Siemens SENTRON 3VA1, molded case circuit breaker, 3-pole, 25 A, 121 kA at 240 V, line protection, undervoltage release, 2 aux + 1 trip alarm switch.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Basic switch (supplied) ref. | 3VA11254EF320AA0 |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| 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 | 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 |
|---|---|
| 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 |
The 3VA1125-4EF32-0DH0: Three-pole unit, 76.2 mm wide (3 inches), 130 mm tall, 70 mm deep — standard MCCB footprint for a 25 A frame. The 70 mm depth (2.76 in) is the dimension to watch when planning gland-plate clearance or door swing. It ships with an undervoltage release (UVR) fitted and a complement of two auxiliary switches plus one trip alarm switch (HQ type), so it arrives ready for status feedback to a PLC or annunciator without ordering add-on modules separately.
121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
Width is 76.2 mm (3 in), depth is 70 mm (2.76 in). Height is 130 mm (5.12 in).
It includes an undervoltage release (UVR) plus two auxiliary switches and one trip alarm switch (HQ type).
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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