Type 2 AC Surge Protective Device TRS7-B120
Main Features
- Nominal discharge current (8/20μs) In: 80kA
- Maximum discharge current (8/20μs) Imax: 120kA
- Network Systems: TN-S, TT, TN-C-S
- Mode of Protection: L-PE, N-PE
- IEC/EN Category: Class II / Type 2
- Protective Elements: High Energy MOV
- Housing: Pluggable design
- Application: Sub-Distribution Board
- Compliance: EN 61643-11:2012, IEC 61643-11:2011/T2
The TRS7-B120 is a high-performance Type 1 surge protective device(SPD) tailored for medium-to-heavy lightning environments where electrical systems must withstand powerful shock currents.
Its advanced arc-extinguishing design ensures efficient handling of high-energy surges at the service entrance, making it ideal for facilities where operational reliability is non-negotiable.
With enhanced insulation coordination and a carefully engineered spark-gap path, the TRS7-B120 offers stable protection across a broad range of grid conditions.
It reduces the impact of steep-front lightning impulses on downstream equipment, supporting long-term system durability and reducing maintenance costs.
Technicians benefit from fast visual diagnostics via the integrated status window, while optional remote signaling contacts enable centralized supervision.
Its rugged construction and DIN-rail mounting design make installation straightforward in both new and retrofitted power distribution systems.
Applications
Medium and large commercial buildings with lightning protection
Industrial automation networks requiring high surge immunity
Power distribution cabinets at facility entry points
Harsh environments with repetitive surge exposure
Projects needing strong, maintenance-friendly T1 surge protection
| Model | TRS7-B80 | TRS7-B100 | TRS7-B120 | TRS7-B150 |
| Nominal volatge (Un) | 380 V AC | |||
| Maximum operating voltage (Uc) | 385 V AC | |||
| Nominal discharge current (8/20μs) (In) | 40 kA | 60 kA | 80 kA | 100 kA |
| Maximum discharge current (8/20μs)( Imax) | 80 kA | 100 kA | 120 kA | 150 kA |
| Voltage protection level (Up) | ≤ 2,4 kV | ≤ 2,5 kV | ≤ 3,0 kV | ≤ 3,5 kV |
| Response time( ta) | < 25ns | |||
| 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 | red indication field | |||
| Remote indication | potential-free change-over contact | |||
| Remote indication contacts | 250 V / 0,5 A AC, 250 V / 0,1 A DC | |||
| Cross-section of remote indication conductors | 1,5 mm2 | |||
| 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 / T2 | |||
| Remarks | Other Uc can be customized.(420V AC, 275V 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 |
