Product Introduction

The TZG40-T1T2 is a high-performance surge protective device that integrates both Type 1 (T1) and Type 2 (T2) protection into a single compact unit, delivering comprehensive defense against direct lightning strikes and induced surge voltages. Designed for installation at the main distribution board, it safely dissipates high-energy lightning impulse currents (Iimp) while effectively limiting transient overvoltages, ensuring seamless protection across multiple threat levels. This model is specifically configured for DC power systems, with a rated voltage of 1000V/1200V DC and a 3-pole design, making it ideal for photovoltaic (PV) systems, energy storage installations, and other DC applications. Compliant with IEC/EN 61643-11 standards, the TZG40-T1T2 offers reliable, space-saving protection for residential, commercial, and industrial DC power distribution. Customization options, including alternative voltage or current ratings and RS485 communication functionality, are available upon request.

Product Data Sheet

Model: TZG40-T1T2
Type: T1+T2 (Integrated Type 1 and Type 2)
Standard: IEC/EN 61643-11
Rated Voltage: 1000V / 1200V DC
Poles: 3P
Lightning Impulse Current (Iimp): 7kA (10/350μs)
Nominal Discharge Current (In): 20kA
Maximum Discharge Current (Imax): 50kA
Application: Main distribution board (DC systems such as PV, energy storage)
Customization: Available for special voltage/current ratings, RS485 communication, and other requirements upon request