Siemens SENTRON 3VA1125-4EF32-0DA0, Molded case circuit breaker, 3-pole, 25 A rated at 40 °C, 121 kA breaking at 240 V, with undervoltage release (UVR).
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11254EF320AA0 |
| 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 | 24 A |
| Current at 60 °C | 24 A |
| Current at 65 °C | 23 A |
| Current at 70 °C | 23 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 500 V | 11.9 kA |
| Breaking capacity at 690 V | 11.9 kA |
| Power loss, max. | 11 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 | Yes |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| 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. | 20 000 |
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
| Height (in) | 5.12 in |
| Width (in) | 3 in |
| Depth (in) | 2.76 in |
Breaking capacity reaches 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that cover most industrial service-entrance and distribution panel fault levels.
Rated current holds at 25 A from 40 °C through 50 °C, then steps down to 24 A at 55–60 °C and 23 A at 65–70 °C. Physical envelope is 130 mm high, 76.2 mm wide, 70 mm deep; the width matches standard 3-pole MCCB cutouts in most Siemens SENTRON distribution boards.
Rated breaking capacity is 121 kA at 240 V AC, 75.6 kA at 415 V AC, 52.5 kA at 440 V AC, and 11.9 kA at both 500 V and 690 V AC.
Yes, it is fitted with an undervoltage release (UVR) as standard, designated as the auxiliary release type.
Height 130 mm, width 76.2 mm, depth 70 mm.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
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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