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Intermatic CD1-024R Compressor Defender Protects Central Air Conditioner / Heat Pump Compressors and Circuit Boards

4.4 4.4 out of 5 stars 147 ratings

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Purchase options and add-ons

Brand Intermatic
Voltage 120 Volts
Power Source Corded Electric
Included Components CD1-024R

About this item

  • Surge, brownout and short cycle protection with 120, 208 and 240 VAC loads
  • LED indicators provide real-time status updates for quick and easy troubleshooting
  • Auto-sense voltage technology 120-240 VAC universal input voltage
  • Meets ANSI/UL 1449 3rd edition requirements
  • UL listed for safety
See more product details

Customer ratings by feature

Easy to install
4.2 4.2
Value for money
4.0 4.0

Frequently bought together

$108.50
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$65.25
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Sold by JD's Electrical Supplies and ships from Amazon Fulfillment.
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$274.51
Get it as soon as Wednesday, Mar 27
In Stock
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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. [PDF ]

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Intermatic

Intermatic CD1-024R Compressor Defender Protects Central Air Conditioner / Heat Pump Compressors and Circuit Boards


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Product guides and documents

Product Description

Power disturbances damage air conditioner compressors without warning. Let the Compressor Defender by Intermatic take the hit so air conditioners are never interrupted. The all-in-one Compressor Defender device protects compressors and circuit boards in residential and light commercial applications from brownouts, surges and short cycles. The protective device can be installed inside a condensing unit or on an outdoor compressor. LED indicators provide real-time status updates for quick and easy troubleshooting. Compliant with AHRI Standard 110-1012 Range B2 for voltage drop protection. Specifications: 120-240 VAC Single Phase 60 Hz | Normally Closed Relay 24 VAC | Type 2 SPD | Control Output Current Rating: 2A @ 24 VAC, isolated N.C. contact | Voltage Protection Rating: L-N/G: 700, L-L: 1200 | Nominal Discharge Rating: In (10 kA) |Max Continuous Over-Voltage (MCOV): L-N/G: 150V, L-L: 300V | Short Circuit Current Rating: 20kA | Under-Voltage Response Time: 3 line cycles |Operating Temp: -40°F to 158°F (-40°C to 70°C).

Important information

Bulb Voltage

120 volts

Customer reviews

4.4 out of 5 stars
4.4 out of 5
147 global ratings

Customers say

Customers like the ease of installation, performance, and quality of the air compressor. For example, they mention that the instructions are clear, it works well under normal conditions, and the short-cycle feature works as designed. Opinions are mixed on value.

AI-generated from the text of customer reviews

26 customers mention23 positive3 negative

Customers find the air compressor easy to install with basic electrical skill. They say the instructions are clear and the product is easy to use. Customers also mention that the disconnect box is easy wire.

"...Easy to install...." Read more

"...do with the knockout in the disconnect box, the actual surge protector was easy to install and presumably is working fine." Read more

"...It is only used with 120V circuits.This was an easy install...." Read more

"...Bought it on Amazon, took 15 minutes to install. It's really easy to install, just need to know the basics of electrical and where is Y1 on your AC..." Read more

23 customers mention16 positive7 negative

Customers have mixed opinions about the value of the air compressor. Some mention that it provides inexpensive protection for expensive equipment, while others say that it's a defective product that's vulnerable to failure when switching AC power from a whole-house.

"...It provides not only surge protection, but also protects against low voltage conditions which can also destroy your compressor. Easy to install...." Read more

"Affordable price" Read more

"...Returning. Absolute waste of money...." Read more

"...While not cheap, the "Compressor Defender" is a pretty cheap way to protect your A/C compressor...." Read more

14 customers mention10 positive4 negative

Customers like the performance of the air compressor. They say it looks good, works well under normal conditions, and has a green LED to show it is working. Some mention that the short-cycle feature works as designed and that there is no power surges or brownouts to date.

"This is a very good product...." Read more

"...box, the actual surge protector was easy to install and presumably is working fine." Read more

"...I can also confirm that the short-cycle feature works, but I suspect a similar feature is built into my unit...." Read more

"...manufacturer, Itermatic, to troubleshoot and they confirmed it does not work. Called thier warranty and no call back its been 2 weeks and counting." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the quality of the air compressor. They mention that it looks great, is of high quality, and is easy to install.

"I liked everything about it. Quality looks great, easily installed, and most of all, peace of mind knowing my system is protected." Read more

"...It is high quality and easy to install. There is a green LED to show it is working." Read more

"...Very easy to install with basic electrical skill. Looks good. Hope it works as good as it looks." Read more

"Good product" Read more

Easy to install
5 Stars
Easy to install
This was very easy to install. Does it work? I will have to wait for a storm to find out, but I would not have purchased it if I did not think it would work.
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Top reviews from the United States

Reviewed in the United States on November 21, 2023
One person found this helpful
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Reviewed in the United States on January 2, 2024
Reviewed in the United States on May 30, 2016
30 people found this helpful
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Reviewed in the United States on August 3, 2020
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4.0 out of 5 stars Easy to install, feels safer.
Reviewed in the United States on August 3, 2020
Got a lightning strike on a tree 30 feet away from the house that damaged the HVAC ($3000 to fix). HVAC guy told me that this equipment would have prevented it and get me a $400 quote to install it. Bought it on Amazon, took 15 minutes to install. It's really easy to install, just need to know the basics of electrical and where is Y1 on your AC (the yellow one unless your AC is 100 years old).
I thought the short cycle protection would interfere with the one on the Nest thermostat but it is not the case, AC starts when both compressor defender and nest stop the short cycle delay.
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5 people found this helpful
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Reviewed in the United States on February 6, 2024
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5.0 out of 5 stars Easy to install
Reviewed in the United States on February 6, 2024
This was very easy to install. Does it work? I will have to wait for a storm to find out, but I would not have purchased it if I did not think it would work.
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Reviewed in the United States on February 12, 2024
Reviewed in the United States on May 24, 2023
6 people found this helpful
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Reviewed in the United States on July 20, 2023
3 people found this helpful
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Top reviews from other countries

An
5.0 out of 5 stars Good investment
Reviewed in Canada on January 21, 2021
Customer image
An
5.0 out of 5 stars Good investment
Reviewed in Canada on January 21, 2021
Super easy to install. It is winter right now but getting prepared for summer. Too cold to connect the 24v lines which control the the unit to turn on/off. The cables are approximately 10-12 awg (great). Well worth to protect. Now have one at main electrical panel, furnace and air conditioner.
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