Siemens SENTRON 3VA2140-7MN36-0BH0, 3-pole molded case circuit breaker, 40 A rated at 40 °C, interrupting capacity 330 kA at 240 V, motor protection design with undervoltage release and auxiliary switches.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA21407MN360AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| 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 | 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. | 4.1 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350M |
| Overcurrent protection function | LSI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | double-sided box terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | Yes |
| Voltage trigger | No |
| Trip indicator | Yes |
| 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 |
Interrupting capacity is 330 kA at 240 V AC, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. That SCCR headroom lets it sit upstream in a high-fault panel without cascading to a larger frame — a real advantage when coordinating with downstream motor starters or smaller branch breakers.
The basic switch (3VA21407MN360AA0) is pre-assembled with two auxiliary switches plus a trip alarm switch (HQ), so you get status feedback without adding external contact blocks.
Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
Rated 40 A continuously from 40 °C to 70 °C ambient with no derating.
330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.
Factory-fitted with an undervoltage release (UVR), two auxiliary switches, and one trip alarm switch (HQ).
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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