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Siemens 5SY5105-7 — 1-Pole MCB (DIN Rail)

Siemens 5SY5105-7 SENTRON MCB, C-Curve 1P 10kA, 400V AC

MPN5SY5105-7
Active

Siemens SENTRON 5SY5105-7 miniature circuit breaker, C-curve, 1-pole, 10 kA per IEC/EN 60898-2, 400 V AC, 1 MW width, IP20.

Siemens 5SY5105-7 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY5105-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityuniversal current
5SY5105-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY5105-7 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY5105-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens 5SY5105-7 is a SENTRON miniature circuit breaker (MCB) — a C-curve, single-pole device rated for universal current (AC/DC) at 400 V AC / 220 V DC, with a breaking capacity of 10 kA per IEC/EN 60898-2 and 15 kA per IEC 60947-2 at DC.

Dual-rated to IEC/EN 60898-2 and UL1077, so it passes both European and North American acceptance criteria for supplementary protectors.

At 18 mm wide (1 MW), it fits standard 18 mm pitch terminal blocks and leaves room for adjacent breakers or auxiliaries. Sealable — useful for utility-metering or tamper-proof installations. IP20 with connected conductors, so it belongs inside an enclosure, not exposed to washdown.

Frequently asked questions

Where can I buy 5SY5105-7 and how do I get a price?

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

What is 5SY5105-7's listed depth (76 mm) on this component line?

The overall depth is 76 mm; the installation depth (behind the panel face) is 70 mm. At 18 mm wide (1 MW), it fits standard DIN-rail spacing.

Will 5SY5105-7 drop into a panel that was specified around 5SY4140-7 without rewiring?

Yes — both are 1-pole SENTRON MCBs on the same 18 mm DIN-rail footprint with the same depth (76 mm). The 5SY5105-7 carries a C-curve and 10 kA breaking capacity; the 5SY4140-7 is a B-curve variant. If the panel was designed for a B-curve device, swapping to a C-curve changes the trip threshold (5–10× In vs 3–5× In) — verify coordination with downstream loads, but the mechanical fit is identical.

What compliance documentation does this brand provide for 5SY5105-7 (RoHS, REACH, UL, IEC)?

The device is certified to IEC/EN 60898-2 and UL1077. The housing is halogen-free and silicon-free, which supports RoHS and REACH compliance. Standard Siemens SENTRON documentation (declaration of conformity, CE, UKCA) is available on request.

MPN
5SY5105-7