Siemens SENTRON 3VA1580-5EF32-0CA0, 3-pole molded case circuit breaker, 800 A at 40 °C, 187 kA interrupting capacity at 240 V, line protection design with TM240 thermal-magnetic release and undervoltage release.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA15805EF320AA0 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 800 A |
| Current at 45 °C | 800 A |
| Current at 50 °C | 800 A |
| Current at 55 °C | 780 A |
| Current at 60 °C | 761 A |
| Current at 65 °C | 741 A |
| Current at 70 °C | 722 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 | 52.5 kA |
| Power loss, max. | 242.5 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 | Yes |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | No |
| 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. | 10 000 |
| Height | 320 mm |
| Width | 210 mm |
| Depth | 120 mm |
| Height (in) | 12.6 in |
| Width (in) | 8.27 in |
| Depth (in) | 4.72 in |
The Siemens 3VA1580-5EF32-0CA0 is a SENTRON molded case circuit breaker rated for line protection, carrying 800 A continuously at 40 °C and derating to 722 A at 70 °C — so the thermal curve governs real-world loading in a warm enclosure, not the nameplate. Interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 52.5 kA at 690 V, giving selectivity headroom for high-fault panels downstream of a large transformer.
187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 52.5 kA at 690 V — these are the maximum fault currents the breaker can safely interrupt at each voltage level.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
800 A at 40 °C, 800 A at 50 °C, 780 A at 55 °C, 761 A at 60 °C, 741 A at 65 °C, and 722 A at 70 °C — the thermal derating curve matters for panels running above 50 °C ambient.
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