Siemens 3VA5145-5ED16-1AA0 DIN Rail Mounted Circuit Breaker
SENTRON 3VA51 Series Single-Pole 45 A Thermal-Magnetic Breaker
The 3VA5145-5ED16-1AA0 is a SENTRON 3VA51 series single-pole DIN rail mounted molded case circuit breaker rated 45 A, 35 kA at 480Y/277 V. It uses a lever actuator with box encapsulation and carries CCC, CE, UL489, and VDE certifications. The FTFM designation indicates a fixed thermal-magnetic trip unit; the trailing "NAV" code marks a neutral lug-less configuration. Mounting is snap-on DIN rail with no illumination.
Connection and Terminal Options
The MPN suffix "-1AA0" encodes terminal and handle variants within the 3VA5145 family. The "AA" block denotes line-side box lug and load-side sliding bar; the "0" trailing position specifies no additional handle interlock. Suffix "-0AA0" versions (e.g., 3VA5145-5ED16-0AA0) replace the box lug with an aluminum C-shaped compression lug on the line side. Buyers must confirm terminal type against their panel termination practice before procurement.
| Characteristic | Detail |
|---|---|
| Current Rating | 45 A |
| Breaking Capacity | 35 kA |
| Poles | 1 |
| Mounting | DIN Rail (35 mm) |
| Actuator | Lever |
| Encapsulation | Box |
| Series | SENTRON 3VA51 |
Approval Region and Standards Scope
Approval agency coverage varies by suffix:
| MPN | CCC | CE | CSA | UL489 | VDE | EAC | RoHS |
|---|---|---|---|---|---|---|---|
| 3VA5145-5ED16-1AA0 | ✓ | ✓ | — | ✓ | ✓ | — | not specified |
| 3VA5145-5ED12-1AA0 | ✓ | — | — | ✓ | — | — | not specified |
| 3VA5145-5ED11-1AA0 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | non-compliant |
The "-1AA0" seed includes CE and VDE, making it suitable for EU and Chinese market projects requiring those marks. Projects limited to North American deployment may accept the "-12" variant (CCC + UL489 only). The "-11" series adds CSA and EAC but drops RoHS compliance.
Engineering Verification Checklist
- Confirm load ampacity does not exceed 45 A continuous at operating ambient
- Verify short-circuit rating of upstream protective device against 35 kA interrupt rating
- Check DIN rail clearance: 3VA51 height is approximately 90 mm; adjacent devices must not obstruct lever travel
- Validate terminal type matches branch conductor material (Cu/Al) and torque specification
- Confirm applicable standard version for UL489 (4th edition or later) on end-product certification
- For EU installations: verify CE and VDE declarations cover the specific product date code
- For Chinese CCC projects: confirm CCC certificate scope includes single-pole 45 A 480Y/277 V
- Compare "-1AA0" vs "-0AA0" terminal options if replacement box lugs are required on site
- Verify neutral bar or sliding bar compatible with load-side arrangement for multi-pole ganging