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Siemens 3VA2125-8JQ46-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-8JQ46-0AA0 SENTRON MCCB, 25 A, 4-Pole, 440 k

MPN3VA2125-8JQ46-0AA0
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Siemens SENTRON 3VA2125-8JQ46-0AA0, molded case circuit breaker, 25 A, 4-pole, line protection, 440 kA at 240 V, 800 V insulation voltage, with communication function and ground-fault monitoring.

Siemens 3VA2125-8JQ46-0AA0 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

3VA2125-8JQ46-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2125-8JQ46-0AA0 — 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
3VA2125-8JQ46-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU560
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L + N conductor
Grounding protection functionYes
3VA2125-8JQ46-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-8JQ46-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-8JQ46-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-8JQ46-0AA0 — 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

Siemens SENTRON 3VA2125-8JQ46-0AA0 — 25 A 4-Pole MCCB with Ground-Fault Monitoring

Its 800 V rated insulation voltage and breaking capacity of 440 kA at 240 V — derating to 330 kA at 415 V and 52.5 kA at 690 V — give it the headroom for high-fault industrial services where selectivity and SCCR coordination matter. This makes it suitable for feeder circuits where ground-fault detection is required without a separate relay.

Panel cutout and busbar spacing match the SENTRON 3VA family; verify the existing mounting plate accommodates the 140 mm width before ordering.

Frequently asked questions

What is the breaking capacity of 3VA2125-8JQ46-0AA0 at different voltages?

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

Does 3VA2125-8JQ46-0AA0 include ground-fault monitoring?

Yes, it uses summation-current formation on the L + N conductors for ground-fault detection.

Where can I buy 3VA2125-8JQ46-0AA0?

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

MPN
3VA2125-8JQ46-0AA0