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Siemens 5SL4103-7 — 1-Pole MCB (DIN Rail)

Siemens 5SL4103-7 SENTRON MCB, 3A C-Curve, 1P, 10kA

MPN5SL4103-7
Active

Siemens SENTRON miniature circuit breaker, 5SL4103-7, 3 A rated, C-curve, 1-pole, 10 kA breaking capacity per EN 60898, IP20, 1 MW unit.

Siemens 5SL4103-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4103-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityResidential buildings/infrastructure
5SL4103-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)10 kA
Energy limitation class3
Overvoltage categoryIII
5SL4103-7 — Mounting & Connection
ParameterValue
Mounting positionany
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL4103-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

That's the standard for most distribution boards in Europe and markets that follow IEC. Thermal derating is built in: at 40 °C the continuous rating drops to 2.84 A, at 55 °C it's 2.59 A. If your panel runs hot — near a drive cabinet or in a sun-baked enclosure — size up one amp to keep nuisance trips off the route. Single-pole design (1P, one modular width unit at 18 mm wide) means it protects one phase.

Siemens rates this MCB for residential buildings and infrastructure — think lighting circuits, socket outlets, small appliance feeds in a distribution board.

Frequently asked questions

Where can I buy 5SL4103-7 and get a price?

We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm number.

What is the depth of the 5SL4103-7?

The depth is 76 mm, with an installation depth of 70 mm. Width is a single modular unit at 18 mm.

Will 5SL4103-7 drop into a panel specified for 5SL4120-7CC?

Both are 1-pole SENTRON MCBs in the same 18 mm modular width, so the mechanical footprint and DIN-rail clip are identical. The difference is the current rating — 5SL4103-7 is 3 A C-curve, while 5SL4120-7CC is a different rating. No wiring changes needed for the same pole position, but verify the ampacity matches your load.

What compliance documentation does Siemens provide for 5SL4103-7?

The part carries approvals per EN 60898 and IEC 60947-2 for breaking capacity. It's rated for overvoltage category III, pollution degree 2, and is halogen-free and silicon-free. Standard Siemens declarations (CE, UKCA) apply; RoHS and REACH compliance documentation is available through the manufacturer's channels.

MPN
5SL4103-7