Recently, it is a season of high thunderstorm and lightning. The unstable weather in the past day has brought many troubles to people's travel and also brought some safety risks to electricity. The products of SPD of Jiangsu Sfere Electric can effectively prevent and reduce the harm of lightning overvoltage to low voltage power supply equipment.

Surge protector, also known as lightning protector, is an electronic device that provides safety protection for various electronic equipment, instruments and communication lines.

When the electrical circuit or communication line suddenly generates peak current or voltage due to external interference, the surge protector can conduct shunt in a very short time, so as to avoid the damage of surge to other equipment in the circuit.

Applicable to AC 50/60HZ, rated voltage 220V/380V power supply system, to protect the surge affected by indirect lightning and direct lightning or other instantaneous overvoltage. Suitable for the requirements of surge protection in industrial field, tertiary industry and residential buildings.

Technical parameters

Product model selection

• Super high-rise buildings, large factories, data centers, airports, railway hubs, high-end hotels, large ports and other public buildings are recommended to install SDX DG42 for their low-voltage incoming cabinets; SDX DG53 is recommended for outdoor equipment on the roof; DG55 is recommended for floor distribution cabinet (box); SDX D57 is recommended for terminal box; It is recommended to install SDX D58 before equipment requiring key protection.

   

• Hotels, residential quarters and other buildings with more than 10 floors are high-rise buildings. It is recommended to install SDX DG42 for their low-voltage incoming cabinets; SDX DG53 for outdoor equipment on the roof; SDX DG55 for floor distribution cabinets (boxes); SDX D58 for terminal boxes.

   

• Small hotels and residential quarters with 6 floors are multi-storey buildings. It is recommended to install SDX DG53 for low-voltage incoming cabinet in the residential area; SDX D56 is recommended to be installed in the floor distribution cabinet (box); SDX D58 is recommended to be installed in the terminal box.

Quick selection of low voltage distribution system

Typical wiring