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Siemens 3VA2025-8KQ46-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2025-8KQ46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 440 k

MPN3VA2025-8KQ46-0AA0
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Siemens SENTRON 3VA2025-8KQ46-0AA0, molded case circuit breaker, 4-pole, 25 A rated continuous current, line protection design with ground-fault monitoring, breaking capacity 440 kA at 240 V.

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

3VA2025-8KQ46-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2025-8KQ46-0AA0 — Ratings
ParameterValue
Number of poles4
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 classL
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V330 kA
Breaking capacity at 440 V330 kA
Breaking capacity at 500 V220 kA
Breaking capacity at 690 V52.5 kA
Power loss, max.0.5 W
3VA2025-8KQ46-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L + N conductor
Grounding protection functionYes
3VA2025-8KQ46-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2025-8KQ46-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2025-8KQ46-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2025-8KQ46-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width140 mm
Depth86 mm
Height (in)7.13 in
Width (in)5.51 in
Depth (in)3.39 in

Product details

It carries a continuous rated current of 25 A across the full ambient temperature range from 40 °C to 70 °C, with no derating needed — the rating holds at 25 A all the way up to 70 °C. That's a solid thermal margin for a panel that runs hot.

This MCCB delivers 440 kA interrupting capacity at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V.

That 86 mm depth is the key dimension for panel clearance — it fits standard distribution board depths without sticking out past the gland plate. The width of 140 mm is typical for a 4-pole MCCB in this frame size; check your DIN-rail or mounting-plate layout for the 4-module footprint. It includes a communication function and ground-fault monitoring via summation current formation of L + N conductors, which means you can integrate it into a monitoring system without an external ground-fault relay. The maximum power loss is only 0.5 W, so heat buildup in a sealed enclosure is negligible.

The lifecycle stage is listed as current, meaning Siemens still manufactures this exact order code. No end-of-life notice, no last-time-buy clock.

Frequently asked questions

What is the breaking capacity of 3VA2025-8KQ46-0AA0 at different voltages?

At 240 V it is 440 kA, at 415 V and 440 V it is 330 kA, at 500 V it is 220 kA, and at 690 V it is 52.5 kA.

Where can I buy 3VA2025-8KQ46-0AA0?

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

MPN
3VA2025-8KQ46-0AA0