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Siemens 3VA2340-8HL32-0AJ0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2340-8HL32-0AJ0 SENTRON MCCB, 400A, 3-Pole, ETU32

MPN3VA2340-8HL32-0AJ0

Siemens SENTRON 3VA2 molded case circuit breaker, 3VA2340-8HL32-0AJ0, 3-pole, 400 A (40°C), ETU320 electronic trip unit, 440 kA at 240 V AC, IP40 front.

Siemens 3VA2340-8HL32-0AJ0 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

3VA2340-8HL32-0AJ0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.#BEZUG!
Integrated auxiliary / alarm switch ref.3VA9988-0AB11
3VA2340-8HL32-0AJ0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C400 A
Current at 45 °C400 A
Current at 50 °C400 A
Current at 55 °C385 A
Current at 60 °C370 A
Current at 65 °C355 A
Current at 70 °C340 A
Switching capacity classL
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V330 kA
Breaking capacity at 690 V52.5 kA
Power loss, max.96 W
3VA2340-8HL32-0AJ0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU320
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2340-8HL32-0AJ0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2340-8HL32-0AJ0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA2340-8HL32-0AJ0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2340-8HL32-0AJ0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height248 mm
Width138 mm
Depth110 mm
Height (in)9.76 in
Width (in)5.43 in
Depth (in)4.33 in

Product details

The Siemens 3VA2340-8HL32-0AJ0 is a SENTRON 3VA2 molded case circuit breaker, 3-pole, rated 400 A continuously at 40 °C ambient. Breaking capacity runs 440 kA at 240 V, 330 kA at 415 V, and 52.5 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream.

Full 400 A rating holds through 50 °C. Above that it steps down: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. Maximum power loss is 96 W at rated load; that heat has to leave the enclosure.

Integration notes

The auxiliary switch configuration is 2 aux + 1 trip alarm switch (HP type). Storage range -40 to 80 °C; operating -25 to 70 °C.

Frequently asked questions

Where can I buy 3VA2340-8HL32-0AJ0?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position.

What breaking capacity does this MCCB have at 415 V?

330 kA at 415 V AC. At 240 V it's 440 kA; at 690 V it's 52.5 kA. The 415 V figure covers common IEC industrial supply voltages.

What is the continuous current rating at 60 °C?

370 A at 60 °C ambient. The full 400 A rating holds only up to 50 °C; above that the derating curve applies: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C.

Does 3VA2340-8HL32-0AJ0 include a ground-fault module?

No. This variant ships without ground-fault monitoring and without an undervoltage release. The ETU320 trip unit handles overcurrent protection only.

MPN
3VA2340-8HL32-0AJ0