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Siemens 3VA1340-7EF32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1340-7EF32-0AA0 SENTRON MCCB, 400 A, 440 kA at 24

MPN3VA1340-7EF32-0AA0
Active

Siemens SENTRON 3VA1340-7EF32-0AA0, molded case circuit breaker, 3-pole, 400 A at 40 °C, TM240 release, 440 kA at 240 V, line protection.

Siemens 3VA1340-7EF32-0AA0 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

3VA1340-7EF32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1340-7EF32-0AA0 — 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 °C392 A
Current at 60 °C384 A
Current at 65 °C376 A
Current at 70 °C367 A
Switching capacity classC
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V242 kA
Breaking capacity at 440 V242 kA
Breaking capacity at 500 V154 kA
Breaking capacity at 690 V17 kA
Power loss, max.92.1 W
3VA1340-7EF32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1340-7EF32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1340-7EF32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1340-7EF32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1340-7EF32-0AA0 — 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 SENTRON 3VA1340-7EF32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a rated current of 400 A at 40 °C and a breaking capacity of 440 kA at 240 V. The overcurrent release is a TM240 thermal-magnetic unit, which means it provides both overload (thermal) and short-circuit (magnetic) protection without electronic adjustment — a fixed-trip design suited for standard distribution panels where qualification documentation must match a single, traceable part number.

Current derating and thermal management

Maximum power loss is 92.1 W, so panel ventilation and inter-device spacing must accommodate that heat load — particularly in a densely packed switchboard.

Breaking capacity across voltage levels

The 3VA1340-7EF32-0AA0 delivers 440 kA at 240 V, 242 kA at 415 V and 440 V, 154 kA at 500 V, and 17 kA at 690 V.

Frequently asked questions

What is the breaking capacity of this MCCB at 240 V?

It is rated for 440 kA at 240 V, which covers most high-fault utility and industrial secondary-distribution applications at that voltage.

What compliance documentation is available for this part?

As a Siemens SENTRON device, the 3VA1340-7EF32-0AA0 carries the manufacturer's standard declarations and certifications; the specific approvals (UL, CSA, CE, IEC) are listed on the product label and in the accompanying documentation.

Where can I buy 3VA1340-7EF32-0AA0?

This MCCB is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

MPN
3VA1340-7EF32-0AA0