Siemens SENTRON 3VA1332-6GF42-0AA0, molded case circuit breaker, 4-pole, 320 A, TM240 release, 220 kA at 240 V AC, IP40 front, 248 x 184 x 110 mm.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 320 A |
| Current at 45 °C | 320 A |
| Current at 50 °C | 320 A |
| Current at 55 °C | 313 A |
| Current at 60 °C | 306 A |
| Current at 65 °C | 299 A |
| Current at 70 °C | 292 A |
| Switching capacity class | H |
| Breaking capacity at 240 V | 220 kA |
| Breaking capacity at 415 V | 154 kA |
| Breaking capacity at 440 V | 154 kA |
| Breaking capacity at 500 V | 121 kA |
| Breaking capacity at 690 V | 17 kA |
| Power loss, max. | 80.1 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | nut keeper kit on both ends |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| 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. | 20 000 |
| Height | 248 mm |
| Width | 184 mm |
| Depth | 110 mm |
| Height (in) | 9.76 in |
| Width (in) | 7.24 in |
| Depth (in) | 4.33 in |
At 415 V the breaking capacity is still 154 kA, and it holds 121 kA at 500 V, so it handles substantial fault current across common low-voltage networks.
Above that it derates linearly: 313 A at 55 °C, 306 A at 60 °C, 299 A at 65 °C, and 292 A at 70 °C (–). Maximum power loss is 80.1 W, which is moderate for a 320 A frame; factor that into the enclosure thermal calculation. The front face carries an IP40 protection class.
The body depth is 110 mm, or 4.33 inches. Allow additional clearance behind the panel for cable bending and arc chute venting.
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