Skip to main content
Siemens 3VA2140-7KP42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2140-7KP42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU85

MPN3VA2140-7KP42-0AA0
Active

Siemens SENTRON 3VA2140-7KP42-0AA0, molded case circuit breaker, 40 A, 4-pole, ETU850 electronic trip unit, 330 kA at 240 V, line protection.

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

3VA2140-7KP42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA2140-7KP42-0AA0 — Ratings
ParameterValue
Number of poles4
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
3VA2140-7KP42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU850
Overcurrent protection functionLSI
Ground-fault monitoringWithout
3VA2140-7KP42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2140-7KP42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2140-7KP42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2140-7KP42-0AA0 — 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

It carries an ETU850 electronic overcurrent release, which means the trip curve is programmable and the breaker can communicate status over a network — the communication function is built in, so you get remote monitoring without an add-on module. Four poles handle three-phase plus neutral, and the interrupting ratings are substantial: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.

An optional motor drive is available as a field-installable accessory, which lets you remote-reset or remote-trip the breaker from a PLC or SCADA system.

The interrupting capacity at 690 V drops to 3.7 kA — still adequate for most secondary-side faults in a 690 V distribution board, but verify against your available fault current. Maximum power loss is 1.6 W, negligible for panel thermal budgeting.

Frequently asked questions

Where can I buy the 3VA2140-7KP42-0AA0?

This MCCB is available to order through independent distribution. Submit an RFQ for current availability and pricing — no stock or lead-time figures are published here.

What is the interrupting capacity of this breaker?

At 240 V it interrupts 330 kA; at 415 V and 440 V, 242 kA; at 500 V, 187 kA; at 690 V, 3.7 kA.

What trip unit does the 3VA2140-7KP42-0AA0 use?

It uses the ETU850 electronic overcurrent release, which supports adjustable protection curves and has a built-in communication function for remote monitoring.

MPN
3VA2140-7KP42-0AA0