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Siemens 3VA2125-6KQ32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-6KQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 242 k

MPN3VA2125-6KQ32-0AA0
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Siemens SENTRON 3VA2125-6KQ32-0AA0, molded case circuit breaker, 3-pole, 25 A continuous, line protection, 242 kA at 240 V, with communication and ground-fault monitoring.

Siemens 3VA2125-6KQ32-0AA0 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

3VA2125-6KQ32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-6KQ32-0AA0 — 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 classH
Breaking capacity at 240 V242 kA
Breaking capacity at 415 V187 kA
Breaking capacity at 440 V187 kA
Breaking capacity at 500 V121 kA
Breaking capacity at 690 V3.7 kA
Power loss, max.0.6 W
3VA2125-6KQ32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2125-6KQ32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-6KQ32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-6KQ32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-6KQ32-0AA0 — 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 Siemens SENTRON 3VA2125-6KQ32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, designed for line protection in distribution panels and industrial switchgear. It carries a 242 kA breaking capacity at 240 V, dropping to 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V — so the interrupting rating stays high across common low-voltage levels, which simplifies coordination downstream.

Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — a standard MCCB footprint for DIN-rail or panel-mount installation. It operates from -25 °C to 70 °C and stores from -40 °C to 80 °C, so it handles unheated enclosures and warm cabinet interiors without derating. Maximum power loss is 0.6 W, negligible for thermal budgeting inside a crowded panel.

Frequently asked questions

How do I get current pricing and availability for 3VA2125-6KQ32-0AA0?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels.

What is the breaking capacity of 3VA2125-6KQ32-0AA0 at different voltages?

242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — the interrupting rating is high enough for most main and feeder applications up to 500 V.

Will 3VA2125-6KQ32-0AA0 drop into a panel specified around 3VA2125-8KQ42-0AA0 without rewiring?

Both are 3-pole SENTRON MCCBs in the same 3VA2 frame family, so the mounting footprint and bus connections are identical — no rewiring needed for the swap. Verify the trip curve and accessory configuration against your coordination study.

MPN
3VA2125-6KQ32-0AA0