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Siemens 3VA1040-3ED32-0BC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1040-3ED32-0BC0 SENTRON MCCB, 40 A, 3-Pole, 75.6

MPN3VA1040-3ED32-0BC0

Siemens SENTRON 3VA1040-3ED32-0BC0, molded case circuit breaker, 3-pole, 40 A at 40 °C, 75.6 kA interrupting at 240 V, line protection design, undervoltage release, 2 auxiliary switches HQ.

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

3VA1040-3ED32-0BC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA10403ED320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1040-3ED32-0BC0 — 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 °C38.4 A
Current at 60 °C37.6 A
Current at 65 °C36.8 A
Current at 70 °C36 A
Switching capacity classN
Breaking capacity at 240 V75.6 kA
Breaking capacity at 415 V52.5 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V7.5 kA
Breaking capacity at 690 V7.5 kA
Power loss, max.13.3 W
3VA1040-3ED32-0BC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1040-3ED32-0BC0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1040-3ED32-0BC0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts2
3VA1040-3ED32-0BC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1040-3ED32-0BC0 — 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

The Siemens SENTRON 3VA1040-3ED32-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A at 40 °C, with a 75.6 kA interrupting capacity at 240 V.

Interrupting capacity and thermal derating

At 415 V it drops to 52.5 kA, at 440 V to 32 kA, and at 500 V and 690 V it holds at 7.5 kA. The 40 A rating holds steady from 40 °C up to 50 °C; above that it derates to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C.

Auxiliary releases and wiring

The two HQ auxiliary switches provide status feedback for remote monitoring or PLC inputs.

Frequently asked questions

How do I get current pricing and availability for 3VA1040-3ED32-0BC0?

Submit an RFQ through the distributor. Pricing and stock are confirmed at quote time — no public price or live count is listed here.

What is 3VA1040-3ED32-0BC0's interrupting capacity at 240 V?

75.6 kA at 240 V. At 415 V it's 52.5 kA, at 440 V it's 32 kA, and at 500 V and 690 V it's 7.5 kA.

Does 3VA1040-3ED32-0BC0 include an undervoltage release?

Yes, it ships with an undervoltage release (UVR) as the auxiliary release, plus two HQ auxiliary switches for status feedback.

MPN
3VA1040-3ED32-0BC0