Siemens SENTRON 3VA2440-6KP32-0AA0, molded case circuit breaker, 3-pole, 400 A, ETU850 overcurrent release, breaking capacity 242 kA at 240 V, line protection.
| 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 | 400 A |
| Current at 45 °C | 400 A |
| Current at 50 °C | 400 A |
| Current at 55 °C | 400 A |
| Current at 60 °C | 400 A |
| Current at 65 °C | 400 A |
| Current at 70 °C | 400 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 | 9 kA |
| Power loss, max. | 63.5 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. | 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 |
It carries a 242 kA interrupting capacity at 240 V, stepping down to 187 kA at 415/440 V and 121 kA at 500 V, with a 9 kA floor at 690 V. The ETU850 electronic trip unit handles line protection duty with communication capability, making it a fit for main or feeder breakers in LV switchboards where selective coordination matters.
The 400 A rating at 70 °C means this breaker handles full load in a warm enclosure without downsizing — a common pain point with breakers that derate above 40 °C.
242 kA at 240 V, stepping to 187 kA at 415/440 V, 121 kA at 500 V, and 9 kA at 690 V.
Sourced to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.
The ETU850 electronic overcurrent release, with communication capability for adjustable protection curves.
No — it holds 400 A continuously from 40 °C through 70 °C, so no derating is needed in warm enclosures.
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