The Siemens SENTRON 3VA2463-6JQ32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 630 A at 40 °C and derating to 450 A at 70 °C — so on a warm switchroom floor you lose nearly 30 % of the headline current; size the load at the ambient you actually run, not the 40 °C number. Interrupting capacity hits 242 kA at 240 V and still holds 187 kA at 415 V and 440 V — that is high enough for most utility-grade fault levels downstream of a large transformer, and it drops to 121 kA at 500 V and 9 kA at 690 V, so on a 690 V system this breaker is not your main; it is a feeder or subfeed. The adjustable thermal-magnetic trip is set with an initial value of 126 A and a full-scale value of 630 A, and a trip indicator gives you a visual flag without opening the door — useful when you are panel-walking a faulted line and do not want to break the seal on every breaker.
Siemens 3VA2463-6JQ32-0CH0 SENTRON MCCB, 630 A, 3-pole
MPN3VA2463-6JQ32-0CH0
Siemens SENTRON 3VA2463-6JQ32-0CH0, molded case circuit breaker, 3-pole, 630 A at 40 °C, interrupting capacity 242 kA at 240 V, line protection design, undervoltage release, communication function.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA2463-6JQ32-0AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 630 A |
| Current at 45 °C | 600 A |
| Current at 50 °C | 570 A |
| Current at 55 °C | 540 A |
| Current at 60 °C | 510 A |
| Current at 65 °C | 480 A |
| Current at 70 °C | 450 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. | 164.5 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU560 |
| Overcurrent protection function | LSIG |
| Ground-fault monitoring | Summation current formation L-conductor |
| Grounding protection function | Yes |
| 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 | Yes |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | Yes |
| Measurement function | No |
| 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
Does this MCCB include an undervoltage release?
Yes, it comes with an undervoltage release (UVR) plus 2 auxiliary switches and 1 trip alarm switch, all factory-fitted.
MPN
3VA2463-6JQ32-0CH0