Skip to main content
Siemens 5SJ4135-8HG40 — 1-Pole MCB (DIN Rail)

Siemens 5SJ4135-8HG40 SENTRON MCB, 1P, 35 A, D-curve, 60 VDC

MPN5SJ4135-8HG40
Active

Siemens SENTRON 5SJ4 series miniature circuit breaker, 1-pole, 35 A rated, D tripping characteristic, 60 VDC max, DIN-rail mount.

$78.94Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SJ4135-8HG40 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Number of poles1
Application suitabilityMechanical engineering / industry
5SJ4135-8HG40 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Rated value (EN 60898)10 kA
Overvoltage category3
5SJ4135-8HG40 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodon standard mounting rail
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth70 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SJ4135-8HG40 — Environmental
ParameterValue
IP protection classIP20, with connected conductors, IP 40 in the handle range
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

It is a single-pole unit rated 35 A at 30 °C and 40 °C, with a D tripping characteristic that handles inrush currents from motor starters and transformers without nuisance tripping. The breaker also carries a DC rating of 60 V maximum, making it suitable for DC control circuits common in automation panels.

The D-curve (tripping characteristic D) means the magnetic trip operates at 10 to 20 times the rated current — 350 to 700 A for this 35 A unit. That suits loads with high starting surges, such as small motors, solenoid valves, or transformer primaries, where a B- or C-curve would trip on inrush. The 35 A rating holds at 30 °C and 40 °C; at 45 °C it derates to 34 A, at 50 °C to 32.9 A, at 55 °C to 31.8 A, and at 60 °C to 30.8 A. The DC rating of 60 V maximum applies per pole. In a 24 VDC control circuit, this breaker provides overcurrent protection without needing a separate DC-rated fuse. The AC/DC voltage type means it can be used on either supply, but the 60 V DC ceiling is the binding limit for DC applications.

Protection class is IP20 with connected conductors, IP40 in the handle area — suitable for dry indoor panels but not washdown zones. Vibration resistance is 50 m/s² at 25 to 150 Hz and 60 m/s² at 35 Hz (4 seconds).

MPN
5SJ4135-8HG40