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Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device - Comprehensive Surge Protection, TPMOV Technology, Watertight Enclosure - UL Listed and Reliable

4.8 4.8 out of 5 stars 988 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Surge Protectors by Intermatic

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Purchase options and add-ons

  • COMPREHENSIVE SURGE PROTECTION - Safeguard your HVAC equipment and home appliances with the Intermatic AG3000 Surge Protective Device, offering three modes of protection (L-G, L-L, L-N) to shield against power surges and prevent potential damage.
  • ADVANCED TPMOV TECHNOLOGY - Experience peace of mind with our state-of-the-art Thermally Protected Metal Oxide Varistor technology, eliminating the hazardous failure modes associated with standard MOV technology and providing reliable surge protection for your devices.
  • BUILT TO LAST - The Type 4X watertight and UV resistant plastic enclosure of the AG3000 ensures durability and longevity, making it suitable for both indoor and outdoor installations. Protect your equipment against environmental elements and enjoy long-lasting surge protection.
  • EASY MONITORING - The green LED indicator on the AG3000 provides a visual status of protection, allowing you to quickly verify that your equipment is shielded against power surges. Stay informed and confident in the safety of your devices.
  • TRUSTED AND CERTIFIED - The Intermatic AG3000 is UL Listed to ANSI/UL 1449 4th Edition, meeting the highest safety standards in the industry. With a 3-year product warranty and a $7,500 connected equipment warranty for 3 years, you can trust in the quality and reliability of Intermatic's surge protection solution.
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Customer ratings by feature

Easy to install
4.8 4.8
Comfort
4.7 4.7
Value for money
4.6 4.6
Tech Support
4.5 4.5

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From the manufacturer

AG3000, Surge Protection, Surge Protective Device, HVAC, HVAC Equipment, Power Surges
AG3000, surge protection, surge protection device, HVAC, HVAC equipment, power surges

AG3000

home, house, surge protection, whole home surge protection, whole house surge protection
Specifications
  • cULus Certified
  • HVACR Certified

Unmatched Protection from Surges, Brownouts and System Short Cycling

AG3000 Surge Protective Device

Power surges are the silent killer for home appliances and HVAC equipment. Most homeowners protect their electronics, but leave more valued equipment unprotected. Surges can wipe out equipment and leave you searching for answers. Search no more. The easy-to-install AG3000 Surge Protective Device is the perfect add-on for HVAC equipment. A green LED indicator provides the status of protection. Trusted, state-of-the-art TPMOV technology eliminates potentially hazardous failure modes.

  • Three modes of protection: L-G, L-L, L-N
  • TPMOV surge protection technology
  • Green LED indicator provides status of protection
  • Type 4X watertight and UV resistant plastic enclosure
  • UL Listed to ANSI/UL 1449 4th edition

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Product guides and documents

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device - Comprehensive Surge Protection, TPMOV Technology, Watertight Enclosure - UL Listed and Reliable

Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device - Comprehensive Surge Protection, TPMOV Technology, Watertight Enclosure - UL Listed and Reliable


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Product Description

Power surges are the silent killer for home appliances and HVAC equipment. Most homeowners protect their electronics, but leave more valued equipment unprotected. Surges can wipe out equipment and leave you searching for answers. Search no more. The easy-to-install AG3000 Surge Protective Device (SPD) is the perfect add-on for HVAC equipment. A green LED indicator provides the status of protection. Trusted, state-of-the-art TPMOV (Thermally Protected Metal Oxide Varistor) technology eliminates the potentially hazardous failure modes that are commonly associated with standard MOV technology. UL Listed to ANSI/UL 1449, 4th Edition.

Customer reviews

4.8 out of 5 stars
4.8 out of 5
988 global ratings

Customers say

Customers like the ease of installation, performance, quality, value, and light of the home lighting accessory. For example, they mention it's super easy to install, functions as expected, and is well built. That said, opinions are mixed on warranty.

AI-generated from the text of customer reviews

98 customers mention96 positive2 negative

Customers find the installation of the home lighting accessory to be easy and straight forward. They say the product is well built, and easy to install at the condenser disconnect. Customers also appreciate the good instructions and say it went smooth and quick.

"...The compact and easy-to-install design allows for seamless integration into existing HVAC setups, making it suitable for both new installations and..." Read more

"Item arrived in good shape. Very easy to install...." Read more

"...Install was straight forward just needed 3 wire connectors, on the Line side...." Read more

"...So far so good. Installation took 10mins very basic wiring and I love the green light indicator especially at night!" Read more

31 customers mention24 positive7 negative

Customers like the performance of the surge protector. They mention that it functions as expected, is easy to install, and has solid performance. Some say that it works only with surges and not brownouts.

"...Its effectiveness, versatility, compatibility, durability, ease of installation, and value make it an indispensable accessory for anyone looking to..." Read more

"...So far it appears to be working well, wont really know till I get a power surge." Read more

"Works as advertised. Easy to install" Read more

"...This means the unit has failed in some way and is no longer offering full protection...." Read more

30 customers mention30 positive0 negative

Customers are satisfied with the quality of the product. They mention it's an industrial strength multi-stage surge suppressor that feels and looks well built. They appreciate its versatility, compatibility, durability, and high joules ratings. Some say that it holds up through lightening storms and has no failures of household electronics.

"...Its effectiveness, versatility, compatibility, durability, ease of installation, and value make it an indispensable accessory for anyone looking to..." Read more

"AG 3000 surge protector arrived quickly and appears of good quality I purchased this particular surge protector because of many good reviews some of..." Read more

"...It also has 10 Ga. wire rather than the little 14 Ga. wire that others use...." Read more

"...The max surge current is 100kA. And the fact that the pre-wired leads are 10 gauge is reassuring...." Read more

25 customers mention25 positive0 negative

Customers appreciate the value of the home lighting accessory. They say it is a great investment, affordable peace of mind, and a good buy. Customers also mention that it has a high protection rating for the price.

"...The affordable price point and long-term benefits make it a smart and practical choice for homeowners and facility managers looking to protect their..." Read more

"This was reasonably priced and arrived on time.The green light came on, and the AC is running.All seems good so far...." Read more

"...Highly recommend and easy to install." Read more

"Value for the money, quality, and appearance is what put this one on top of the list." Read more

23 customers mention18 positive5 negative

Customers like the light. They say it has a bright green LED that looks reassuring, is visible from inside their home, and is a nice bright green "operational" status LED indicator. Some customers also say it's easy to install and that the green indicator light on the side makes it look nice.

"...Installation took 10mins very basic wiring and I love the green light indicator especially at night!" Read more

"...The little green light is visible from inside our home. It tells me that its still doing its job...." Read more

"...One thing that did exceed my expectations is the green indicator light on the side. The light is brighter than I thought and I like it" Read more

"I like theGreen LED light indicating reliable clean power" Read more

21 customers mention16 positive5 negative

Customers like the surge protection of the product. For example, they say it provides comprehensive protection against voltage spikes and transient overvoltages. They also say it's a good way to protect your A/C compressor and is easy to install. Some mention that it'll protect your investment from surges and is a great insurance for your central air.

"...and catastrophic surge events, this device provides comprehensive protection against voltage spikes and transient overvoltages that can cause..." Read more

"The Intermatic AG3000 is a good surge protective device for the outside HVAC unit (compressor, condensor, fan)...." Read more

"Power these days is a little sketchy this thing will protect your investment from surges!" Read more

"...It is not designed to provide neutral line protection as most residential condenser units don't have a neutral anyway...." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the appearance of the home lighting accessory. They mention that it has a slim line look and is easy to install.

"...This product installed well and looks great but if there is no power surge to test it how would I know whether it works or not?..." Read more

"Value for the money, quality, and appearance is what put this one on top of the list." Read more

"Easy to install, slim line look. Decent price" Read more

"really like the look, the name is easy to pronounce, can I review when the advertised protection is realized?" Read more

8 customers mention5 positive3 negative

Customers have mixed opinions about the warranty of the home lighting accessory. Some mention that it comes with a 3 year warranty, good insurance, and prevents costly repairs or replacements due to surges. Others say that it's useless and pointless.

"...by helping to extend the lifespan of your HVAC equipment and prevent costly repairs or replacements due to surge-related damage...." Read more

"...Poor customer service, pointless “warranty” and a very disatisfied customer." Read more

"...It comes with a 3 year warranty" Read more

"...Comes with a 3 yr equipment warranty up to $7500...." Read more

Easy Install
5 Stars
Easy Install
I decided to install this surge protector on a 18k btu Mitsubishi Mini Split. Install was straight forward just needed 3 wire connectors, on the Line side. Took about 15 minutes in total from start to finish, I like the fact they offer a 7500 warranty read it carefully you first must have your homeowner insurance claim and they review the finding. Same with renter insurance. It's a peace of mind being here in South Florida.
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Top reviews from the United States

Reviewed in the United States on March 1, 2024
The Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device offers peace of mind by safeguarding your HVAC system against damaging power surges. As someone who prioritizes the longevity and reliability of home appliances, I find this surge protective device to be an essential investment in protecting valuable HVAC equipment.

First and foremost, the effectiveness of the AG3000 in protecting HVAC systems from power surges is exceptional. Designed to handle both common and catastrophic surge events, this device provides comprehensive protection against voltage spikes and transient overvoltages that can cause irreparable damage to sensitive HVAC components. With its robust construction and advanced surge suppression technology, it offers reliable performance and peace of mind, ensuring uninterrupted operation of your HVAC system.

Additionally, I appreciate the versatility and compatibility of the AG3000 surge protective device. Designed for use with both residential and commercial HVAC systems operating at 120/240 volts, it offers universal compatibility with a wide range of equipment, including air conditioners, heat pumps, furnaces, and more. The compact and easy-to-install design allows for seamless integration into existing HVAC setups, making it suitable for both new installations and retrofit projects.

One of the standout features of the AG3000 surge protective device is its durability and longevity. Constructed from high-quality materials and engineered to withstand harsh environmental conditions, it provides long-lasting protection for your HVAC system year after year. The device is backed by a robust warranty, offering added assurance of its reliability and performance over time.

Furthermore, I am impressed by the ease of installation and maintenance offered by the AG3000 surge protective device. The compact design and straightforward wiring configuration make installation quick and hassle-free, requiring minimal time and effort to set up. The LED status indicators provide visual confirmation of proper operation, allowing for easy monitoring and troubleshooting.

In terms of value, the AG3000 surge protective device offers an excellent return on investment by helping to extend the lifespan of your HVAC equipment and prevent costly repairs or replacements due to surge-related damage. The affordable price point and long-term benefits make it a smart and practical choice for homeowners and facility managers looking to protect their HVAC investments.

Overall, I am highly satisfied with the Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device. Its effectiveness, versatility, compatibility, durability, ease of installation, and value make it an indispensable accessory for anyone looking to safeguard their HVAC system against power surges and ensure reliable performance for years to come.
3 people found this helpful
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Reviewed in the United States on April 8, 2024
We just had our HVAC heating and cooling replaced with a Trane unit and I ordered this on Amazon to protect my investment. Only time will tell if this truly works. So far so good. Installation took 10mins very basic wiring and I love the green light indicator especially at night!
Customer image
5.0 out of 5 stars HVAC Surge Protector
Reviewed in the United States on April 8, 2024
We just had our HVAC heating and cooling replaced with a Trane unit and I ordered this on Amazon to protect my investment. Only time will tell if this truly works. So far so good. Installation took 10mins very basic wiring and I love the green light indicator especially at night!
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One person found this helpful
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Reviewed in the United States on April 27, 2024
Item arrived in good shape. Very easy to install. Please follow instructions for installion on wire length and not coiling the wires.. There are several you tube videos that give wrong instructions. Very happy with purchase. I bought two of them. A/C company wanted $350 installed per protector for similar product. Save yourself some money on this quality product.
Reviewed in the United States on June 10, 2013
This item arrived when expected and was new in the box. Intermatic has a long history of producing surge protection devices (SPD). This device is made of two 150V clamping devices in a single NEMA 4x box. It's designed to be connected to two hot legs (standard residential split phase) and ground. It is not designed to provide neutral line protection as most residential condenser units don't have a neutral anyway. This is not an EMF or noise filter, just a spike/surge protector.

One reason I got this unit is because it is listed with the new standards (3rd edition) and it is listed as a type 1 and type 2 device. It also has 10 Ga. wire rather than the little 14 Ga. wire that others use. The specs are not the highest, but it's hard to directly compare 3rd edition standards with earlier SPD/TVSS ratings. Other comparable devices are the Supco SCM150 and the ICM516 units.

My HVAC condenser is not a computerized heat pump but it still has advanced controllers that cost hundreds to replace if they blow up. So it's worth doing something simple to try and help reduce any surges/spikes from damaging my condenser. Intermatic also includes a 3-year $7500 connected equipment warranty (which may be as hard to prove and collect on as others).

It was easy to install at the condenser disconnect (it installs in any position in a standard knock out, I picked left side). It comes with a rubber gasket for the lock nut to prevent water from getting in. It has a simple single green LED that tells you there is power and it's "working". It's hard to truly test these units as I'm not in an area that takes a lot of hits. If this unit blows up (or fails in some way) and my HVAC system is still running then I'll say it works and get a replacement, but until there is a problem I'll have to assume it's doing the job...

UPDATE: Just short of 2 years the green light went out. This means the unit has failed in some way and is no longer offering full protection. I went to Intermatic's web site, filled out some forms, got an email, FAXed them the information and amazon receipt without talking to a person. I had a new unit for free in about a week. No equipment damage noted.
99 people found this helpful
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Reviewed in the United States on April 5, 2024
I decided to install this surge protector on a 18k btu Mitsubishi Mini Split. Install was straight forward just needed 3 wire connectors, on the Line side. Took about 15 minutes in total from start to finish, I like the fact they offer a 7500 warranty read it carefully you first must have your homeowner insurance claim and they review the finding. Same with renter insurance. It's a peace of mind being here in South Florida.
Customer image
5.0 out of 5 stars Easy Install
Reviewed in the United States on April 5, 2024
I decided to install this surge protector on a 18k btu Mitsubishi Mini Split. Install was straight forward just needed 3 wire connectors, on the Line side. Took about 15 minutes in total from start to finish, I like the fact they offer a 7500 warranty read it carefully you first must have your homeowner insurance claim and they review the finding. Same with renter insurance. It's a peace of mind being here in South Florida.
Images in this review
Customer image
Customer image
2 people found this helpful
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Reviewed in the United States on January 20, 2024
AG 3000 surge protector arrived quickly and appears of good quality I purchased this particular surge protector because of many good reviews some of which were on a split system similar to mine. Relatively easy to install if you are comfortable doing electrical work. Unit best protects for voltage surges vs under voltage. So far it appears to be working well, wont really know till I get a power surge.
One person found this helpful
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Reviewed in the United States on February 26, 2024
This was reasonably priced and arrived on time.
The green light came on, and the AC is running.
All seems good so far.

I need to wait for a lightning strike to tell you if it works.
Reviewed in the United States on April 4, 2024
Top of the line

Top reviews from other countries

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brian
5.0 out of 5 stars Great product
Reviewed in Canada on February 14, 2024
It does what is required. At night it glows green to let you know its functioning. I like that it has a clear housing. If there is a failure, u can see the circuitry inside. It’s cool looking.
One person found this helpful
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eric labelle
5.0 out of 5 stars Facile installation
Reviewed in Canada on September 5, 2023
Très bien
herb demmons
5.0 out of 5 stars that it will protect heat pump
Reviewed in Canada on February 17, 2023
easy to install
Skribber
5.0 out of 5 stars Working well
Reviewed in Canada on November 25, 2021
Works well, with good protection at a good price..
One person found this helpful
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Marlene Dewey
5.0 out of 5 stars Good product
Reviewed in Canada on September 22, 2019
Met our expectations
2 people found this helpful
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