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Siemens 5SJ4103-7HG41 — 1-Pole MCB (DIN Rail)

Siemens 5SJ4103-7HG41 SENTRON MCB, 1-pole C-curve, 10 kA

MPN5SJ4103-7HG41
Active

Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC / 60 V DC, 18 mm width, DIN rail mount.

$36.83Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4103-7HG41 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityMechanical engineering / industry
5SJ4103-7HG41 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Overvoltage category3
5SJ4103-7HG41 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodon standard mounting rail
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height110 mm
Depth70 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SJ4103-7HG41 — Environmental
ParameterValue
IP protection classIP20, with connected conductors, IP 40 in the handle range
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Its 18 mm width (1 MW) fits a single modular slot in any distribution board or control panel. Mounting position is unrestricted — install it horizontally or vertically as the cabinet layout demands. Terminals are combined (screw + clamp) top and bottom, accepting Cu conductors at a tightening torque of 3.5 Nm. No tunnel terminals — the combined design suits both solid and stranded wire without ferrules. IP20 with connected conductors;

Breaking capacity and trip curve

Rated at 400 V AC and 60 V DC maximum. The DC rating is limited to 60 V, so for 110 V DC or 220 V DC battery banks you need a different breaker. Insulation voltage (Ui) is 440 V AC — the breaker is insulated for 440 V line-to-line but its switching duty is capped at 400 V AC. Supply frequency is 50 Hz. No 60 Hz rating is listed — if your installation runs on 60 Hz, confirm thermal performance with the manufacturer. Ambient humidity tolerance is 95% max, non-condensing.

Environmental and mechanical specs

Vibration resistance is rated at 50 m/s² over 25–150 Hz and 60 m/s² at 35 Hz (4 sec) — sufficient for machine-mounted panels near rotating equipment. The breaker is suitable for mechanical engineering and industry applications per the manufacturer's own classification. EMC environment B (immunity not applicable) means it is intended for industrial premises where conducted and radiated interference levels are controlled by the installation.

Frequently asked questions

What are the key ratings of 5SJ4103-7HG41?

It is a 1-pole C-curve miniature circuit breaker rated 10 kA per EN 60898 and 15 kA per IEC 60947-2, at 400 V AC / 60 V DC. Width is 18 mm, depth 70 mm, height 110 mm. Operating temperature range -40 °C to +75 °C.

Will 5SJ4103-7HG41 drop into a panel specified around 5SY4116-7CV?

Both are 1-pole DIN-rail MCBs with 18 mm width, so the mechanical fit is identical. The 5SJ4103-7HG41 is a C-curve breaker; the 5SY4116-7CV is also a C-curve. The main difference is breaking capacity — the 5SJ4 series carries 15 kA per IEC 60947-2 versus the 5SY series rating. Check your panel's prospective fault current before substituting.

Where can I buy 5SJ4103-7HG41?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your required quantity.

MPN
5SJ4103-7HG41