Whole house surge protector: This device is installed in a home's electric panel by an electrician and offers downstream protection of all electronics in a home. It costs more and requires professional labor, but over time, may offer more resilient, cost-effective protection
Whole-house systems should be rated to stop a 40,000-amp surge, at minimum. Features to look for include thermal fuses, and lights or alarms that indicate when a device has taken a hit. Protection for an average house with 200-amp service will run about $500—including a couple of hours of an electrician's labour.
A surge protector is designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or shorting to ground any unwanted voltages above a safe threshold. In normal household and office wiring, the standard voltage is 120 volts. If the voltage.
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