QA

Quick Answer: How Do Surge Protectors Work

How Does a Surge Protector Work? A typical surge protector passes the electrical current along the outlet to number of the devices plugged into the power strip. If the voltage happens to rise above the acceptable level, the protector will divert the extra electricity into the outlets grounding wire.

Do surge protectors really do anything?

Surge protectors offer protection in units called joules. Generally, the more joules the better, as this means the device can handle one large surge, or multiple smaller surges, before your gear is in danger. Over time, the parts inside the protector wear down, reducing its effectiveness.

How does a power surge protector work?

A surge protector contains metal oxide varistor, or MOV, which diverts any extra voltage to ensure devices receive a consistent power level. When the MOV detects high voltage levels, it reduces resistance. If voltage levels are too low, it increases resistance. It will kick in automatically to redirect excess voltage.

How do I know if my surge protector is working?

To determine if the internal surge protection components are working normally, look at the “Protection Present” or “Protected” LED on the front of the surge protector’s casing. If it is illuminated green, your surge protector is ready to go and prepared to protect you when the next power surge occurs.

Do power strip surge protectors work?

The short answer is NO. At least not any surge protector that you can buy for the inside of your house. Even a UPS (Uninterruptible Power Supply) with surge protection will not be able to handle a lighting strike that is close by.

Should a TV be plugged into a surge protector?

Do you have your PC, television, or other expensive electronics plugged directly into a power outlet? You shouldn’t. You should plug your gadgets into a surge protector, which isn’t necessarily the same thing as a power strip.

Should I turn off my surge protector at night?

Turning off the power strip has no negatives / no positives. Turning off your devices has both positive and negative impacts obviously even the small amount of electricity used in sleep mode has a cost.

What should you not plug into a surge protector?

Avoid starting an electrical fire by never plugging these items into a power strip. Large Kitchen Appliances (Refrigerator, Dishwasher, etc.) These appliances are so high-powered that they’ll easily overload a poor, little power strip. Small Kitchen Appliances. Hair Styling Tools. Extension Cords and Other Power Strips.

Do surge protectors work without ground?

Grounding is a critical element required for proper surge protection. In regard to the question about whether surge protectors work on ungrounded outlets, the answer is “no.” Surge protection equipment typically uses components called metal oxide varistors (MOVs) to divert excess current into the ground line.

Are surge protectors necessary?

Surge Protectors Are Necessary For Some Devices They’ll usually survive a power surge anyway. A sudden voltage surge can damage these delicate parts. That’s why a surge protector is a great choice: they can prevent damage from high voltage occurring and the component is surprisingly inexpensive.

Does a surge protector only work once?

There’s no exact lifespan we can give you, and it varies from area to area — it depends how many surges occur in your area as well as how many joules your protector can absorb. Many people recommend replacing a surge protector every two years or so, but any recommendation like this one can only be a rule of thumb.

Do surge protectors pop?

Most surge suppressors are rated for 15 amps worth of load. So, if more than 15 amps of load is being pulled through, the interrupter will pop. Over time with repeated tripping, it’s capacity will be reduced to the point of the suppressor not being able to handle much of a load at all.

What does a red light on a surge protector mean?

The red protection light indicates that your surge protector is providing surge protection for your equipment. If the red light is out, it means that the surge protector has been damaged by a severe surge and a new one should be purchased.

What’s the difference between a surge protector and a power strip?

A power strip gives you the ability to plug multiple devices into a single wall outlet. A surge protector is a type of power strip which is specifically designed to withstand a power surge and keep your electronics safe.

Are surge protectors safer than extension cords?

Surge protectors are best for surges! When it comes to plugging your appliances into power strips, a surge protector is safer than an extension cord. Surges can occur for any number of reasons, including lightning strikes and faulty wiring.

Is it OK to use extension cord with surge protector?

Can You Plug a Surge Protector Into an Extension Cord? On paper, yes, you can. The biggest thing is making sure the extension cord can handle the same amount of load as the surge protector (or more).

Should you put a surge protector on a refrigerator?

We do not recommend connecting a refrigerator or freezer to a surge protector. The reason we do not recommend this is explained below: The compressor is sensitive to temperature and current overloads and will shut itself down with a power surge.

What appliances need surge protectors?

But bigger or more important items, as well as appliances that require constant power, such as computers, printers, televisions, and refrigerators, should all use surge protectors. Any device that you don’t want to lose in the event of a power surge, or that would be expensive to replace, should be protected.

Can you mount surge protectors to the wall?

To ensure neatness and to avoid cable disconnections, Belkin Surge Protectors are designed in a way that mounting is possible. Belkin Surge Protectors can be mounted to walls and baseboards. Use the two mounting holes on the back of the Surge Protectors to secure it to your wall or baseboard.