Siemens SENTRON 3VA2 series, molded case circuit breaker, 4-pole, 40 A, ETU340 electronic trip unit, line protection, 440 kA breaking capacity at 240 V, IP40 front.
| 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 | L |
| Breaking capacity at 240 V | 440 kA |
| Breaking capacity at 415 V | 330 kA |
| Breaking capacity at 440 V | 330 kA |
| Breaking capacity at 500 V | 220 kA |
| Breaking capacity at 690 V | 52.5 kA |
| Power loss, max. | 1.2 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU340 |
| Overcurrent protection function | ELISA 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 |
Breaking capacity is the headline figure here: 440 kA at 240 V, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That puts it in the high-interrupting class — sized for large transformer secondaries or bus-tie applications where fault current runs high. Insulation voltage rated 800 V, so it handles 690 V line-to-line comfortably.
Trip indicator not fitted, so fault indication relies on the panel's own annunciation.
It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V.
No — it holds 40 A continuously from 40 °C through 70 °C ambient with no derating.
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