Siemens SENTRON 3VA2 series, 3-pole molded case circuit breaker, 63 A rated continuous current, 187 kA at 240 V AC, ETU350 electronic trip unit, undervoltage release, 2 auxiliary switches HQ.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Basic switch (supplied) ref. | 3VA2163-5HN36-0AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 63 A |
| Current at 45 °C | 63 A |
| Current at 50 °C | 63 A |
| Current at 55 °C | 60.6375 A |
| Current at 60 °C | 58.275 A |
| Current at 65 °C | 55.9125 A |
| Current at 70 °C | 53.55 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 | 79 kA |
| Breaking capacity at 690 V | 4.25 kA |
| Power loss, max. | 6.5 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350 |
| Parameter | Value |
|---|---|
| Main circuit connection type | box terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | Yes |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 2 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Height | 181 mm |
| Width | 105 mm |
| Depth | 86 mm |
It carries 187 kA breaking capacity at 240 V AC and 121 kA at 415/440 V AC — numbers that tell you it handles serious fault current without cascading upstream.
Ambient operating range is -25 °C to 70 °C, with no derating needed up to 50 °C at 63 A; above that, current tapers to 53.55 A at 70 °C.
Rated insulation voltage 800 V. Breaking capacity at 690 V: 4.25 kA. Maximum power loss 6.5 W. Mechanical endurance 20,000 operations.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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