Overview

The HLS1 Series Surge Protection Device (SPD) is suitable for low-voltage power grids with AC 50/60 Hz and rated voltage of 400 V, which can protect the system from the impact of transient surge voltage caused by lightning strike or switching operation, limit instantaneous overvoltage and discharge surge current. 

It is designed in accordance with GB/T 18802.1-2011, IEC 61643-1/II test and GB/T 50057-94 Design Code for Protection of Structures Against Lightning.

Normal working conditions

Normal working conditions 

a) Altitude ≤ 2,000m.

b) Ambient air temperature: Normal range: -5°C – +40°C; limit range: -40°C~+70°C. 

c) Relative humidity: Between 30% and 90% at room temperature of 25°C. 

d) Frequency: The AC frequency of the power supply is between 48 Hz and 62 Hz. 

e) Voltage: The voltage continuously applied between SPD terminals shall not exceed its maximum continuous working voltage. 

Normal installation conditions 

a) The inclination angle with the vertical plane shall be less than 5°. 

b) The installation place shall have no significant shaking and impact vibration. 

c) The installation medium shall have no explosion risks and no enough gas or dust (including conductive dust) to corrode metals or destroy insulation. 

Normal storage and transportation conditions 

a) Temperature range: -40°C~+70°C.

b) Relative humidity (at +25°C) ≤ 90%. 

c) Handle with care during transportation to avoid violent collision.