Siemens SENTRON 3VM1050-2ED42-0AA0, 4-pole molded case circuit breaker, 50 A rated at 40 °C, 500 A frame, TM210 thermal-magnetic release, line protection design.
| 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 | 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 | C |
| Breaking capacity at 240 V | 53 kA |
| Breaking capacity at 415 V | 32 kA |
| Breaking capacity at 440 V | 14 kA |
| Breaking capacity at 500 V | 8 kA |
| Power loss, max. | 15 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM210 |
| 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 connection |
| 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 | 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. | 12 000 |
| Height | 130 mm |
| Width | 101.6 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 4 in |
| Depth (in) | 2.76 in |
The TM210 thermal-magnetic release handles overloads thermally and short circuits magnetically — no electronic trip unit, no communication function, no voltage or undervoltage release on this variant.
Rated 50 A straight across from 40 °C to 50 °C, then it begins to taper: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The 15 W maximum power loss is modest for a 4-pole 50 A MCCB; ventilation in the enclosure is still advisable.
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