Type 1 AC Surge Protective Device TRS-A50
Main Features
- Maximum discharge current (8/20μs) Iimp: 50kA
- 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-A50 is the high-performance model of the TRS-A SPD series, offering 50 kA (10/350 μs) impulse current capability for demanding electrical environments. It is designed for buildings equipped with external lightning protection systems (LPS) or installations exposed to frequent or severe lightning events.
Its high discharge capacity allows it to withstand strong direct lightning currents, making it suitable for large buildings, industrial plants, and critical electrical systems requiring maximum surge protection.
Applications
Buildings with LPS (external lightning rods)
Industrial plants and heavy-duty power systems
High lightning density regions
Main service entrance panels for large facilities
| 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 |
