The interrupting ratings climb to 187 kA at 240 V AC, drop to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 7.5 kA at 690 V. That SCCR curve tells you where it can sit without cascading upstream: at 480 V (common in North American plants) it holds 121 kA; at 690 V (European industrial grids) the 7.5 kA limit means you need a current-limiting upstream device if fault current exceeds that. Continuous current is rated 400 A from 40 °C through 50 °C, then derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C — so a panel builder stuffing this into a warm enclosure needs to check the ambient derating curve before committing the BOM line. The communication function is onboard, so it can feed power-monitoring data to a higher-level system.
Siemens 3VA2340-5KP32-0AJ0 SENTRON MCCB, 400 A, 3-Pole, 187
Siemens SENTRON 3VA2340-5KP32-0AJ0, molded case circuit breaker, 3-pole, 400 A continuous, adjustable trip 600–4000 A, 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, 7.5 kA at 690 V.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA2340-5KP32-0AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB11 |
| 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 | 375 A |
| Current at 60 °C | 350 A |
| Current at 65 °C | 325 A |
| Current at 70 °C | 300 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 75.6 kA |
| Breaking capacity at 690 V | 7.5 kA |
| Power loss, max. | 96 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU850 |
| 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 | Yes |
| Communication function | Yes |
| Measurement function | Yes |
| Motor drive option | Yes |
| Auxiliary CO contacts | 3 |
| 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 |
Product details
Frequently asked questions
What is the interrupting capacity of 3VA2340-5KP32-0AJ0 at 480 V?
At 415 V and 440 V it is rated 121 kA; at 500 V it drops to 75.6 kA. For 480 V (common in North America) the 121 kA rating at 440 V is the closest published figure — coordination studies typically use the next-lower published value.
Where can I buy 3VA2340-5KP32-0AJ0?
This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for a firm offer.
Will 3VA2340-5KP32-0AJ0 fit in a panel designed for 3VA1110-5EF32-0AM0?
No — the 3VA2340 is a 400 A frame with a 600–4000 A trip range, while the 3VA1110 is a smaller frame. The bus bars, mounting footprint, and SCCR coordination would all need re-evaluation.