Best Surge Protector for Washing Machine & Dryer: Top 6 of 2026

Thomas Hawkins August 8, 2020

Last updated on February 28th, 2024.

Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet...

There’s no point spending over $500 on a washing machine just to have it blow up after your first electrical surge.

A proper washing machine surge protector is essential to protecting your washing machine from overcurrent events and electrical surges.

A high-quality washing machine surge protector has a lifetime warranty, conforms to UL 1449 safety standards, and provides over 800 joules of surge protection.

A faulty surge protector will just sit there giving you a false sense of security. Your washing machine will be destroyed when something actually does happen.

To help you separate the best from the worst – we reviewed the Top 6 Surge Protectors For Washing Machine & Dryers of 2026.

Buy with the confidence that you’re buying one of the top surge protectors for a washing machine available.

Let’s dive into the reviews.

Top 6 Best Surge Protectors For Washing Machines & Dryers

Preview	Product	Key Features
Best Overall	Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power Strip Surge Protector, 2...	HEAVY-DUTY OUTLET EXTENDER: Features 2-outlets, a robust 1410-joule rating, and a sturdy all-metal housing. Ensure comprehensive protection for your valuable electronics, including network, garage, Audio/Video, and industrial equipment. POWER CONDITIONING: Patented design features exclusive isolated filter banks that limit noise interaction among connected devices. Also blocks EMI/RFI line noise up to 80 dB, ensuring optimal performance of your devices. PREMIUM SAFETY FEATURES: Conforms to UL 1449 3rd Edition safety standards and features the best possible Let Through Rating or Clamping Voltage of 330V. Includes a 15A circuit breaker with automatic shutoff if the protection circuit is incapacitated.	CHECK PRICE
Premium Choice	Tripp Lite ISOBAR2-6 Isobar 2 Outlet Heavy Duty Power Strip Surge Protector, 1410 Joules, 6ft...	HEAVY-DUTY SURGE PROTECTOR POWER STRIP: Features 2-outlets, a robust 1410 joule rating, and a sturdy all-metal housing. Ensure comprehensive protection for your valuable electronics, including A/V, network, garage, and industrial equipment POWER CONDITIONING: Patented design features an exclusive isolated filter bank that limit noise interaction among connected devices. Also blocks EMI/RFI line noise up to 80 dB, ensuring optimal performance of amplifiers and audio/video equipment PREMIUM SAFETY FEATURES: Conforms to UL 1449 3rd Edition safety standards and exceeds IEEE 587 Category A and B surge suppression specifications. Includes a 12A circuit breaker with automatic shutoff if the protection circuit is incapacitated	CHECK PRICE
Excellent Value	Tripp Lite 4 Rotatable Outlet Surge Protector Power Strip, Wall Tap, 2 USB Charging Ports, Black,...	PROTECT ANY ELECTRONIC DEVICE FROM POWER SURGES & SPIKES: Rotating surge Protector with four outlets protects your PC, personal computer, laptop, printer, scanner, router, phone, fax, modem, television, lamp or any other home/office electronics from dangerous power surges, spikes & line noise. CONVENIENT ROTATING OUTLETS & BUILT-IN USB CHARGING: This surge suppressor includes four 5-15R outlets that rotate independently to provide the perfect position to connect your equipment. It also provides dual USB charging ports with a maximum of 3.4 AMP per port, ideal charging your smart phone or tablet. No cord - direct plug in design is optimal for a clean professional look. SAFETY FIRST! HIGH JOULE-RATING - CONFORMS TO UL 1449 SAFETY STANDARDS: Automatic shutoff cuts power to all outlets when the protection circuit has been compromised. Rotating surge strip provides diagnostic LED which indicates protected status (green). Surge with usb charging ports offers 1080 joules meaning maximum protection for your equipment. Conforms to current UL 1449 3rd Edition safety standards	CHECK PRICE
	Tripp Lite 2 Outlet Portable Surge Protector Power Strip, Direct Plug In, Tel/Ethernet...	Home and Office direct plug-in AC surge suppressor protects your computer/laptop, home theater system and other devices from a voltage spike and more Travel size surge protector with a retractable plug, perfect for on-the-go applications or space sensitive areas. Fits perfectly in laptop case 1-line for telephone/modem/Ethernet (100BaseT, high-speed) surge protection to safeguard phones, fax machines, networks and routers on a single dial-up or Ethernet line	CHECK PRICE
	Tripp Lite 1 Outlet Portable Surge Protector Power Strip, Direct Plug in, Timer, & $5,000...	Home and Office direct plug-in AC surge suppressor protects your computer/laptop, home theater system and other devices from a voltage spike and more Travel size surge protector perfect for on-the-go applications or space sensitive areas. Fits perfectly in laptop case Built-in timer allows user to turn off devices at a variety of times (1, 3 or 6 hours) to save energy. Perfect for late night readers, fish aquariums or reptile tanks	CHECK PRICE
	Tripp Lite 6 Outlet Surge Protector Power Strip, Direct Plug in, Black, Lifetime Limited Warranty...	PROTECT ANY ELECTRONIC DEVICE FROM POWER SURGES & SPIKES: Wall mount power strip surge protector with six outlets protects your PC, personal computer, laptop, printer, scanner, router, phone, fax, modem, television, lamp or any other home/office electronics from dangerous power surges, spikes & line noise. BLACK WALL TAP SIX OUTLET SURGE PROTECTOR: This surge suppressor provides six NEMA 5-15R outlets and plugs directly into standard NEMA 5-15R outlet with no power cord. SAFETY FIRST! CONFORMS TO UL 1449 SAFETY STANDARDS: Diagnostic LED confirm protection. The SK6-0B provides 540 joules of surge protection to prevent voltage spikes from damaging your valuable electronics.. Automatic shutoff cuts power to outlets when the protection circuit has been compromised	CHECK PRICE

What to Look For in a Washing Machine & Dryer Surge Protector

There are a number of things to look at when browsing for the very best surge protector for your washing machine & dryer. We’ve summarized these key features listed below:

Number of Sockets

When positioning your washing machine and dryer together, two sockets become essential. Opting for a surge protector with just one socket might lead you to rely on a multi-plug extension, which not only increases costs but also consumes valuable space. It’s crucial to evaluate your socket needs carefully before selecting a surge protector to ensure it aligns perfectly with your setup.

Safety Rating

Navigating through the myriad of safety standards set by various organizations can be daunting. For your washing machine and dryer, the UL standard—established by Underwriters Laboratories—stands out as the benchmark. It’s tailored to ensure the optimal safety of your appliances, making it a critical factor to consider for reliable surge protection.

UL is among a number of businesses approved to perform safety testing by the U.S. federal agency Occupational Safety and Health Administration (OSHA). OSHA has a list of authorized screening labs, which are acknowledged as Nationally Recognized Testing Laboratories.

Even within UL though, there are a bunch of security requirements that could apply. For appropriate washing machine & dryer surge protection, you’re generally want to be looking at the UL 1449 security standard.

UL 1449 is the Underwriters Laboratories Safety Standard for Surge Protective Devices (SPD)– i.e. perfect for washing machine & dryer surge protection.

So make certain your washing machine & dryer surge protector validates to UL 1449.

Warranty

A comprehensive warranty isn’t just a safety net—it’s a testament to the product’s durability. A longer warranty indicates the manufacturer’s confidence in their surge protector, suggesting it’s built to last and protect your appliances effectively over time.

Not simply for the obvious reason that if something goes wrong, you’ll have the ability to make a claim, however for the signal that a long warranty suggests about the quality of the washing machine & dryer surge protector (or rather, the self-confidence the supplier has for the washing machine & dryer surge protector).

If suppliers provided generously long guarantees for washing machine & dryer surge protectors that went bust after 2 weeks, they would not be around for long.

So you wish to wish for longer service warranties and high insurance coverage payouts on your washing machine & dryer surge protector (from a business that has actually been around for more than five years).

Clamping Voltage

Understanding clamping voltage is crucial—it’s the threshold at which your surge protector springs into action to shield your appliances. It ensures that only a safe voltage level reaches your washing machine and dryer, guarding them against potential overvoltage damage.

For example, a washing machine & dryer surge protector might restrict a 6,000 V surge so that just 600V is ‘noticeable’ to the load. Thus here the clamping voltage for this washing machine & dryer surge protector is 600V.

If the clamping voltage is too expensive, then the surge protector will permit excessive voltage to pass to your washing machine & dryer (which will break it).

CHECK the optimum ranked voltage of your washing machine & dryer prior to purchasing a surge protector, so make sure that the clamping voltage of your washing machine & dryer surge protection gadget is LOWER than the maximum operating voltage of your washing machine & dryer.

In basic though, the clamping voltage must be LESS than 700V for a washing machine & dryer surge protector.

Joule Rating

The joule rating is a key indicator of a surge protector’s shielding capacity, measuring the energy it can absorb and neutralize. Opting for a higher joule rating equips your appliances with robust defense against erratic power spikes, ensuring their longevity and optimal performance.

So how many joules of surge protection do you require? The answer depends on what you’re safeguarding – are you protecting a PC, washing machine & dryer, and even a whole home?

Here are some rough joule rating standards:

A system with as much as 1000 joules of surge protection is enough for little electronics.
A surge protector with 1000 to 2000 joules will provide adequate protection for cleaning makers & clothes dryers, office devices, and power tools.
Consider the highest joule rating (2000+) for pricey gaming consoles, house theater systems, and any computer that saves essential data. Anything that is extremely expensive or irreplaceable.

So for your washing machine & dryer surge protector, look for a joule rating between 1000 to 2000.

Diagnostic LEDs

It would be best if you had a way to validate that your washing machine & dryer surge protector is working– which’s what diagnostic LEDs are for.

Search for washing machine & dryer surge protection that includes diagnostic LED lights that validate power, protection, and line fault status at a look.

EMI/RFI Noise Filtering

EMI = Electromagnetic Interference, while RFI = Radio Frequency Interference. Although these terms are utilized interchangeably, they’re technically not the exact same thing. For the purposes of washing machine & dryer surge protection however, we can treat them alike.

Many filters– e.g. low pass filters, high pass filters, or band pass filters– just allow specific kinds of frequencies through, meaning a set range of EMI/RFI emissions will be transferred to the device being safeguarded.

This is since certain EMI/RFI emissions will not interfere with the performance frequencies of various electrical and electronic gadgets.

So the objective of EMI/RFI is noise filtering is to eliminate electromagnetic and radio frequency interference that will interfere with the washing machine & dryer surge protection.

So look for washing machine & dryer surge protectors that have EMI/RFI emissions.