It is an over voltage protection which protects and extends the service-life of connected electrical equipment (TV, Telephone, etc) During thunder lighting and other temporary over voltages

It functions if connected to both grounded and ungrounded outlets.

It is tested and approved for electrical safety and radio interference.

Supply Voltage: 240V/AC 50Hz
Max. Current: 10A or 2400W
Max. Allowable Voltage: 275V/AC
Peak Clamp Voltage: 710@100AMPS
Peak Surge Current: 12000AMPS@8x20us
Max. Energy Dissipation: 300J@10x1000us
Response Time: <25nS