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Siemens 3VA2440-5MN32-0JA0 — Molded Case Circuit Breakers (MCCB)

Siemens SENTRON 3VA2440-5MN32-0JA0 MCCB, 400 A, 3-Pole, Moto

MPN3VA2440-5MN32-0JA0

Siemens SENTRON 3VA2440-5MN32-0JA0, molded case circuit breaker, 3-pole, 400 A, motor protection design, shunt trip release, breaking capacity 187 kA at 240 V.

Siemens 3VA2440-5MN32-0JA0 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

3VA2440-5MN32-0JA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA2440-5MN32-0AA0
3VA2440-5MN32-0JA0 — 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 °C400 A
Current at 60 °C400 A
Current at 65 °C400 A
Current at 70 °C400 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V75.6 kA
Breaking capacity at 690 V9 kA
Power loss, max.63.5 W
3VA2440-5MN32-0JA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU350M
Overcurrent protection functionLSI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA2440-5MN32-0JA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2440-5MN32-0JA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2440-5MN32-0JA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2440-5MN32-0JA0 — 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

400 A MCCB with flat temperature derating and shunt trip

The Siemens SENTRON 3VA2440-5MN32-0JA0 is a 3-pole molded case circuit breaker rated 400 A continuously from 40 °C through 70 °C — no derating curve to calculate across that band, which simplifies panel thermal budgeting for a motor protection circuit. Breaking capacity runs 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 9 kA at 690 V. Maximum power loss is 63.5 W — relevant for enclosure heat-rise calculations when multiple breakers are ganged in a panel.

Physical integration

Designed for motor protection duty, so the trip curve and magnetic pickup are calibrated for motor inrush rather than general distribution — verify coordination with downstream contactors and overload relays.

Frequently asked questions

Does this breaker include phase failure detection?

Yes, phase failure detection is built in, along with a shunt trip release (STL) for remote tripping.

MPN
3VA2440-5MN32-0JA0