Siemens SENTRON 3VA2040-6KP42-0AA0, molded case circuit breaker, 4-pole, 40 A, ETU850 electronic release, line protection, 242 kA at 240 V, IP40 front, with communication function.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| 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. | 2.2 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU850 |
| Overcurrent protection function | LSI |
| Ground-fault monitoring | Without |
| 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 | Yes |
| Measurement function | Yes |
| 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 |
The Siemens SENTRON 3VA2040-6KP42-0AA0 is a 4-pole molded case circuit breaker rated 40 A continuous at 40 °C through 70 °C — no derating needed across that span, which simplifies panel thermal budgeting. Its ETU850 electronic release provides line protection with communication capability, so the breaker reports status and trip events to the control system without a separate auxiliary module.
Maximum power loss is 2.2 W, which keeps internal cabinet temperature rise negligible.
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