The Siemens 3VA2063-6HN32-0KA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current, with a flat thermal derating curve from 40 °C through 70 °C — meaning it holds full 63 A across that entire ambient range without needing to upsize the frame. That matters for a crowded panel where internal temperature rises above 40 °C; you don't lose headroom. Breaking capacity is voltage-dependent: 242 kA at 240 VAC, 187 kA at 415/440 VAC, 121 kA at 500 VAC, and 3 kA at 690 VAC. At 690 V the 3 kA limit means this is not the breaker for 690 V motor circuits unless the available fault current is very low.

Siemens 3VA2063-6HN32-0KA0 SENTRON MCCB, 63 A, 3-Pole, 242 k
Siemens SENTRON molded case circuit breaker, 3VA2063-6HN32-0KA0, 3-pole, 63 A rated continuous current, 242 kA breaking capacity at 240 VAC, line protection design with shunt trip release.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA20636HN320AA0 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 63 A |
| Current at 45 °C | 63 A |
| Current at 50 °C | 63 A |
| Current at 55 °C | 63 A |
| Current at 60 °C | 63 A |
| Current at 65 °C | 63 A |
| Current at 70 °C | 63 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 | 3 kA |
| Power loss, max. | 5.4 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 | Yes |
| 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 | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
Product details
Frequently asked questions
What compliance documentation does this brand provide for 3VA2063-6HN32-0KA0?
Siemens SENTRON MCCBs are typically supplied with CE, UL, and CSA certifications, plus RoHS and REACH declarations. The specific approvals for this order code should be confirmed from the manufacturer's documentation package available at time of order.