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Surge Protection, Filtration

A surge protector is an appliance designed to protect electrical devices from power surges and voltage spikes. Surge protectors attempt to regulate the voltage supplied to an electric device by either blocking or shorting to ground voltage above a safe threshold. more...

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Surge protectors can be built with one or more of the following electronic components:

  • A fuse burns out or a circuit breaker trips when excessive power is being consumed and fed to a device. These can protect both from surges caused by the device itself and from external surges that last long enough.
  • An iron poor transformer can transmit AC power similar to a normal iron core transformer (although less efficiently), but will be unable to transmit sudden surges that saturate the small iron core.
  • A MOV is a small device that will short out when presented with a sufficiently high voltage, hopefully passing the surge to ground through the MOV rather than through the protected device. Unfortunately, these devices tend to self destruct (and are therefore one-shot devices) with sufficiently strong surges. Many cheap surge protectors only have MOV's, and probably will not survive even a single lightning strike.
  • A zener diode is a small diode designed to protect against normal spikes in a circuit, especially motor controller circuits. These are sometimes paired as a transient voltage suppression diode.
  • A gas discharge tube is used much like a MOV, except that it relies on a trapped gas to become ionized to pass the voltage. This has the advantage of being able to pass much more power without self destructing, but with the disadvantage of reacting to the high voltage more slowly.
  • An Uninterruptible power supply (in addition to other surge protection devices listed above) typically passes external power past the unit's battery, which will absorb spikes much like a capacitor in parallel acts as a low pass filter. (This also keeps the battery charged, and in the event of a failure, the battery can continue to supply power without any interruption otherwise needed to switch it in.) Typically these are the best ones, but are also more expensive.

Read more at Wikipedia.org


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1 Outlet Surge Protector 540 Joules with Emi/Rfi filter - Part #: C20091 Outlet Surge Protector 540 Joules with Emi/Rfi filter - Part #: C2009 $7.99 Eaton Nsb Chspfmkit Surge Protection Devices (Spd) Accessories EaEaton Nsb Chspfmkit Surge Protection Devices (Spd) Accessories Ea $42.29
CyberPower Cps1215Rms Rackmount Surge Protector, 120V/15A, 12 Outlets, 15' CableCyberPower Cps1215Rms Rackmount Surge Protector, 120V/15A, 12 Outlets, 15' Cable $52.00 Eaton Chsp22Pack Whole House Surge Protector Chspt2Ultra & Chspcable New In BoxEaton Chsp22Pack Whole House Surge Protector Chspt2Ultra & Chspcable New In Box $125.00
Monster Power Gold 600 w/ Usb Surge Protector - 6 Outlets w/ 2 Usb - 1080 JoulesMonster Power Gold 600 w/ Usb Surge Protector - 6 Outlets w/ 2 Usb - 1080 Joules $15.99 Eaton Complete Home Surge Trap Cable Protector 20,000 Amp - New In BoxEaton Complete Home Surge Trap Cable Protector 20,000 Amp - New In Box $30.00
CyberPower Premier Home Series 12-Outlet Surge Protect 6' Braided Cord Usb CoaxCyberPower Premier Home Series 12-Outlet Surge Protect 6' Braided Cord Usb Coax $49.97 Hubbell Hbl11W100C Surge Protection Device 3ph 100ka 600v-acHubbell Hbl11W100C Surge Protection Device 3ph 100ka 600v-ac $1,405.41
Monster Power Reference Center Surge Protector Hts 5000Monster Power Reference Center Surge Protector Hts 5000 $159.99 Furman Power Pst-8 15 Amp 8 Outlet Surge Suppressor Strip w Smp LiFt and EvsFurman Power Pst-8 15 Amp 8 Outlet Surge Suppressor Strip w Smp LiFt and Evs $98.40
Eaton Nnb Chspcable Surge Protection Devices (Spds) Coax Cable Protection 145V EEaton Nnb Chspcable Surge Protection Devices (Spds) Coax Cable Protection 145V E $42.33 8 Export Heavy Duty Power Surge Protection Plug 6Ft Power Cord Etl Certified8 Export Heavy Duty Power Surge Protection Plug 6Ft Power Cord Etl Certified $35.59
Upgrade Surge Protection Jumper Cable Clamps for Milwaukee M18 18V BatteryUpgrade Surge Protection Jumper Cable Clamps for Milwaukee M18 18V Battery $56.00 Utilitech 6 Ft Usb Charger With Surge ProtectionUtilitech 6 Ft Usb Charger With Surge Protection $21.00
Surge Protector Power Strip with Usb,Ethernet,Cable,Teleph one,Coaxial ProtectionSurge Protector Power Strip with Usb,Ethernet,Cable,Teleph one,Coaxial Protection $34.99 Eaton Chspcable Home Surge Protection.Eaton Chspcable Home Surge Protection. $89.00
Edco Cx06-Bncy Surge Protection Suppressor Arrestor Cable Line Surge - NewEdco Cx06-Bncy Surge Protection Suppressor Arrestor Cable Line Surge - New $19.50 New ListingPanamax M5300Pm 11 Outlet Clean Power Level 4New ListingPanamax M5300Pm 11 Outlet Clean Power Level 4 $175.00
Surge Protector Maxivolt Mvc Icp-301 240Vac 1 or 2 pole 2 wire New (T)Surge Protector Maxivolt Mvc Icp-301 240Vac 1 or 2 pole 2 wire New (T) $55.00 Monster Power Essentials White Surge Protector for Hdtv, Game, Office - 8 OutletMonster Power Essentials White Surge Protector for Hdtv, Game, Office - 8 Outlet $15.99
New Apc C2 Wall Mount Power Filter Surge Protector 2-Outlet 12A 1890J 2ft CordNew Apc C2 Wall Mount Power Filter Surge Protector 2-Outlet 12A 1890J 2ft Cord $29.99 New Maxivolt Mvc Icp-120 Plus Surge Protective Device 120V 1 pole 2 Wire (Jj)New Maxivolt Mvc Icp-120 Plus Surge Protective Device 120V 1 pole 2 Wire (Jj) $55.00
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Philips 6-Outlet Surge Protector Tap, 900 Joules, (2 Pack)Philips 6-Outlet Surge Protector Tap, 900 Joules, (2 Pack) $14.95 CyberPower 7-outlet Surge Protector with 6 Ft Power CordCyberPower 7-outlet Surge Protector with 6 Ft Power Cord $12.93
Eaton Chspcable Surge Protection For Coax Cables Modem Protection NewEaton Chspcable Surge Protection For Coax Cables Modem Protection New $23.56 Commercial Electric 3ft 4 Outlet Surge Protector OnlyCommercial Electric 3ft 4 Outlet Surge Protector Only $14.95
Flat Plug Power Strip with 6 Outlet Long Extension Cord Usb Port Surge ProtectorFlat Plug Power Strip with 6 Outlet Long Extension Cord Usb Port Surge Protector $22.99 to New Eaton Chspcable Complete Home Surge Protection for (2) Coax Cable Lines DslNew Eaton Chspcable Complete Home Surge Protection for (2) Coax Cable Lines Dsl $43.95
Leviton 47605-Acs Structured Media J-Box Surge Outlet Protective Kit 148Leviton 47605-Acs Structured Media J-Box Surge Outlet Protective Kit 148 $27.97 Eaton Surge Protection For Coax Cables Electronics Bi-Directional Led ChspcableEaton Surge Protection For Coax Cables Electronics Bi-Directional Led Chspcable $45.00
Belkin Be112234-10 Surge Protector Surge Suppressor-NewBelkin Be112234-10 Surge Protector Surge Suppressor-New $24.97 Tripp Lite Eco-Surge Tlp76Msg 7-Outlets Surge Suppressor - Receptacles: 7 x NemaTripp Lite Eco-Surge Tlp76Msg 7-Outlets Surge Suppressor - Receptacles: 7 x Nema $29.99
Tv In Line Coaxial Surge Protector Protection Video Electronics lightning surgeTv In Line Coaxial Surge Protector Protection Video Electronics lightning surge $9.65 Rainbird Rain Bird Msp-1 Maxi Surge Protection Pipe for Communication WireRainbird Rain Bird Msp-1 Maxi Surge Protection Pipe for Communication Wire $444.11
Apc Surge Arrest Model Pv - Cable/ Video protectionApc Surge Arrest Model Pv - Cable/ Video protection $3.49 Eaton Chspt2Micro Surge protector, 120/240V, New Box WrinkledEaton Chspt2Micro Surge protector, 120/240V, New Box Wrinkled $36.56
Eaton Chspt2Micro Surge protector, 120/240V, 36kA Max, 5Ka inEaton Chspt2Micro Surge protector, 120/240V, 36kA Max, 5Ka in $52.95 Surge Protector New - 6-Outlet Prime Wire & Cable - extra long 8-ft cordSurge Protector New - 6-Outlet Prime Wire & Cable - extra long 8-ft cord $24.95
Power Strip Surge Protector with 8 Outlet Usb C Ultra Thin Flat PlugPower Strip Surge Protector with 8 Outlet Usb C Ultra Thin Flat Plug $26.99 Ditek Surge Protection Kool Guard 2 HvacDitek Surge Protection Kool Guard 2 Hvac $125.00
Eaton Surge Protection For Coax Cables Electronics Modem Protection ChspcableEaton Surge Protection For Coax Cables Electronics Modem Protection Chspcable $24.99 Furman Ac-215A 2-Outlet Power Conditioner/Surge Protector 10A voltage protectionFurman Ac-215A 2-Outlet Power Conditioner/Surge Protector 10A voltage protection $94.50
Brand New Surge Protector for Cable Tv Satellite In-Line Coaxial LightningBrand New Surge Protector for Cable Tv Satellite In-Line Coaxial Lightning $9.65 Belkin 12 Outlet Surge Protector w/10' Cord 4156J of Protection for Home TheaterBelkin 12 Outlet Surge Protector w/10' Cord 4156J of Protection for Home Theater $17.99
Panamax Mfp-300 Surge Protector / Power Filter with Cable/Sat Signal ProtectionPanamax Mfp-300 Surge Protector / Power Filter with Cable/Sat Signal Protection Surge Protector Power Strip Tower Ultra Thin Plug 10 Ft Extension Cord 8 OutletsSurge Protector Power Strip Tower Ultra Thin Plug 10 Ft Extension Cord 8 Outlets $26.99
New For Pepperl+Fuchs Kcd2-Sr-Ex2 Surge Protection Barrier Safety BarrierNew For Pepperl+Fuchs Kcd2-Sr-Ex2 Surge Protection Barrier Safety Barrier $67.29 Power Strip with Surge Protection Usb C 6 Outlet Thin Plug 5 Ft Cord for DesktopPower Strip with Surge Protection Usb C 6 Outlet Thin Plug 5 Ft Cord for Desktop $22.99
Monster Power Ht700 Home Theatre PowerCenter Surge Protector OutletMonster Power Ht700 Home Theatre PowerCenter Surge Protector Outlet $39.99 6-Pack Prime Pb503105 Rotating 6-Outlets 120V/15A/60Hz/1800W/2160J Surge Protect6-Pack Prime Pb503105 Rotating 6-Outlets 120V/15A/60Hz/1800W/2160J Surge Protect $99.00
Tripp Lite | Super7B | Protect It 7 Outlets Surge Protector 7-ft CordTripp Lite | Super7B | Protect It 7 Outlets Surge Protector 7-ft Cord $19.99 Monster FlatScreen PowerProtect Avfl 200 Surge Protector 2 Outlets - 1100 JoulesMonster FlatScreen PowerProtect Avfl 200 Surge Protector 2 Outlets - 1100 Joules $8.99
CyberPower 12 Outlet Surge Protector 6 ft Braided Cord, Usb, CoaxCyberPower 12 Outlet Surge Protector 6 ft Braided Cord, Usb, Coax $24.99 Furman Pst-6 6 Outlet 15 Amp Pro or Home Surge Strip Ac Power ConditionerFurman Pst-6 6 Outlet 15 Amp Pro or Home Surge Strip Ac Power Conditioner $58.95
1225J Surge Protector 6 Outlet Extender With 4 Usb Charger Port Wall Adapter Tap1225J Surge Protector 6 Outlet Extender With 4 Usb Charger Port Wall Adapter Tap $16.99 to Panamax M8-Av-Pro Hi-Definition 8 Outlet Surge Protector w/ Coax/Sat ProtectionPanamax M8-Av-Pro Hi-Definition 8 Outlet Surge Protector w/ Coax/Sat Protection $119.95
Tripp Lite Isobar Surge Protector Metal 230V 4 Outlet 1.8M Cord 330 JoulesTripp Lite Isobar Surge Protector Metal 230V 4 Outlet 1.8M Cord 330 Joules $40.33
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Prices current as of last update, 01/12/25 2:50pm.

See also...
Monster Power Centers, Surge Protection, Filtration, Accessories & Cables
Other Surge Protection, Surge Protection, Filtration, Accessories & Cables
Power Strips, Surge Protection, Filtration, Accessories & Cables

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