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Siemens 5SJ6108-7 — 1-Pole MCB (DIN Rail)

Siemens 5SJ6108-7 SENTRON MCB, 1P C 8A 6kA 240V

MPN5SJ6108-7

Siemens SENTRON 5SJ6 series, miniature circuit breaker, 1-pole, C-curve, 8 A, 6 kA per EN 60898, 240 V AC, 70 mm depth.

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

Specifications

5SJ6108-7 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Number of poles1
5SJ6108-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)6 kA
Overvoltage category3
5SJ6108-7 — Mounting & Connection
ParameterValue
Mounting positionany
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SJ6108-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SJ6108-7 is a 1-pole miniature circuit breaker with a C tripping characteristic, rated 8 A at 240 V AC and a 6 kA breaking capacity per EN 60898 (also 6 kA per IEC 60947-2). It also carries a DC rating of 60 V maximum, so it can protect a 24 VDC control supply or a 48 VDC signal bus on the same DIN-rail assembly. The 70 mm installation depth and single width unit (18 mm) let it slot into any standard DIN-rail enclosure without crowding adjacent breakers or terminals.

Snap-on mounting for 35 mm DIN rail. Vibration resistance tested to IEC 60068-2-6: 50 m/s² at 25 to 150 Hz and 60 m/s² at 10 to 150 Hz — robust enough for installation on machine-mounted sub-panels near pumps or conveyors. Mechanical service life is 20 000 switching cycles typical, which for a breaker used mainly as a protective device (not a daily switch) translates to decades of service.

Frequently asked questions

What is the breaking capacity of 5SJ6108-7?

6 kA per EN 60898 and also 6 kA per IEC 60947-2 at 230/400 V AC. That is the standard interrupting rating for this class of MCB in commercial sub-distribution.

Where can I buy the 5SJ6108-7?

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

Will the 5SJ6108-7 drop into a panel specified for 5SL4120-7CC?

Both are 1-pole SENTRON MCBs with the same 70 mm installation depth and single width unit. The 5SL series offers a 10 kA breaking capacity and a 400 V AC rating, while the 5SJ6108-7 is rated 6 kA at 240 V AC. Electrically, the 5SJ6108-7 is a lower-fault-duty variant; it fits the same DIN-rail footprint without rewiring, but verify the available fault current at the panel does not exceed 6 kA.

What is the maximum ambient temperature for the 5SJ6108-7?

75 °C maximum, with periodic exposure to 55 °C at 95% humidity. The breaker is also rated down to -40 °C.

MPN
5SJ6108-7