Ethernet Surge Protectors – 7 Best Models Reviewed

Ethernet Surge Protectors

Just like Internet access, having Ethernet surge protectors for our home is a necessary evil these days.

Distant lightning may strike and send forth electrical surges along the power line. These electrical spikes are usually powerful enough to cause irreparable damage to not only your connected electronics but Internet routers and modems too.

Unbeknown to some people, network equipment can get fried and damaged during strong and damaging electrical current spikes. To safeguard your network equipment from getting ‘fried’ (plus unnecessary outages) by power surges, having a dedicated Ethernet surge protection device is no longer a want but a NEED!

Ethernet Surge Protector Network Diagram

If your current surge protector does not already come with such capability, it is highly recommended to get one that does.

My team scoured the Internet to locate some of the best dedicated Ethernet surge protectors and have written a comprehensive review for each of them below.

If you are in a hurry, you may want to check the editorial recommendation box below.

Editorial Top Pick

WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector If you are looking for value for money quality and great reviews, you should just get WatchfulEyE WTH-SG/RJ45-S. It is our best editorial pick among the other Ethernet surge protectors based purely on the many great reviews and Plug-and-Play (PnP) simplicity – no complicated setup needed. 😉

Not only is it compatible with up to 1000M Base-T Ethernet systems, but it also offers a 2-steps surge protection mode that releases and reduces the sudden intrusion of power surges in addition to providing a TVS Line to Line surge protection.

This WatchfulEyE Ethernet surge protector is super lightweight (5 grams) and is most suitable for direct in-Line plug in to all your network communication devices like Internet modem, routers and switches at home or in the office.

 

Few Features to Look for When Buying Ethernet Surge Protectors

Easy to Setup – Be sure to get one that is simple to set up if you are not technically savvy or are familiar with setting up network devices. Most of the RJ45 surge protectors we reviewed are easy to set up.

Supports 1000M (Gigabit) Base-T Ethernet Networks – Most network communication devices like Internet and wireless routers are running at Gigabit speed these days. Be sure to get one that is compatible with 1000 Base-T networks.

Strong Housing – If you are going for an outdoor Ethernet surge protector, it is highly recommended to get one with a robust casing so as to prevent attacks from insects or house pets. 🙂

Lightweight – If you need to travel with it on a frequent basis, be sure to get one that is light and easy to bring around.

Mountable – Sometimes it may make sense to mount the network surge protector if you are short of physical space or to place it near network devices that are already mounted on the wall.

Comparison Table of Ethernet Surge Protectors

Below is a comparison table listing the 7 top Ethernet surge protectors our team has reviewed in terms of quality and reliability.

Best 8 Editorial Picks
Brand|Model
Comes with Grounding Wire
Warranty
Weight
Dimensions
Our Reviews
WatchfulEyE WTH-SG/RJ45-E DIN-Rail Mounted Gigabit Ethernet PoE Surge ProtectorWatchfulEyE Ethernet PoE Surge Protector

No

5 years

12.9g

3.98 x 1.97 x 1.3 inches

Read Review
CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor ArresterCERRXIAN Outdoor Ethernet Surge Protector

No

N.A.

22g

6 x 3.5 x 1 inches

Read Review
APC Surge Protector for Ethernet Data Port ProtectNetAPC PNET1GB Surge Protector

Yes

Lifetime

119g

1.34 x 1.34 x 1.34 inches

Read Review
RiteAV - Outdoor Ethernet POE+ / RJ-45 Surge Protector (Shielded) for Thunder & Lightning ProtectionRiteAV - Outdoor Ethernet Surge Protector

Yes

N.A.

45.3g

6.4 x 3.8 x 0.5 inches

Read Review
Ethernet Surge Protector PoE+ Gigabit - Gas Discharge Tube for Full ProtectionTupavco TP302 Ethernet Surge Protector

Yes

N.A.

68g

3.4 x 1.4 x 2.3 inches

Read Review
Tripp Lite DTEL2 in-Line Surge ProtectorTripp Lite DTEL2 in-Line Surge Protector

Yes

Lifetime

43.5g

6 x 3 x 2 inches

Read Review
Ubiquiti ETH-SP-G2 Surge SuppressorUbiquiti ETH-SP-G2 Surge Suppressor

No

N.A.

80g

3.58 x 2.4 x 1.28 inches

Read Review

1WatchfulEyE Ethernet PoE Surge Protector

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WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector If you have isolated network or Internet communication devices located at different corners of the house or office, you may want to get a few pairs of these WatchfulEye Ethernet surge protectors.

These network surge protective devices may be what you need to avoid detrimental electrical spikes or over-voltage surges that could cause damages to your network/data communication devices like Internet and wireless routers, network switches – not to mention laptops or computers which are connected to those network equipment.

WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector With built-in protective elements like GDT (Gas Discharge Tube) and TVS (Transient Voltage Suppression), the strength of electrical surges will be greatly minimized with these two-step surge protection modes. WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector

These WTH­-SG/RJ45-S devices from WatchfulEye are extremely easy to set up within your home and office network.

Some surge protectors do come with Ethernet ports that perform similar tasks but they are usually bulky and can become very expensive if you happen to have many network communication devices at home or in the office.

These RJ45 surge protectors from WatchfulEye are compatible with 10/100/1000M Base-T Ethernet systems and work well with Cat6 network cables.

Bottom line: if you prefer hassle-free, easy to set up (Direct in Line Plug-in) Ethernet surge protection devices for your home or office network, you would not go wrong with WTH­-SG/RJ45-S from WatchfulEye.

PROS:
  • Compatible with 10/100/1000M Base-T Ethernet network
  • Easily to setup Direct in Line Plug-in
  • GDT/TVS (Two Step Protective Elements)
  • Affordable and Light-weight (5 gram)
  • 1-2,3-6,4-5,7-8 Pair Protection
CONS:
  • Not suitable for outdoor usage
WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector

WatchfulEyE WTH-SG/RJ45-S x2pcs Direct in Line Plug-in Ethernet Surge Protector

  • Ethernet Surge Protection
  • Standards compliance: IEC 61000-4-5
  • Data Rate: 100/1000Mbps
  • Pairs Protected: 1-2,3-6,4-5,7-8
Check Price
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2CERRXIAN Outdoor Ethernet Surge Protector

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CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)

At 22g each, this pair of outdoor network surge protectors can essentially double up as network cable extension as well as surge protection for your outdoor network devices such as POE antenna or router.

Have you ever been caught in a situation whereby the network cable is a tad too short and you wish there was an RJ45 coupler to help connect 2 network cables together?

Built with RJ45 8 pin female to female, this lightweight network coupler will save your day.

Each of the CERRXIAN network surge protectors comes with built-in 8 TVS anti-detonator which helps prevent powerful surge currents from thunders which may cause unexpected damages to your computer systems.

This pair of RJ45 surge protectors will be the perfect protection bridge between your Internet router and your computer and network equipment.

If you want something that is easy to operate and is compatible with both cat5,cat5e cable, you will not regret getting it.

PROS:
  • RJ45 Coupler extends the length of 2 network cables
  • Suitable for indoor and outdoor usage
  • Data transmission rate – 100Mbps
  • Built-in 8 TVS anti-detonator which prevents lightning and abnormal currents
  • Shields external EML,RFL and other electromagnetic interference
  • Uses PC flame retardant raw materials
  • Fire rating 100V0
  • Compatible with cat5, cat5e cable
CONS:
  • Only Female to Female connection type
CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)

CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)

  • PROTECTION EQUIPMENT – The Network Surge Protector Suppressors protect against network surges. Insert a Network Surge Protector in your network cables, to prevent network surging. This is a good insurance policy for your expensive router and outdoor POE antenna.
  • EXTENSION – Use this RJ45 Coupler to connect two network cables into one longer network cable. When your network cable is too short and needs to be extended, using this dual-pass is a very good solution. Data transmission rate:100Mbps
  • SURGE PROTECTION – Built-in 8 TVS anti-detonator prevents lightning and other abnormal current through the network cable damage to your computer equipment.
  • HIGH QUALITY – Fixed interface shielding external EML,RFL and other electromagnetic interference. Effectively prevent network signal damage. Using PC flame retardant raw materials, fire rating 100V0.
Check Price
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3APC PNET1GB Ethernet Surge Protector

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APC Surge Protector for Ethernet Data Port (10/100/1000 Base-T Ethernet lines), ProtectNet (PNET1GB) Having an Ethernet data port damaged or fried by power surges can be a very drastic event. When it happens, it could mean network and Internet connection outages. Or worse, fire hazards could happen when network communication devices get overheated due to electrical spikes among other things.

APC Surge Protector for Ethernet Data Port (10/100/1000 Base-T Ethernet lines), ProtectNet (PNET1GB) Being compatible with PoE (Power over Ethernet) and 10/100/1000 Base-T networks, APC ProtectNet PNET1GB provides you with peace of mind with its Catastrophic Event Protection feature.

The MOVs and Thermal fuse components offer instantaneous reactions to damaging surges caused by lightning strikes, transient spikes and wiring faults and so on. In the event that these components are damaged due to damaging power surges, Fail-Safe Mode would kick in and all excess electrical current would NOT be able to reach your network equipment. As a result, your precious data and network communication equipment and devices would be safe from getting catastrophic damages.

This lightweight RJ45 surge protector is only 50g and provides 1 nanosecond response to unexpected power spikes.

APC ProtectNet PNET1GB is RoHS compliant and offers 10 years of repair or replacement as a standard warranty.

APC is renowned for manufacturing high-quality surge protection and UPS systems hence if you need an affordable Ethernet surge protection device capable of protecting your sensitive electronic equipment, PNET1GB  is highly recommended.

PROS:
  • Compatible with Power over Ethernet (PoE) and 10/100/1000 Base-T networks
  • Fail-Safe Mode
  • Lightning and Surge Protection
  • Catastrophic Event Protection
  • 12 inches long ground wire
  • RoHS compliant
  • 10 Years Repair or Replacement warranty
CONS:
  • Grounding the green wire to the ground can be troublesome for some people
  • Replacement is needed whenever Fail-Safe Mode kicks in (a small price to pay for protecting your network equipment)
APC Surge Protector for Ethernet Data Port (10/100/1000 Base-T Ethernet lines), ProtectNet (PNET1GB)

APC Surge Protector for Ethernet Data Port ProtectNet (PNET1GB)

  • RJ45 10/100/1000 Base-T Ethernet protection
  • Compatible with Power over Ethernet (PoE) and 10/100/1000 Base-T networks
  • Fail-Safe Mode: Once the circuit of an APC SurgeArrest has been compromised by a power event, the unit disconnects equipment from the power supply ensuring that no damaging surges reach your equipment
  • SurgeArrest components such as MOVs and Thermal fuse ensure instantaneous reaction to lightning strikes and wiring faults. If the surge components are damaged due to power spike or over voltage, excess power cannot reach your equipment.
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4RiteAV – Outdoor Ethernet Surge Protector

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RiteAV - Outdoor Ethernet POE+ / RJ-45 Surge Protector (Shielded) for Thunder & Lightning Protection (Gigabyte) This RitaAV Indoor/Outdoor Ethernet surge protection device is an average quality device for people who needs to shield their outdoor webcam or network surveillance equipment from damaging electrical spikes from thunder and lightning strikes.

RiteAV - Outdoor Ethernet POE+ / RJ-45 Surge Protector (Shielded) for Thunder & Lightning Protection (Gigabyte) Built with Female to Female interface connector, installation is a breeze. Do note that the yellow/green wire must be grounded, preferably near to the network equipment.

This PoE outdoor RJ45 surge protector weighs only 45 grams and with it solid external housing, it is able to protect against damages caused by insects or any exterior damages.

If you are someone safety conscious, you will be happy to know that this RitaAV surge protector comes with spark gap tubes that lower explosion risk and overheating during hostile electrical surges.

You do not need to get this if you do not have any network communication device installed outdoor. By the way, do not get this until you read our review on Tupavco TP303 (another outdoor Ethernet surge protection device) below. 🙂

PROS:
  • Outdoor PoE/network surge protection
  • Protects outdoor electrical equipment
  • Solid casing prevents damages from insects and exterior damages
  • Spark gap tubes lowers explosion and overheating risks
  • Easy, straight-forward Female to female connection interface
CONS:
  • Only Female to Female (works either way) connection type
  • Lack of documentation
RiteAV - Outdoor Ethernet POE+ / RJ-45 Surge Protector (Shielded) for Thunder & Lightning Protection (Gigabyte)

RiteAV – Outdoor Ethernet POE+ / RJ-45 Surge Protector (Shielded) for Thunder & Lightning Protection (Gigabyte)

  • Supported Standards: 10/100/1000 BaseT
  • Connectors: RJ-45 Female to Female , just plug cable in and ground device
  • Note: Must be wired to ground near the protected device
  • A must have if you are using outdoor rated cable
  • POE+ Outdoor Ethernet Surge Protector
Check Price
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5Tupavco TP302 Ethernet Surge Protector

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Ethernet Surge Protector PoE+ Gigabit - Gas Discharge Tube for Full Protection - Mounting Flange - RJ45 Lightning Suppressor - LAN Network CAT5/CAT6 Thunder Arrestor - GbE 1000 Mbps - Tupavco TP302 Despite its low, affordable pricing, this Tupavco Ethernet surge protector comes packed full of features and functionalities. Not only is this lightning arrestor able to perform data transfer at 1 Gigabit per second, it is also designed to safeguard PSE (power-supply equipment) connected to the network from overcharged electrical transients.

Ethernet Surge Protector PoE+ Gigabit - Gas Discharge Tube for Full Protection - Mounting Flange - RJ45 Lightning Suppressor - LAN Network CAT5/CAT6 Thunder Arrestor - GbE 1000 Mbps - Tupavco TP302 This mountable RJ45 surge protector also offers both Line-Line and Line-Ground protection modes.

The Line-to-Line mode helps prevent short circuits (between different nodes in the network) while the Line-to-Ground mode prevents short circuits from happening between network nodes and the earth. Ethernet Surge Protector PoE+ Gigabit - Gas Discharge Tube for Full Protection - Mounting Flange - RJ45 Lightning Suppressor - LAN Network CAT5/CAT6 Thunder Arrestor - GbE 1000 Mbps - Tupavco TP302

I like the fact that this network surge protector provides multi-directional surge protection which means it does not matter which side the network equipment is connected to. When a power surge comes along, it will protect the opposite end of the connection interface.

If you have a lot of network communication devices or workstations at home or in the office, it is highly recommended to get one Ethernet surge protective device for each network node in the network.

Having physical space constraints is no longer an excuse for not getting this Tupavco surge protector as it can be easily mounted via the mounting flange.

All in all, I have to say this Ethernet surge protector deserves our editorial recommendation. Get this if you are not technically savvy and just want a simple to setup network surge protection device.

PROS:
  • Gigabit per second data transfer rate
  • Gas Discharge Tubes for Full Protection GDT [on all 4 pairs (8 wires)]
  • Solid Aluminum Case shields exterior damages
  • Mounting Flanges provide multiple mounting options
  • Line-Line, Line-Ground Protection
  • Bidirectional Clamping
  • Arrest EMF induced surges
CONS:
  • USB ports do not come with Smart IC Technology
  • 6 feet power cord could be longer
Ethernet Surge Protector PoE+ Gigabit - Gas Discharge Tube for Full Protection - Mounting Flange - RJ45 Lightning Suppressor - LAN Network CAT5/CAT6 Thunder Arrestor - GbE 1000 Mbps - Tupavco TP302

Ethernet Surge Protector PoE+ Gigabit – Gas Discharge Tube for Full Protection – Mounting Flange – RJ45 Lightning Suppressor

  • Ethernet Surge Protector for Gigabit GbE PoE/High PoE+ (HPoE) 1000 Mbps LAN Ethernet Network
  • Gas Discharge Tubes for Full Protection GDT – Lightning Suppressor RJ45 Cable Protection CAT6/CAT5
  • Aluminum Case,Ground Wire 12AWG,Line-Line Line-Ground Protection,Bidirectional Clamping,5KA 8/20μs
  • Thunder Arrestor Protects Computer Networking Equipment Devices like Router,Modem,Camera,Switch etc
  • Mounting Flanges provide option for screw mount to the Wall, Electric Panel or Network Rack Cabinet
Check Price
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6Tripp Lite DTEL2 in-Line Ethernet Surge Protector

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Tripp Lite in-Line Surge Protector Power Strip for Network and Phone Lines, 2-Line RJ11/RJ45, (DTEL2) There is really no need to compare Tripp Lite DTEL2 to anything else if the quality is your main criteria. Not only is Tripp Lite a trusted brand in the surge protection industry, but this model also offers a lifetime limited warranty which is a steal for the asking price.

Tripp Lite in-Line Surge Protector Power Strip for Network and Phone Lines, 2-Line RJ11/RJ45, (DTEL2) In addition to whatever features that come with Tripp Lite DTEL2, it is only right to mention that it caters to surge protection for both Network and Phone lines.

That means if you can use it for both RJ45 (network) or RJ11 (phone) communication devices at home or in the office.

Just like Tupavco TP302 above, Tripp Lite DTEL2, too, offers comprehensive protection for electrostatic discharge, lightning and faulty wiring.

Bottom-line, if you are an affordable Ethernet surge protector from a trusted brand to safeguard your phone and network equipment (e.g. Internet routers and modem), this should be an easy buying decision for you.

PROS:
  • Dual protection for both phone and network equipment
  • Additional protection against electrostatic discharge, lightning and faulty wiring
  • Comes with RJ11 patch cable
  • Lifetime Limited Warranty
  • Great price from a trusted industrial brand
CONS:
  • Not for outdoor usage
  • No Diagnostic LED
Tripp Lite in-Line Surge Protector Power Strip for Network and Phone Lines, 2-Line RJ11/RJ45, (DTEL2)

Tripp Lite in-Line Surge Protector Power Strip for Network and Phone Lines

  • POWERFUL NETWORK AND PHONE LINES: Surge suppressor is designed to protect data and communications equipment against AC transients caused by lightning, electrostatic discharge and ground surges that can enter equipment from the signal lines or chassis ground.
  • TELEPHONE/ETHERNET LINE SURGE PROTECTION: The DTEL2 features RJ45/RJ11 plugs for modems, telephone lines and answering or fax machines.
  • DATALINE SURGE PROTECTION: It protects up to 2 network or phone lines, modems, fax machines and answering machines against damage from lightning, electrostatic discharge and ground surges. Comes with RJ11 telephone patch cable.
  • COMPREHENSIVE PROTECTION: Protects against the effects of electrostatic discharge, faulty wiring and lightning
  • LIFETIME LIMITED WARRANTY: This In-Line Surge Protector offers a Lifetime Limited Warranty.
Check Price
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7Ubiquiti ETH-SP-G2 Surge Suppressor

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Ubiquiti ETH-SP-G2 Surge Suppressor/ProtectorIf you are looking for a versatile Ethernet surge protection unit that is both cost-effective and yet comes with decent quality and features, look no further. Ubiquiti ETH-SP-G2 (2nd generation model) is suitable for both indoor and outdoor usage.

This Ubiquiti RJ45 surge protector is also capable of protecting your network devices against ESD (Electrostatic Discharge) as well as voltage surges and transients. This Ethernet surge suppressor will prove to be the worthy middleman between your Network and PoE equipment and end-user network nodes that use RJ45 connections. E.g. PC workstations and laptops

This 80-gram network surge protection device comes with both female connectors within the box which helps connect and safeguard both sides of the network should any electrical surges come along.

Get this if you do not have high expectations and are happy with the standard protection of all your network equipment.

PROS:
  • Protect against ESD (Electrostatic Discharge) and power surges
  • Female to Female connectors
  • Cost-effective option
  • Play and play installation (Easy setup)
  • Protects all Outdoor Network/PoE equipment
  • Sleek looking white exterior housing
  • Lightweight at 80 grams
CONS:
  • Lack of wire for grounding
  • casing may not be robust enough for rough handlings
Ubiquiti ETH-SP-G2 Surge Suppressor/Protector

Ubiquiti ETH-SP-G2 Surge Suppressor/Protector

  • RJ45 10/100/1000 Ethernet Data line Protection
  • (2) RJ45 Female Connectors Interface Connections
  • Safeguards against power surges and Electrostatic Discharge
Check Price


Marc Edwards
Marc Edwards

Marc Edwards is the co-founder of GagtheSurge and is actively involved in writing review and information articles for the site. He loves traveling and has been to most of the countries across the four major continents. Besides working and traveling, he also enjoys jungle explorations and deep sea diving.

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