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Siemens 3VA2025-8KQ42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2025-8KQ42-0AA0 SENTRON MCCB, 25 A, 4-Pole, 440 k

MPN3VA2025-8KQ42-0AA0
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Siemens SENTRON 3VA2025-8KQ42-0AA0, molded case circuit breaker, 25 A, 4-pole, 440 kA interrupting at 240 V, line protection with ground-fault monitoring and communication function.

Siemens 3VA2025-8KQ42-0AA0 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

3VA2025-8KQ42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2025-8KQ42-0AA0 — 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
3VA2025-8KQ42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L + N conductor
Grounding protection functionYes
3VA2025-8KQ42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2025-8KQ42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2025-8KQ42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2025-8KQ42-0AA0 — 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

The Siemens 3VA2025-8KQ42-0AA0 is a SENTRON molded case circuit breaker rated for 25 A continuous current across the full ambient range from -25 °C to 70 °C — no derating needed up to 70 °C. Its 4-pole design handles three-phase plus neutral, and the interrupting ratings climb to 440 kA at 240 V, 330 kA at 415 V, and 220 kA at 500 V, so it clears high-fault currents without cascading upstream.

The 4-pole footprint matches standard SENTRON 3VA panel cutouts; verify busbar spacing if replacing an older 3-pole + neutral block arrangement.

Frequently asked questions

Where can I buy 3VA2025-8KQ42-0AA0?

This part is sourced to order against an RFQ through independent distribution. Pricing and availability are confirmed at quote time.

What is the interrupting rating of 3VA2025-8KQ42-0AA0 at 415 V?

330 kA at 415 V, which covers most industrial secondary-side fault levels.

Does 3VA2025-8KQ42-0AA0 include ground-fault protection?

Yes, it has ground-fault monitoring via summation current formation on L + N conductors.

MPN
3VA2025-8KQ42-0AA0