Siemens SENTRON 3VA2340-7HN32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, ETU350 electronic trip unit, 330 kA interrupting at 240 VAC, line protection design.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 400 A |
| Current at 45 °C | 400 A |
| Current at 50 °C | 400 A |
| Current at 55 °C | 385 A |
| Current at 60 °C | 370 A |
| Current at 65 °C | 355 A |
| Current at 70 °C | 340 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 | 7.5 kA |
| Power loss, max. | 96 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 | 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. | 20 000 |
| Height | 248 mm |
| Width | 138 mm |
| Depth | 110 mm |
| Height (in) | 9.76 in |
| Width (in) | 5.43 in |
| Depth (in) | 4.33 in |
The interrupting ratings climb to 330 kA at 240 V, 242 kA at 415 V, and 187 kA at 500 V, tapering to 7.5 kA at 690 V.
Above that it derates: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. If the enclosure runs hot from other gear, size the feeder for the derated number, not the nameplate.
IP40 on the front is typical for a panel-mounted MCCB; the line-side and load-side terminals are not sealed, so the enclosure provides the overall IP rating.
It is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time.
242 kA at 415 V, which covers most industrial secondary-side faults without needing upstream fuses.
No — this variant ships without an undervoltage release or voltage trigger. It is a straight line-protection breaker with the ETU350 trip unit.
-25 °C to 70 °C operating, -40 °C to 80 °C storage. The continuous current derates above 50 °C as detailed in the thermal table.
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