The Normal Surge Protective Device(N)

is made by using Metal Oxide varistors (MOV's) and The Normal Surge Protective Device is a parallel device Surge Protective Device.

The Professional Surge Protective Device(PRO)

is made by using our patented Gate Control Arrestor (GCA) component and MOV’s technology we include which reduces the Let-through Voltage of the PRO Surge Protective Device is much lower(1/3)than other AC Surge Protective Devices on the market today. The PRO Surge Protective Device is a parallel device Surge Protective Device.

The Super Surge Protective Device(SP)

is also made by using our patented GCA (Gate Control Arrestor) component, but its Let-through Voltage is the lowest(50V) available on the market today.