Skip to main content
Log in
Siemens 5SP4392-7 — 3-Pole MCB (DIN Rail)

Siemens 5SP4392-7 SENTRON MCB, 3P C 125A, 10kA, 400V

MPN5SP4392-7
Active

Siemens SENTRON 5SP Miniature circuit breaker, 3-pole, C-curve, 125 A, 10 kA (EN 60898), 400 V AC, 76 mm depth.

Siemens 5SP4392-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SP4392-7 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
5SP4392-7 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 6089810 kA
Overvoltage category3
IP protection classIP20 with connected conductors, IP40 in the area of the handle with distribution cover
Pollution degree3
5SP4392-7 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)10.9 W
Mechanical service life (operating cycles, typ.)10 000
5SP4392-7 — Mechanical
ParameterValue
Modular width units4.5
Mounting positionany
Width81 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Fastening methodDIN rail and screw fixing
SealableYes
Accepts supplementary devicesYes
5SP4392-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperatureMax. 95% rel. humidity
Vibration resistance (IEC 60068-2-6)50m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)

Product details

The Siemens 5SP4392-7 is a SENTRON 5SP miniature circuit breaker, 3-pole, with a C-trip characteristic rated at 125 A and a breaking capacity of 10 kA per EN 60898 at 400 V AC.

Mounts on DIN rail or with screw fixing in any orientation. At 4.5 modular width units (81 mm wide, 76 mm deep, 90 mm tall) it fits standard SENTRON distribution boards and sub-distribution panels. Sealable design allows lockout/tagout compliance on critical circuits.

Vibration resistance per IEC 60068-2-6 and shock resistance per IEC 60068-2-27 — suitable for industrial panels on conveyors, pumps, or machine tools where mechanical stress is a factor.

Frequently asked questions

What is the breaking capacity of 5SP4392-7?

10 kA according to EN 60898 at 400 V AC. That is the rated short-circuit capacity for this 3-pole C-curve MCB.

Will 5SP4392-7 drop into a panel specified around 5SP4292-7?

Both are 3-pole SENTRON 5SP miniature circuit breakers with the same DIN-rail mounting and 4.5 MW width, so mechanical fit is identical. The key difference is the current rating — 5SP4392-7 is 125 A versus the lower-rated 5SP4292-7. Verify the branch circuit's ampacity and coordination before substituting.

Where can I buy 5SP4392-7 and how is it quoted?

Sourced to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, no stock-count promises on the listing.

MPN
5SP4392-7