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Siemens 3VA2040-8KQ46-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-8KQ46-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU86

MPN3VA2040-8KQ46-0AA0
Active

Siemens SENTRON 3VA2040-8KQ46-0AA0, molded case circuit breaker, 4-pole, 40 A, ETU860 electronic trip unit, line protection, breaking capacity 440 kA at 240 V.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA2040-8KQ46-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA2040-8KQ46-0AA0 — 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 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
3VA2040-8KQ46-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU860
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L + N conductor
3VA2040-8KQ46-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typedouble-sided box terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-8KQ46-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionYes
Motor drive optionYes
Auxiliary CO contacts0
3VA2040-8KQ46-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-8KQ46-0AA0 — 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

Four poles cover three-phase-plus-neutral or dual-feed configurations. Breaking capacity runs 440 kA at 240 V, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V — high enough for most transformer-fed main or feeder positions without cascading upstream fuses.

At 140 mm wide, 181 mm tall, and 86 mm deep, this MCCB fits standard panel-mount cutouts for 4-pole SENTRON 3VA devices. The IP40 front face suits indoor distribution boards; no washdown rating, so keep it inside the enclosure. Rated insulation voltage is 800 V, and the operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C. That covers unheated electrical rooms and most industrial environments.

Frequently asked questions

What trip unit does this breaker use?

It uses the ETU860 electronic trip unit, which supports communication for status and event reporting.

MPN
3VA2040-8KQ46-0AA0