That thermal stability is unusual for a compact MCCB and simplifies panel build when the breaker sits near other heat sources. The interrupting capacity tells the selectivity story: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The sharp drop at 690 V (3.7 kA) means this is not a 690 V main — it is a 400 V class device with a 690 V withstand rating for isolation duty only. Four poles handle three-phase plus neutral, or two independent circuits in a single enclosure. The IP40 front protection suits indoor panel mounting; no additional gasketing is needed for clean, dry environments.
Siemens 3VA2140-7HL42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU32
MPN3VA2140-7HL42-0AA0
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Siemens SENTRON 3VA2140-7HL42-0AA0, 4-pole molded case circuit breaker, 40 A continuous rating, ETU320 electronic trip unit, 330 kA interrupting capacity at 240 V.
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
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 40 A |
| Current at 45 °C | 40 A |
| Current at 50 °C | 40 A |
| Current at 55 °C | 40 A |
| Current at 60 °C | 40 A |
| Current at 65 °C | 40 A |
| Current at 70 °C | 40 A |
| Switching capacity class | C |
| Breaking capacity at 240 V | 330 kA |
| Breaking capacity at 415 V | 242 kA |
| Breaking capacity at 440 V | 242 kA |
| Breaking capacity at 500 V | 187 kA |
| Breaking capacity at 690 V | 3.7 kA |
| Power loss, max. | 1.6 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU320 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | on both sides nut keeper kit |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 0 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Mechanical service life (operating cycles), typ. | 25 000 |
| Height | 181 mm |
| Width | 140 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 5.51 in |
| Depth (in) | 3.39 in |
Product details
Frequently asked questions
Where can I buy the 3VA2140-7HL42-0AA0 and how is it quoted?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the closest functional second-source to the 3VA2140-7HL42-0AA0?
Within the SENTRON 3VA2 family, the 3VA2163-8HM32-0AA0 is a higher-current variant (63 A frame) with a different trip unit. The 3VA2140-7HL42-0AA0 has a 40 A continuous rating and ETU320 trip; the 3VA2163-8HM32-0AA0 carries a 63 A rating and a different trip design. They share the same 4-pole form factor and mounting footprint, so a panel laid out for one can accept the other without rewiring, but the protective settings and continuous rating differ — coordination studies must be re-run if substituting.
What compliance documentation does Siemens provide for this MCCB?
As a current-production SENTRON MCCB, the 3VA2140-7HL42-0AA0 carries CE marking for the European market and is designed to meet IEC 60947-2. RoHS and REACH declarations are available from Siemens documentation. UL/CSA listing status should be verified against the specific catalog number for North American projects.
MPN
3VA2140-7HL42-0AA0