The Siemens SENTRON 3VA2040-6HN32-0BD0 is a 3-pole molded case circuit breaker rated for 40 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That makes it a straight drop-in for a 40 A feeder or branch circuit in a panel that sees elevated internal temperatures. Interrupting capacity is the headline here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. No trip indicator, no voltage-trigger function, no communication module — this is a straightforward line-protection MCCB for a fixed-load feeder, not a metering or remote-trip device.
Siemens 3VA2040-6HN32-0BD0 SENTRON MCCB, 40 A, 3-Pole, 242 k
MPN3VA2040-6HN32-0BD0
Siemens SENTRON 3VA2040-6HN32-0BD0, 3-pole molded case circuit breaker, 40 A continuous, interrupting ratings 242 kA at 240 V through 3 kA at 690 V, line protection design with undervoltage release.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA20406HN320AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| 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 | H |
| Breaking capacity at 240 V | 242 kA |
| Breaking capacity at 415 V | 187 kA |
| Breaking capacity at 440 V | 187 kA |
| Breaking capacity at 500 V | 121 kA |
| Breaking capacity at 690 V | 3 kA |
| Power loss, max. | 4.7 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350 |
| Overcurrent protection function | LSI |
| 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 | Yes |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 3 |
| 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 | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
Product details
Frequently asked questions
Where can I buy 3VA2040-6HN32-0BD0?
This 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 the interrupting capacity of 3VA2040-6HN32-0BD0 at 240 V?
242 kA at 240 V, which is high enough for most transformer-secondaries and high-fault bus applications without requiring a current-limiting fuse upstream.
Does 3VA2040-6HN32-0BD0 include an undervoltage release?
Yes, it includes an undervoltage release (UVR) as part of the auxiliary release design, along with three auxiliary switches HQ.
MPN
3VA2040-6HN32-0BD0