Siemens SENTRON 3VA2 series, Molded case circuit breaker, 3VA2140-7HK36-0AA0, 3-pole, 40 A, ETU340 electronic trip unit, line protection, 330 kA at 240 V.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| 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 | ETU340 |
| Overcurrent protection function | ELISA LI |
| Ground-fault monitoring | Without |
| 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 | 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 | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
Rated 40 A continuous at 40 °C through 70 °C without derating, it carries a 3-pole design and an insulation voltage of 800 V. Interrupting capacity reaches 330 kA at 240 V, 242 kA at 415 V and 440 V, and 187 kA at 500 V — figures that place it in the high-fault-current class for industrial distribution.
Maximum power dissipation is 1.6 W, so no special ventilation is needed in a standard IP40 enclosure.
It uses an ETU340 electronic trip unit, designed for line protection applications. The trip unit is adjustable and provides curve shaping for selective coordination.
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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