Siemens SENTRON 3VA2125-5HN42-0AA0, molded case circuit breaker, 4-pole, 25 A rated current, ETU350 electronic release, interrupting rating 187 kA at 240 V, IP40 front protection.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Current at 40 °C | 25 A |
| Current at 45 °C | 25 A |
| Current at 50 °C | 25 A |
| Current at 55 °C | 25 A |
| Current at 60 °C | 25 A |
| Current at 65 °C | 25 A |
| Current at 70 °C | 25 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 121 kA |
| Breaking capacity at 500 V | 75.6 kA |
| Breaking capacity at 690 V | 3.7 kA |
| Power loss, max. | 0.6 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU350 |
| Overcurrent protection function | LSI |
| Ground-fault monitoring | Without |
| Parameter | Value |
|---|---|
| Main circuit connection type | on both sides nut keeper kit |
| 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 | 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 |
|---|---|
| Height | 181 mm |
| Width | 140 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 5.51 in |
| Depth (in) | 3.39 in |
The Siemens SENTRON 3VA2125-5HN42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated at 25 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed for warm panel environments.
The interrupting rating of 187 kA at 240 V and 121 kA at 415 V covers most industrial service-entrance and feeder applications; at 690 V it drops to 3.7 kA, so it's not suited for high-voltage motor circuits at that level.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
121 kA at 415 V, which covers most industrial feeder applications at that voltage level.
No — the 5SQ2670-2YA06 is a withdrawable MCCB with a different mounting footprint. The 3VA2125-5HN42-0AA0 is a fixed-mount breaker; panel rewiring and mounting changes would be required.
As a Siemens SENTRON product, it carries CE, UL, and CSA certifications, and complies with RoHS and REACH. Specific declaration documents are available on request.
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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