Skip to main content
Log in
Siemens 3VA2125-5MQ32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-5MQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, Motor

MPN3VA2125-5MQ32-0AA0
Active

Siemens SENTRON 3VA2125-5MQ32-0AA0, molded case circuit breaker, 3-pole, 25 A, motor protection design, 187 kA breaking capacity at 240 V.

Siemens 3VA2125-5MQ32-0AA0 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

3VA2125-5MQ32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-5MQ32-0AA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C25 A
Current at 45 °C25 A
Current at 50 °C25 A
Current at 55 °C25 A
Current at 60 °C25 A
Current at 65 °C25 A
Current at 70 °C25 A
Switching capacity classE
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V75.6 kA
Breaking capacity at 690 V3.7 kA
Power loss, max.0.6 W
3VA2125-5MQ32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860M
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2125-5MQ32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-5MQ32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-5MQ32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-5MQ32-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width105 mm
Depth86 mm
Height (in)7.13 in
Width (in)4.13 in
Depth (in)3.39 in

Product details

The adjustable overload range (5 A to 25 A) lets you dial in the exact motor FLA without swapping the breaker, a real time-saver during commissioning. The ground-fault monitoring uses summation current sensing on the line conductors, which catches leakage without a separate GFCI module.

The communication function (listed as present) allows integration with a higher-level control system for remote monitoring or trip indication — check the exact protocol support in the full datasheet. Power loss is minimal at 0.6 W max, so heat buildup in a dense panel is not a concern.

Frequently asked questions

What is the closest functional alternative to 3VA2125-5MQ32-0AA0?

The closest functional second-source is the 5SQ2370-2YA05 series, which also offers a 3-pole MCCB with adjustable overload in a similar current class. However, the 3VA2125-5MQ32-0AA0 includes phase failure detection and communication capability that may not be present on the 5SQ2370-2YA05 — verify the feature set before substituting.

MPN
3VA2125-5MQ32-0AA0