Siemens SENTRON 3VA1125-5EF36-0AH0, molded case circuit breaker, 3-pole, 25 A, 187 kA at 240 V, line protection, TM240 release.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 25 A |
| Current at 45 °C | 25 A |
| Current at 50 °C | 25 A |
| Current at 55 °C | 24 A |
| Current at 60 °C | 23.5 A |
| Current at 65 °C | 23 A |
| Current at 70 °C | 22.5 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 75.6 kA |
| Breaking capacity at 690 V | 17 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Parameter | Value |
|---|---|
| Main circuit connection type | box terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 3 |
| 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 | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V — numbers that put it squarely in high-fault-duty distribution panels where a standard MCB would weld shut.
At 55 °C it drops to 24 A, at 60 °C to 23.5 A, at 65 °C to 23 A, and at 70 °C to 22.5 A. The thermal adjustment (tr max.) is set at 1 s, which means short-circuit protection trips fast enough to protect downstream cable in a coordinated distribution scheme.
Pricing and availability are confirmed at quote time. Submit an RFQ against this order code; we source it through independent distribution channels.
The interrupting capacity at 415 V is 121 kA.
It includes 2 auxiliary switches plus 1 trip alarm switch (HQ version).
The rated continuous current Iu is 25 A.
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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