Siemens SENTRON 3VA1112-4EF36-0KC0, molded case circuit breaker, 3-pole, 125 A, line protection, TM240 overcurrent release, 121 kA at 240 V.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AA12 |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Current at 40 °C | 125 A |
| Current at 45 °C | 125 A |
| Current at 50 °C | 125 A |
| Current at 55 °C | 120 A |
| Current at 60 °C | 117.5 A |
| Current at 65 °C | 115 A |
| Current at 70 °C | 112.5 A |
| Switching capacity class | S |
| Breaking capacity at 240 V | 121 kA |
| Breaking capacity at 415 V | 75.6 kA |
| Breaking capacity at 440 V | 52.5 kA |
| Breaking capacity at 690 V | 11.9 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 | 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 |
|---|---|
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
The interrupting ratings climb to 121 kA at 240 V AC and 75.6 kA at 415 V AC, so it handles high-fault scenarios without cascading upstream.
Two HQ auxiliary switches are built in, giving you status feedback for a PLC or a remote indication lamp.
Thermal derating is minimal up to 50 °C — still 125 A. At 55 °C it drops to 120 A, at 60 °C to 117.5 A, and at 70 °C to 112.5 A. That's a gentle slope; you don't lose much headroom in a warm panel.
The depth is 70 mm, width 76.2 mm, height 130 mm.
Yes, the physical dimensions (130 x 76.2 x 70 mm) are identical to the 3VA1112-5EF32-0CA0, so it fits the same mounting cutout and bus connection. However, the TM240 thermal-magnetic release on this unit differs from the release on the peer — verify the trip curve and auxiliary wiring (the shunt trip and aux switches may be pinned differently) before committing the BOM.
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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