Siemens SENTRON 3VA1112-3EF32-0KA0, molded case circuit breaker, 3-pole, 125 A at 40 °C, TM240 overcurrent release, shunt trip, line protection design.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11123EF320AA0 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 125 A |
| Current at 45 °C | 125 A |
| Current at 50 °C | 125 A |
| Current at 55 °C | 122 A |
| Current at 60 °C | 120 A |
| Current at 65 °C | 117 A |
| Current at 70 °C | 114 A |
| Switching capacity class | N |
| Breaking capacity at 240 V | 75.6 kA |
| Breaking capacity at 415 V | 52.5 kA |
| Breaking capacity at 440 V | 32 kA |
| Breaking capacity at 500 V | 11.9 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Power loss, max. | 28.1 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 | 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. | 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 |
The 3-pole unit breaks up to 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that govern its fault-clearing capability in a given system voltage. The shunt trip (STL) auxiliary release allows remote tripping, useful for emergency-stop or interlock circuits.
Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a standard SENTRON 3VA footprint that fits existing distribution board cutouts.
This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.
Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
The continuous current rating is 125 A at 40 °C, 45 °C, and 50 °C ambient. It derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C.
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