Siemens SENTRON 3VA1150-6EF32-0KC0, molded case circuit breaker, 3-pole, line protection, 50 A (40 °C), breaking capacity 220 kA at 240 V, 154 kA at 415 V, with shunt trip (STL) and 2 auxiliary switches HQ.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11506EF320AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 50 A |
| Current at 45 °C | 50 A |
| Current at 50 °C | 50 A |
| Current at 55 °C | 49 A |
| Current at 60 °C | 48 A |
| Current at 65 °C | 46 A |
| Current at 70 °C | 45 A |
| Switching capacity class | H |
| Breaking capacity at 240 V | 220 kA |
| Breaking capacity at 415 V | 154 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 17 kA |
| Breaking capacity at 690 V | 17 kA |
| Power loss, max. | 14.6 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 | Yes |
| 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 |
|---|---|
| Mechanical service life (operating cycles), typ. | 20 000 |
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 3 in |
| Depth (in) | 2.76 in |
It's a 3-pole unit rated 50 A at 40 °C, with a rated insulation voltage of 800 V — so it handles standard 400/480 VAC buswork with margin.
At 240 VAC this breaker interrupts 220 kA; at 415 VAC it's 154 kA, and at 440 VAC it's 121 kA.
Above that it derates: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Submit an RFQ through this listing. The part is sourced and quoted to order; availability and current pricing are confirmed at quote time through independent distribution.
154 kA at 415 VAC. That's the figure for a 3-pole connection at that voltage level.
Yes. The breaker is equipped with a shunt trip (STL) for remote opening, plus two auxiliary switches HQ for status indication.
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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