Siemens SENTRON 3VA1225-5FF42-0AB0, molded case circuit breaker, 4-pole, 250 A, TM240 thermal-magnetic release, line protection, 187 kA at 240 V.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA11 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Current at 40 °C | 250 A |
| Current at 45 °C | 250 A |
| Current at 50 °C | 250 A |
| Current at 55 °C | 243.3 A |
| Current at 60 °C | 236.5 A |
| Current at 65 °C | 229 A |
| Current at 70 °C | 223 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 36 kA |
| Breaking capacity at 690 V | 17 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Parameter | Value |
|---|---|
| Main circuit connection type | lug terminal |
| 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 | 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 |
|---|---|
| Height | 158 mm |
| Width | 140 mm |
| Depth | 70 mm |
Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 36 kA at 440 V — figures that govern selective coordination in high-fault panels. The 250 A rating holds flat from 40 °C to 50 °C; above that it derates to 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C.
The N-conductor protection is set to 50 %, meaning the neutral pole is rated at half the phase current, which is typical for 4-wire systems where the neutral carries only unbalanced load.
This part is sourced and quoted to order against an RFQ through independent distribution channels. Submit an RFQ to confirm current availability and pricing at quote time.
At 415 V the interrupting capacity is 121 kA. At 240 V it is 187 kA, at 440 V it is 36 kA, and at 690 V it is 17 kA.
Yes, it comes with 2 auxiliary switches (HP type) built in. No undervoltage release, shunt trip, or communication module is included.
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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