Siemens SENTRON 3VA1225-6GF42-0KC0, molded case circuit breaker, 250 A, 4-pole, 220 kA at 240 V, line protection with shunt trip.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA12256GF420AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 250 A |
| Current at 45 °C | 250 A |
| Current at 50 °C | 250 A |
| Current at 55 °C | 243 A |
| Current at 60 °C | 237 A |
| Current at 65 °C | 230 A |
| Current at 70 °C | 223 A |
| Switching capacity class | H |
| Breaking capacity at 240 V | 220 kA |
| Breaking capacity at 415 V | 154 kA |
| Breaking capacity at 440 V | 75.6 kA |
| Breaking capacity at 500 V | 30 kA |
| Breaking capacity at 690 V | 17 kA |
| Power loss, max. | 57 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| 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 terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | Yes |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 2 |
| 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 | 158 mm |
| Width | 140 mm |
| Depth | 70 mm |
| Height (in) | 6.22 in |
| Width (in) | 5.51 in |
| Depth (in) | 2.76 in |
The 4-pole configuration covers three-phase plus neutral switching, common in North American 277/480 V panels and European 230/400 V TN systems.
Full 250 A rating holds up to 50 °C ambient; at 55 °C it derates to 243 A, at 65 °C to 230 A, and at 70 °C to 223 A. Max power loss is 57 W.
The basic switch supplied is 3VA12256GF420AA0. Dimensions: 140 mm wide, 158 mm high, 70 mm deep — fits standard 4-pole MCCB panel cutouts.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time.
220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V.
Yes, this variant includes a shunt trip (STL) auxiliary release and two HQ auxiliary switches.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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