Siemens SENTRON 3VA2025-5KQ32-0AA0, molded case circuit breaker, 3-pole, 25 A continuous, 187 kA interrupting at 240 V AC, line protection design with communication and ground-fault monitoring.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| 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 | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 75.6 kA |
| Breaking capacity at 690 V | 3 kA |
| Power loss, max. | 0.84 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU860 |
| Overcurrent protection function | LSIG |
| Ground-fault monitoring | Summation current formation L-conductor |
| Grounding protection function | Yes |
| 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 | Yes |
| 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 | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
Its interrupting capacity reaches 187 kA at 240 V AC, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V — the high 240 V rating makes it a fit for low-voltage main or feeder breakers where fault current is high.
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA frame width that fits the same DIN-rail or screw-mount footprint as other 3-pole units in the series.
This MCCB is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time.
At 240 V it interrupts 187 kA; at 415 V and 440 V, 121 kA; at 500 V, 75.6 kA; and at 690 V, 3 kA. The 187 kA at 240 V covers high-fault service-entrance applications.
Yes, it has a communication function and ground-fault monitoring using summation current formation on the L-conductor, enabling remote status and leakage reporting.
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