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Siemens 3VA2125-7KQ32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-7KQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 330 k

MPN3VA2125-7KQ32-0AA0
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Siemens SENTRON 3VA2125-7KQ32-0AA0, molded case circuit breaker, 3-pole, 25 A rated continuous, 330 kA interrupting at 240 V AC, line protection design with communication function.

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

3VA2125-7KQ32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-7KQ32-0AA0 — 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 classC
Breaking capacity at 240 V330 kA
Breaking capacity at 415 V242 kA
Breaking capacity at 440 V242 kA
Breaking capacity at 500 V187 kA
Breaking capacity at 690 V3.7 kA
Power loss, max.0.6 W
3VA2125-7KQ32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2125-7KQ32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-7KQ32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-7KQ32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-7KQ32-0AA0 — 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

At 415 V and 440 V it still manages 242 kA, dropping to 187 kA at 500 V, and 3.7 kA at 690 V. That's unusual for an MCCB at this frame size; most start rolling off above 40 °C.

Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard SENTRON 3VA frame that drops into existing 3-pole MCCB mounting bases. No panel rework needed if you're swapping from another 3VA series unit at the same pole count. Maximum power dissipation is only 0.6 W, so thermal crowding inside a sealed enclosure is negligible. Storage range of -40 to 80 °C and operating range of -25 to 70 °C cover most indoor and outdoor cabinet environments.

Protection and communication features

This is a line-protection design (not motor or feeder), with a built-in communication function for remote monitoring or integration into a BMS. No undervoltage release and no trip indicator on this variant. The adjustable current range spans 38 A to 300 A, so the 25 A continuous rating is set by the fixed trip unit — the adjustment range applies to the electronic trip curve, not the continuous amp rating.

MPN
3VA2125-7KQ32-0AA0