral. Pollution degree 2, overvoltage category III — the usual spec for fixed-installation switchgear. Sealable (yes) allows lockout/tagout on the toggle.

Frequently asked questions

What is the breaking capacity of 5SN6310-8CN?

6 kA at 400 V AC, tested to EN 60898. That is the rated short-circuit capacity for this 3-pole D-curve breaker.

Where can I buy 5SN6310-8CN and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

Will 5SN6310-8CN drop into a panel specified for 5SL3640-7MB without rewiring?

No — the 5SL3640-7MB is a 4-pole (3P+N) C-curve breaker at 40 A, 4.5 kA, 4 width units (72 mm). The 5SN6310-8CN is 3-pole, D-curve, 10 A, 6 kA, 3 width units (54 mm). Different footprint and ratings; a panel cutout and busbar arrangement for the 5SL would not accept the 5SN without mechanical and electrical rework.

MPN
5SN6310-8CN