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Siemens 3VA1140-4EF32-0BH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1140-4EF32-0BH0 SENTRON MCCB, 40 A, 121 kA at 240

MPN3VA1140-4EF32-0BH0

Siemens SENTRON 3VA1140-4EF32-0BH0, molded case circuit breaker, 3-pole, 40 A rated current at 40 °C, 121 kA breaking capacity at 240 V AC, line protection, undervoltage release, 70 mm depth.

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

3VA1140-4EF32-0BH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11404EF320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1140-4EF32-0BH0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C40 A
Current at 45 °C40 A
Current at 50 °C40 A
Current at 55 °C39 A
Current at 60 °C39 A
Current at 65 °C38 A
Current at 70 °C37 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.13.3 W
3VA1140-4EF32-0BH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1140-4EF32-0BH0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1140-4EF32-0BH0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1140-4EF32-0BH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1140-4EF32-0BH0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

What this MCCB delivers

Breaking capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC — enough headroom for high-fault utility feeds or transformer secondaries without cascading upstream breakers. At 690 V it still interrupts 11.9 kA, covering most industrial motor circuits. Auxiliary contacts include two auxiliary switches plus one trip-alarm switch (HQ), giving the panel builder feedback on breaker position and fault state without adding external relays. Trip indicator confirms the breaker opened on overload or short circuit, not manual operation.

The derating table above 55 °C (39 A at 55 °C, 38 A at 65 °C) is the real-world limit; don't size the breaker at 40 A if the panel ambient exceeds 50 °C.

Frequently asked questions

Where can I buy 3VA1140-4EF32-0BH0 and how do I get a price?

The 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 price and lead time.

What is 3VA1140-4EF32-0BH0's listed depth?

The body depth is 70 mm (2.76 in). Allow additional clearance behind the panel for the undervoltage release and auxiliary switch wiring.

What is 3VA1140-4EF32-0BH0's rated breaking capacity at 240 V?

At 240 V AC the breaking capacity is 121 kA. At 415 V AC it is 75.6 kA, and at 690 V AC it is 11.9 kA.

Does 3VA1140-4EF32-0BH0 include an undervoltage release?

Yes, it is equipped with an undervoltage release (UVR) that trips the breaker when line voltage drops below the release threshold. The auxiliary switch configuration is two auxiliary switches plus one trip-alarm switch (HQ).

MPN
3VA1140-4EF32-0BH0