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Siemens 5SJ6310-6KS — 3-Pole MCB (DIN Rail)

Siemens 5SJ6310-6KS SENTRON MCB, 3P, B Curve, 10A, 6kA

MPN5SJ6310-6KS
Active

Siemens SENTRON 5SJ6 series miniature circuit breaker, 5SJ6310-6KS, 3-pole, B characteristic, 10 A rated current, 6 kA breaking capacity per EN 60898 and IEC 60947-2, 400 V AC, screwless outgoing terminals, 3 MW units.

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

Specifications

5SJ6310-6KS — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SJ6310-6KS — Protection
ParameterValue
Tripping characteristic (curve)B
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-26 kA
Overvoltage category3
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SJ6310-6KS — Electrical
ParameterValue
Power loss per pole at rated current (AC, hot)1.5 W
Mechanical service life (operating cycles, typ.)20 000
5SJ6310-6KS — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
SealableYes
Accepts supplementary devicesNo
5SJ6310-6KS — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturePeriodically +55°C, max. 95% humidity

Product details

The Siemens SENTRON 5SJ6310-6KS is a 3-pole miniature circuit breaker rated 10 A with a B tripping characteristic, breaking 6 kA per both EN 60898 and IEC 60947-2 at 400 V AC. It occupies 3 modular width units (54 mm) on the DIN rail, with a 76 mm depth and 70 mm installation depth behind the panel. The B curve means the magnetic trip activates at 3 to 5 times rated current — suited for resistive and general-purpose loads where inrush is low, like lighting circuits, control transformers, and distribution subfeeds in residential or infrastructure panels.

Mounts on standard DIN rail in any position. 3 MW width (54 mm) fits standard distribution board cutout. Pollution degree 2 and overvoltage category III suit fixed-installation panels. 70 mm installation depth leaves clearance for rear-entry wiring.

Frequently asked questions

What is the difference between 5SJ6310-6KS and 5SL4363-7?

The 5SJ6310-6KS has a B curve and 6 kA breaking capacity; the 5SL4363-7 has a C curve and 10 kA. Both are 3-pole, 54 mm wide, and share the same depth, so they are mechanically interchangeable in the same panel footprint.

MPN
5SJ6310-6KS