Siemens SENTRON 3VA2125-8JP42-0AA0, molded case circuit breaker, 4-pole, 25 A continuous, ETU550 electronic trip unit, 440 kA at 240 V, IP40 front.
| 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 | L |
| Breaking capacity at 240 V | 440 kA |
| Breaking capacity at 415 V | 330 kA |
| Breaking capacity at 440 V | 330 kA |
| Breaking capacity at 500 V | 220 kA |
| Breaking capacity at 690 V | 52.5 kA |
| Power loss, max. | 0.5 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU550 |
| Overcurrent protection function | LSI |
| 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 | Yes |
| 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 |
The interrupting ratings climb to 440 kA at 240 V, 330 kA at 415 V, and 220 kA at 500 V — numbers that tell you this breaker handles high available fault current without cascading upstream.
That's a solid spec for a crowded enclosure where ambient heat builds. The ETU550 release lets you set the long-time pickup and short-time delay, so you can coordinate selectivity with downstream breakers.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.
440 kA at 240 V, 330 kA at 415 V, 330 kA at 440 V, 220 kA at 500 V, and 52.5 kA at 690 V.
25 A continuous, with no derating from -25 °C to 70 °C ambient.
An ETU550 electronic trip unit, which provides adjustable overload and short-circuit protection curves for selectivity coordination.
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