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Siemens 3VA2040-8KQ36-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-8KQ36-0AA0 SENTRON MCCB, 40 A, 3-Pole, 480 A

MPN3VA2040-8KQ36-0AA0
Active

Siemens SENTRON 3VA2040-8KQ36-0AA0, molded case circuit breaker, 3-pole, 40 A rated, 60–480 A trip range, breaking capacity 440 kA at 240 V, line protection design.

Siemens 3VA2040-8KQ36-0AA0 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

3VA2040-8KQ36-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2040-8KQ36-0AA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C40 A
Current at 45 °C40 A
Current at 50 °C40 A
Current at 55 °C40 A
Current at 60 °C40 A
Current at 65 °C40 A
Current at 70 °C40 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.1.2 W
3VA2040-8KQ36-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2040-8KQ36-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-8KQ36-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2040-8KQ36-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-8KQ36-0AA0 — 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 3VA2040-8KQ36-0AA0 is a 3-pole SENTRON molded case circuit breaker rated for 40 A continuous current, with a trip-range adjustability from 60 A up to 480 A — so it fits a feeder or main that needs headroom above the 40 A nameplate, not just a fixed 40 A breaker. Breaking capacity is 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — those numbers mean this breaker can interrupt fault currents at the distribution transformer secondary or a high-capacity bus without cascading upstream.

No undervoltage release and no voltage trigger — the breaker is purely current-trip; external UVR or shunt-trip modules would need to be added separately if required by the safety circuit.

Frequently asked questions

Will 3VA2040-8KQ36-0AA0 drop into a panel specified around 3VA2040-8HN42-0AA0 without rewiring?

Both are 3-pole SENTRON MCCBs with the same frame size and terminal layout, so mechanical fit and bus-bar spacing should match — but the 8KQ36 has a 40 A rated current versus whatever the 8HN42 carries, and the trip-range and accessory configuration may differ. Verify the trip settings and auxiliary contact wiring before swapping.

MPN
3VA2040-8KQ36-0AA0