Type 1 AC Surge Protective Device TRS-A25
Main Features
- Maximum discharge current (8/20μs) Iimp: 25kA
- Network Systems: TN-S, TT, TN-C-S
- Mode of Protection: L-PE, N-PE
- IEC/EN Category: Class I / Type 1
- Protective Elements: High Energy MOV
- Housing: Monobloc design
- Application: Main Distribution Board
- Compliance: EN 61643-11:2012, IEC 61643-11:2011/T1
The TRS-A Series is a Type 1 AC Surge Protective Device designed for service-entrance and main distribution boards. Using graphite-gap discharge technology, it provides high-energy lightning current handling capability and reliable protection against direct lightning strikes and severe transient overvoltages.
With a robust discharge structure, fast response, and stable performance, the TRS-A Series is suitable for residential, commercial, and industrial low-voltage power systems located in lightning-prone or surge-intensive environments.
The TRS-A25 provides 25 kA (10/350 μs) lightning impulse current capability, making it a versatile mid-range Type 1 SPD suitable for a wide range of AC distribution systems. It offers enhanced surge handling for environments with higher lightning exposure or more sensitive power infrastructure.
Its reinforced discharge capability and stable performance make it an ideal choice for commercial buildings, industrial workshops, and locations requiring stronger lightning current protection than typical residential installations.
Applications
Commercial power distribution boards
Industrial facilities with sensitive electronics
Buildings with moderate-to-high lightning activity
Supplementary protection for main switchboards
| Model | TRS-A15 | TRS-A25 | TRS-A50 |
| Nominal volatge(Un) | 230 V AC | ||
| Maximum operating voltage(Uc) | 275 V AC | ||
| Lightning impulse current (10/350 μs)(Iimp) | 15 kA | 25 kA | 50 kA |
| Voltage protection level(Up) | ≤ 2,0 kV | ≤ 2,2 kV | ≤ 2,5 kV |
| Insulation resistance group | > 100 mΩ | ||
| Response time | <100ns | ||
| Cross-section of connected conductors solid (min/max) | 16 mm2 / 35 mm2 | ||
| Cross-section of connected conductors stranded (min/max) | 16 mm2 / 35 mm2 | ||
| Fault indication | — | ||
| Degree of protection | IP20 | ||
| Range of operating temperatures (min/max) | -40℃~+70℃ | ||
| Humidity range | 5%~95% | ||
| Mounting | DIN rail 35 mm | ||
| According to standard | EN 61643-11:2012, IEC 61643-11:2011 / T1 | ||
| Remarks | Other Uc can be customized.(420V AC, 385V AC, 320V AC, etc.) | ||
Related Products
| Uocstc | 1000v, 1250v |
|---|---|
| Ucpv | 1200v, 1500 |
| Iimp | 5kA, 7kA |
| Z0 | 50 Ohm |
|---|---|
| IL | ≤0.3dB |
| Freq. | DC-2.5GHz |
| VSWR | <1.2 |
| Uocstc | 110v, 24v, 48v, 75v |
|---|---|
| Ucpv | 180v, 36v, 65v, 80v |
