Siemens SENTRON 3VA1112-4EE46-0AA0, 4-pole molded case circuit breaker, 125 A rated current at 40 °C, TM220 thermal-magnetic trip, breaking capacity 121 kA at 240 V AC.
| 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 | 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 | S |
| Breaking capacity at 240 V | 121 kA |
| Breaking capacity at 415 V | 75.6 kA |
| Breaking capacity at 440 V | 52.5 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 | TM220 |
| Overcurrent protection function | LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | box terminal on both sides |
| 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 | 130 mm |
| Width | 101.6 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 4 in |
| Depth (in) | 2.76 in |
At 55 °C it's 122 A, at 60 °C it's 120 A, and at 70 °C it's 114 A. The breaking capacity drops as voltage rises: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V.
Dimensions are 130 mm high, 101.6 mm wide, 70 mm deep — a 4-pole MCCB that fits a standard panel footprint. Power loss is 28.1 W maximum at rated load, so account for that heat in the enclosure sizing.
121 kA at 240 V AC. At 415 V it's 75.6 kA, at 440 V it's 52.5 kA, and at 500 V / 690 V it's 11.9 kA.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
No related articles