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Siemens 3VA2140-7MS32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2140-7MS32-0AA0 SENTRON MCCB, 40 A, 3-Pole, ETU31

MPN3VA2140-7MS32-0AA0
Active

Siemens SENTRON, Molded case circuit breaker, 3VA2140-7MS32-0AA0, 40 A continuous, 3-pole, ETU310M electronic trip unit, 330 kA at 240 V, 86 mm depth, 105 mm width, 181 mm height.

$185.42Ref. price · indicative, final on quote
Siemens 3VA2140-7MS32-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA2140-7MS32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2140-7MS32-0AA0 — 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 classC
Breaking capacity at 240 V330 kA
Breaking capacity at 415 V242 kA
Breaking capacity at 440 V242 kA
Breaking capacity at 500 V187 kA
Breaking capacity at 690 V3.7 kA
Power loss, max.1.6 W
3VA2140-7MS32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU310M
Overcurrent protection functionI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2140-7MS32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2140-7MS32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2140-7MS32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2140-7MS32-0AA0 — 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

It is designed for starter protection — meaning the trip curve and coordination are tuned for motor-starting inrush rather than plain feeder duty. The interrupting rating reaches 330 kA at 240 V, dropping to 3.7 kA at 690 V, so it handles high available fault current on the low-voltage side of a distribution transformer.

Panel integration

The 3-pole block occupies a single 105 mm wide slot. Spring-cage or screw terminals accept copper conductors in the range typical for 40 A branch circuits. The ETU310M is user-adjustable via the front dials — no software or handheld programmer needed for basic settings. No undervoltage release or shunt trip is factory-installed, but Siemens offers field-installable accessory kits.

Frequently asked questions

What is the interrupting rating of 3VA2140-7MS32-0AA0 at 240 V?

330 kA at 240 V, which covers high-fault locations like switchboard mains or large transformer secondaries.

Where can I buy 3VA2140-7MS32-0AA0?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the depth of this MCCB?

86 mm depth (3.39 in), which fits standard panelboard and enclosure clearances.

Does 3VA2140-7MS32-0AA0 include an undervoltage release?

No, the factory configuration ships without an undervoltage release. Field-installable accessory kits are available from Siemens.

MPN
3VA2140-7MS32-0AA0