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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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AudioQuest PowerQuest 2 6-Outlet Surge ProtectorAudioQuest PowerQuest 2 6-Outlet Surge Protector $199.95 Panamax Mr4300 Power Conditioner & Surge ProtectorPanamax Mr4300 Power Conditioner & Surge Protector $349.95
Panamax Md2 2 Outlet Direct Plug In Surge Protector. U.S. Authorized DealerPanamax Md2 2 Outlet Direct Plug In Surge Protector. U.S. Authorized Dealer $54.95 Power Strip Outlets Plugs Surge Protection Pump Socket With Usb Extension CablesPower Strip Outlets Plugs Surge Protection Pump Socket With Usb Extension Cables $36.54 to
Tripplite Isobar8ultra 8 Outlet Surge Protection (isobar-8-ultra)Tripplite Isobar8ultra 8 Outlet Surge Protection (isobar-8-ultra) $79.34 Tripplite Isobar4ultra 4 Outlet Surge Suppresor (isobar-4-ultra)Tripplite Isobar4ultra 4 Outlet Surge Suppresor (isobar-4-ultra) $63.80
Belkin Be106000-06r Surge Suppressor 6 Output Connector[s] (be10600006r)Belkin Be106000-06r Surge Suppressor 6 Output Connector[s] (be10600006r) $22.72 Panamax M8-Av Home Theater Power Management Surge protect. Us Authorized DealerPanamax M8-Av Home Theater Power Management Surge protect. Us Authorized Dealer $159.00
Monster Cable Power and Charging Station 4 Outlet Surge Protector w/ 4 Usb PortMonster Cable Power and Charging Station 4 Outlet Surge Protector w/ 4 Usb Port $34.95 Tripp Lite Isobar Surge Protector Metal Rj11 4 Outlet 6' Cord 3330 JoulesTripp Lite Isobar Surge Protector Metal Rj11 4 Outlet 6' Cord 3330 Joules $73.22
Furman Pst-2+6 8-Outlet 15 Amp Power Conditioner Surge Protector Noise FilterFurman Pst-2+6 8-Outlet 15 Amp Power Conditioner Surge Protector Noise Filter $69.00 2-pack Surge Protector with 8 Outlets & 2 Usb Charging Ports , 6ft Cord2-pack Surge Protector with 8 Outlets & 2 Usb Charging Ports , 6ft Cord $46.73
Panamax Mr4000 Home Theater Power Management. Authorized Dealer!Panamax Mr4000 Home Theater Power Management. Authorized Dealer! $239.00 2 Pcs 6-Outlet Surge Protector Power Strip 201J Grounded w/ 2Ft Heavy Duty Cord2 Pcs 6-Outlet Surge Protector Power Strip 201J Grounded w/ 2Ft Heavy Duty Cord $30.27
Cruise Ship Accessories, Power Strip With Usb Outlets - Non Surge ProtectionCruise Ship Accessories, Power Strip With Usb Outlets - Non Surge Protection $25.97 Furman Pst-6 6-outlet Power Strip/Conditioner and Surge Protector ProaudiostarFurman Pst-6 6-outlet Power Strip/Conditioner and Surge Protector Proaudiostar $94.00
AudioQuest PowerQuest 3 Power Filter - 8 OutletsAudioQuest PowerQuest 3 Power Filter - 8 Outlets $299.95 Emerson Power Accessories 6 Outlet Surge Protector with Video Protection-Av3619Emerson Power Accessories 6 Outlet Surge Protector with Video Protection-Av3619 $12.99
Tripplite Isobar2-6 Tripp Lite Isobar 2 - Surge Suppressor [ External ] - 2Tripplite Isobar2-6 Tripp Lite Isobar 2 - Surge Suppressor [ External ] - 2 $45.65 Panamax Md2 2-Outlet Surge Suppressor with Led Diagnostic LightsPanamax Md2 2-Outlet Surge Suppressor with Led Diagnostic Lights $54.00
Belkin Surgemaster Office 8-outlets Surge Suppressor - 8 - 3550 JBelkin Surgemaster Office 8-outlets Surge Suppressor - 8 - 3550 J $31.81 American Power Conversionapc Per7t 7 Outlet W/tel 120vAmerican Power Conversionapc Per7t 7 Outlet W/tel 120v $33.78
$199.99 Panamax Pm8-Av 8 Outlet Cable-Sat-Telephone. U.S. Authorized DealerPanamax Pm8-Av 8 Outlet Cable-Sat-Telephone. U.S. Authorized Dealer $109.00
Tripp Lite Isobar Surge Protector Metal 6 Outlet 6' Cord 3330 JoulesTripp Lite Isobar Surge Protector Metal 6 Outlet 6' Cord 3330 Joules $69.81 Belkin Home/office 6-outlets Surge Suppressor - Receptacles: 6 - 555jBelkin Home/office 6-outlets Surge Suppressor - Receptacles: 6 - 555j $21.82
Furman Ss-6B Pro W/ Evs 6 Outlet Ac Surge Power Strip ConditioningFurman Ss-6B Pro W/ Evs 6 Outlet Ac Surge Power Strip Conditioning $79.00 AudioQuest - PowerQuest 2 Power StripAudioQuest - PowerQuest 2 Power Strip $199.95
New Panamax 8-Outlet Max M8-Ex Surge Protector with Circuitry ProtectionNew Panamax 8-Outlet Max M8-Ex Surge Protector with Circuitry Protection $79.95 Audioquest PowerQuest 2 6 Outlet Surge Protector Power ConditionerAudioquest PowerQuest 2 6 Outlet Surge Protector Power Conditioner $199.95
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 $63.00 Panamax Mb1500 Uninterruptible Power Supply Surge Protector Us Authorized DealerPanamax Mb1500 Uninterruptible Power Supply Surge Protector Us Authorized Dealer $1,559.00
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Prices current as of last update, 07/04/20 9:20pm.

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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