Siemens SENTRON 3VA2125-6HK42-0AA0, molded case circuit breaker, 4-pole, 25 A continuous, ETU340 electronic trip unit, interrupting capacity 242 kA at 240 V.
| 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 | 25 A |
| Current at 45 °C | 25 A |
| Current at 50 °C | 25 A |
| Current at 55 °C | 25 A |
| Current at 60 °C | 25 A |
| Current at 65 °C | 25 A |
| Current at 70 °C | 25 A |
| Switching capacity class | H |
| Breaking capacity at 240 V | 242 kA |
| Breaking capacity at 415 V | 187 kA |
| Breaking capacity at 440 V | 187 kA |
| Breaking capacity at 500 V | 121 kA |
| Breaking capacity at 690 V | 3.7 kA |
| Power loss, max. | 0.6 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU340 |
| Overcurrent protection function | ELISA LI |
| Ground-fault monitoring | Without |
| Grounding protection function | No |
| Parameter | Value |
|---|---|
| Main circuit connection type | on both sides nut keeper kit |
| 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. | 25 000 |
| Height | 181 mm |
| Width | 140 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 5.51 in |
| Depth (in) | 3.39 in |
That interrupting capacity — 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V — means it handles high-fault scenarios on the secondary side of a distribution transformer without cascading upstream.
Footprint is 140 mm wide by 181 mm tall by 86 mm deep — standard for a 4-pole SENTRON 3VA frame that size.
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