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Siemens 5SL3105-7 — 1-Pole MCB (DIN Rail)

Siemens 5SL3105-7 SENTRON MCB, 1P C 0.5A 4.5kA

MPN5SL3105-7

Siemens SENTRON 5SL3105-7, 1-pole miniature circuit breaker, C-curve 0.5 A, 4.5 kA (EN 60898) / 5 kA (IEC 60947-2), 400 V AC, 1 MW unit.

Siemens 5SL3105-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL3105-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityResidential buildings/infrastructure
5SL3105-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SL3105-7 — 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
5SL3105-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

Siemens SENTRON 5SL3105-7 — 1-pole C-curve MCB, 0.5 A

It breaks 4.5 kA per EN 60898 and 5 kA per IEC 60947-2 — the IEC figure is the one that governs industrial panel coordination, since it tests at the higher prospective fault current typical of distribution boards. The C-curve (5–10× In) means it holds through motor inrush and transformer magnetizing peaks without nuisance tripping, so it suits mixed resistive-inductive loads in residential infrastructure and light commercial sub-distribution.

Mounting position any, so it fits vertical or horizontal busbars without derating the 0.9 W per-pole power loss. Sealable housing; halogen-free and silicon-free construction for environments sensitive to outgassing (clean rooms, food processing zones).

Frequently asked questions

What is the breaking capacity of 5SL3105-7?

4.5 kA per EN 60898 and 5 kA per IEC 60947-2 at 400 V AC. The IEC 60947-2 rating is the one to use for industrial panel coordination studies.

What is the difference between 5SL3105-7 and the 3-pole 5SL4363-7?

The 5SL4363-7 is a 3-pole version (54 mm wide, 3 MW) with a higher 10 kA breaking capacity under both EN 60898 and IEC 60947-2. The 5SL3105-7 is a single-pole unit (18 mm, 1 MW) rated 4.5/5 kA. They share the same depth (76 mm), height (90 mm), and C-curve characteristic, but the 3-pole unit carries a 5 W power loss versus 0.9 W on the single-pole. They are not direct substitutes — the pole count and fault rating differ.

Where can I buy 5SL3105-7?

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

MPN
5SL3105-7