lightning Surge Protection Protector Arrester SPD 1P 2P 3P 4P
AC SPD stands for "Alternating Current Surge Protective Device." It is a surge protector to protect electronic devices from voltage surges on an AC (alternating current) power line. These voltage surges can be caused by lightning strikes, power outages, or other electrical events that cause temporary increases in voltage on the power line.

AC SPDs work by diverting excess voltage from electronic devices into a grounding wire. This helps to protect the devices from damage caused by the surge. AC SPDs are typically installed in homes, businesses, and other buildings to protect electronic devices such as computers, televisions, and appliances from voltage surges.

Different types of AC SPDs are available, including whole-house surge protectors, installed at the main electrical panel to protect all building devices. Plug-in surge protectors plugged into a wall outlet and covered only the instruments.

It is important to note that AC SPDs are not the same as power strips, which provide additional outlets for devices to be plugged into. Power strips do not provide any protection against voltage surges.