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Siemens 3VA2140-0MQ32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2140-0MQ32-0AA0 SENTRON MCCB, 40 A, 440 kA

MPN3VA2140-0MQ32-0AA0
Active

Siemens SENTRON 3VA2140-0MQ32-0AA0, molded case circuit breaker, 3-pole, 40 A, 440 kA at 415 V, motor protection design, ETU860M trip unit.

Siemens 3VA2140-0MQ32-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA2140-0MQ32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2140-0MQ32-0AA0 — 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 classE
Breaking capacity at 415 V440 kA
Breaking capacity at 690 V187 kA
Power loss, max.1.2 W
3VA2140-0MQ32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860M
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L-conductor
Grounding protection functionYes
3VA2140-0MQ32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2140-0MQ32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2140-0MQ32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2140-0MQ32-0AA0 — 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

SENTRON 3VA2 MCCB with ETU860M — motor protection at 40 A

The Siemens SENTRON 3VA2140-0MQ32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed specifically for motor protection, carrying a continuous rated current of 40 A that holds flat across the full operating temperature range from 40 °C up to 70 °C — no derating curve to calculate for panel internal heat rise. Its ETU860M electronic trip unit offers adjustable trip classes (10A, 10/10E, 30/30E) and includes phase failure detection, ground-fault monitoring via summation current formation on the L-conductor, and a communication function.

Power loss is 1.2 W maximum at rated current — negligible heat contribution inside a sealed enclosure.

Frequently asked questions

What trip classes are adjustable on the ETU860M?

The ETU860M electronic trip unit supports adjustable trip classes 10A, 10/10E, 20/20E, and 30/30E, covering fast to slow overload curves for motor starting.

Does this MCCB include phase failure detection and ground-fault monitoring?

Yes, it includes phase failure detection and ground-fault monitoring via summation current formation on the L-conductor, plus a communication function for remote status reporting.

MPN
3VA2140-0MQ32-0AA0