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Siemens 3VA2125-5KQ32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-5KQ32-0AA0 SENTRON MCCB, 25 A, 3-Pole, 187 k

MPN3VA2125-5KQ32-0AA0
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Siemens SENTRON 3VA2125-5KQ32-0AA0, 3-pole molded case circuit breaker, 25 A rated continuous current, 187 kA interrupting at 240 V, line protection with ground-fault summation current sensing.

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

3VA2125-5KQ32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-5KQ32-0AA0 — 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 classM
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
3VA2125-5KQ32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2125-5KQ32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-5KQ32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-5KQ32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-5KQ32-0AA0 — 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

25 A MCCB with ground-fault summation and communication

Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 500 V — numbers that govern fault-clearing at the main distribution board or high-fault substation feeder. Communication function is built in, so it can report status or trip events to a higher-level control system without an add-on module.

Interrupting capacity across voltage levels

At 415 V the rating holds at 121 kA, and at 440 V it stays at 121 kA. At 500 V it drops to 75.6 kA, and at 690 V it falls to 3.7 kA.

Integration dimensions and panel fit

At 86 mm deep, 105 mm wide, and 181 mm tall, the 3VA2125-5KQ32-0AA0 fits standard 3-pole MCCB panel cutouts. The 3-pole design accepts up to 300 A maximum frame rating and down to 38 A minimum, though this specific unit is set for 25 A.

Environmental and electrical ratings

No undervoltage release or trip indicator is built into this order code, so if those features are needed, specify a different suffix.

Frequently asked questions

What is the interrupting capacity of 3VA2125-5KQ32-0AA0 at 240 V?

187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V.

Will 3VA2125-5KQ32-0AA0 fit a panel designed for 3VA1110-5ED32-0AA0?

Yes, the 105 mm width matches the 3VA1 frame, so it drops into the same panel cutout without rewiring or drilling new mounting holes.

What is the depth of 3VA2125-5KQ32-0AA0?

86 mm (3.39 in), which fits standard 200 mm deep enclosures with wiring gutters.

Where can I buy 3VA2125-5KQ32-0AA0 and how is it quoted?

This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
3VA2125-5KQ32-0AA0