Siemens 3VA6225-5HN31-2AA0 Molded Case Circuit Breaker
Key Specifications
| Parameter | Value |
|---|---|
| Current Rating | 250 A |
| Breaking Capacity | 35 kA |
| Number of Poles | 3 |
| Trip Function | ETU3-LSI (Electronic – Long/Short/Instantaneous) |
| Actuator Type | Lever |
| Mounting | DIN Rail |
| Illumination | None |
| Encapsulation | Box |
| RoHS Status | Non-compliant |
| Approvals | CCC, CE, CSA, EAC, UL489 |
| Product Status | Active |
The 3VA62 series employs electronic trip units; the LSI designation indicates independently adjustable Long-time, Short-time, and Instantaneous protection functions. The lever actuator provides manual operation and visible status indication at the device front.
Selection Trade-offs
- VDE certification absence vs. CCC/CE/CSA/EAC/UL489 coverage: The seed unit omits VDE approval present on the -0AA0 variant. Regions requiring VDE-marked equipment should evaluate the alternate.
- Box packaging vs. bulk: The seed ships as a single boxed unit. The -2AA0 and -0AA0 variants in bulk packaging may suit higher-volume panel builds where individual unit packaging adds no value.
- 3-pole vs. 4-pole topology: The seed is a 3-pole device. The 3VA6225-5HN41-2AA0 and 3VA6225-5HN41-0AA0 variants offer 4-pole construction for four-wire systems, at the cost of additional panel space.
- Trip function granularity: The -HM31 and -HL31 variants (ETU3-LIG and ETU3-LI respectively) reduce the protection envelope by removing the Short-time or Short-time plus Instantaneous functions. Applications requiring coordination with downstream devices should confirm the full LSI feature set is necessary.
Catalog Comparison
| MPN | Poles | Package | Approval | Series |
|---|---|---|---|---|
| 3VA6225-5HN31-2AA0 | 3 | Box | CCC, CE, CSA, EAC, UL489 | — |
| 3VA6225-5HN31-0AA0 | 3 | Box | CCC, CE, CSA, EAC, UL489, VDE | — |
| 3VA6225-5HN36-2AA0 | 3 | Bulk | CE, CSA, UL | 3VA6 |
| 3VA6225-5HN36-0AA0 | 3 | Bulk | CE, CSA, UL | 3VA6 |
| 3VA6225-5HN32-0AA0 | 3 | Bulk | CE, CSA, UL | 3VA6 |
| 3VA6225-5HN41-2AA0 | 4 | Box | CCC, CE, CSA, EAC, UL489 | — |
| 3VA6225-5HN41-0AA0 | 4 | Box | CCC, CE, CSA, EAC, UL489, VDE | — |
| 3VA6225-5HM31-2AA0 | 3 | Box | CCC, CE, CSA, EAC, UL489 | — |
| 3VA6225-5HL31-2AA0 | 3 | Box | CCC, CE, CSA, EAC, UL489 | — |
All listed parts share: 250 A rating, 35 kA breaking capacity, ETU3 electronic trip, lever actuator, DIN rail mounting, and non-compliant RoHS status.
Why 3VA6225-5HN31-0AA0 is similar — identical 3-pole, 250 A, ETU3-LSI construction in box packaging; the sole variance is the addition of VDE to its approval agency listing.
Why 3VA6225-5HN41-2AA0 is similar — matches the seed on package type, breaking capacity, and trip function family but extends to 4-pole configuration for four-wire circuit coverage.
FAQ
What does the ETU3-LSI trip function provide on 3VA6225-5HN31-2AA0? The LSI designation indicates an electronic trip unit with independently adjustable Long-time (overload), Short-time (short-delay short-circuit), and Instantaneous (high-fault) protection bands.
Can 3VA6225-5HN31-2AA0 be installed on a standard DIN rail? Yes — the device uses DIN rail mounting. Verify enclosure space and terminal accessibility for the 3-pole width.
How does the breaking capacity of 35 kA affect branch coordination? The 35 kA rating defines the maximum fault level the breaker can interrupt safely. Coordination with upstream protective devices requires evaluating the available short-circuit current at the installation point against this rating.