The right surge protector plays a crucial role in safeguarding your HVAC system. The Intermatic AG3000 is perfect for reliable protection, featuring comprehensive surge protection and TPMOV technology.
From residential setups to commercial applications, these devices adapt seamlessly to various environments, ensuring your HVAC system remains safe and operational.
We detail pros, cons, and hidden perks ahead.



Intermatic AG3000 Universal HVAC Surge Protector
Intermatic AG3000: 120/240 VAC, Type 4X watertight enclosure, 3-year warranty.
Benefits
- Three modes of protection (L-G, L-L, L-N) effectively safeguard your HVAC equipment and home appliances from power surges.
Drawbacks
- Requires professional installation for optimal performance and safety.
The Intermatic AG3000 offers comprehensive surge protection with advanced TPMOV technology, ensuring reliable defense against power surges that can damage your valuable equipment. Its durable, watertight enclosure is designed for both indoor and outdoor use, making it suitable for a variety of environments. The green LED indicator allows you to easily monitor the protection status, giving you peace of mind that your devices are secure.
However, the need for professional installation may deter some users who prefer a DIY approach. It’s important to consider this if you’re looking for a quick and easy setup.
The Intermatic AG3000 is an ideal choice for homeowners seeking robust protection for their HVAC systems and appliances, especially in areas prone to power surges. With a generous warranty and a solid reputation for reliability, this surge protective device is a practical pick for anyone wanting to safeguard their investments.
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Mars HVAC Surge Protector 83905
Mars 83905 HVAC Surge Protective Device: 12” long, ABS plastic, 2-year warranty.
Benefits
- Easy installation with weatherproof enclosure.
- LED protection indicator for clear status monitoring.
- Installation – Type 1 and 2 (no additional overcurrent device required).
Drawbacks
- No dishwasher-safe parts.
The Mars 83905 HVAC Surge Protective Device is a robust choice for safeguarding your HVAC system from power surges. Its compact design, measuring just 12 inches long, makes it suitable for various installation locations, especially in tight spaces. The durable ABS plastic construction ensures longevity, while the 2-year warranty adds peace of mind.
One of the standout features is its easy installation, which can be accomplished without the need for additional overcurrent devices. The weatherproof enclosure protects the unit from environmental factors, making it ideal for outdoor settings. The LED protection indicator provides a straightforward way to monitor the device’s status, ensuring you are always informed about its operational condition.
However, it is important to note that there are no dishwasher-safe parts, which may require careful handling during maintenance. Overall, the Mars 83905 is a practical pick for small spaces and offers essential protection for your HVAC system against surges, making it a wise investment for homeowners and professionals alike.
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DITEK Surge Arrestor, NEMA 4X, 120/240VAC
DITEK DTK-120/240CM+ Surge Arrestor: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The DITEK DTK-120/240CM+ Surge Arrestor is designed to provide reliable surge protection for HVAC systems. With its robust ABS plastic construction, it promises durability in various environments. The compact 12” design makes it easy to install in tight spaces while maintaining functionality.
One of the standout features of this surge arrestor is its ability to handle up to 5L without tipping, ensuring stability during operation. This is particularly beneficial for users who need a dependable protector for their equipment, especially in commercial settings where power surges can cause significant damage.
However, it’s important to note that the device has no dishwasher-safe parts, which may require manual cleaning and maintenance. This could be a minor inconvenience for some users, but the overall performance of the product outweighs this drawback.
This surge arrestor is a practical pick for small spaces where efficient surge protection is essential. Ideal for HVAC professionals and homeowners alike, the DITEK DTK-120/240CM+ offers peace of mind with its UL1449 listing and Type 1 SPD designation. Overall, it’s a solid investment for protecting valuable equipment from electrical surges.
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AG3000 HVAC Surge Protective Device
AG3000 Surge Protective Device: 12” long, ABS plastic, 5-year warranty.
Benefits
- Three modes of protection (L-G, L-L, L-N) to safeguard HVAC systems and home appliances against power surges.
Drawbacks
- No user-replaceable parts for maintenance or repairs.
The AG3000 is a comprehensive surge protective device designed to protect your HVAC systems and home appliances from damaging power surges. Its advanced TPMOV technology eliminates hazardous failure modes associated with standard MOVs, ensuring your devices remain safe. The device features a green LED indicator for easy monitoring, allowing you to verify protection status at a glance.
Constructed from high-quality, UV-resistant ABS plastic, the AG3000 is both watertight and durable, making it suitable for both indoor and outdoor installations. It can hold up to the rigors of various environmental conditions without compromising performance. The 5-year warranty adds peace of mind, assuring users of its reliability.
However, the AG3000 lacks user-replaceable parts, which means any maintenance or repairs must be handled by professionals. This could be a drawback for those who prefer DIY solutions.
The AG3000 is a practical pick for small spaces, providing robust protection without taking up much room. Ideal for homeowners looking to safeguard their valuable electrical systems with minimal hassle.
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AG3000 HVAC Surge Protector with TPMOV
HVAC Surge Protector: 120/240V, TPMOV technology, 5-year warranty.
Benefits
- Protects HVAC equipment from voltage spikes, ensuring longevity.
- 4X waterproof housing withstands harsh weather conditions.
- LED indicator light shows operational status—green for active, red for stopped.
- Two installation modes allow flexibility in setup.
Drawbacks
- No built-in surge protection for non-HVAC appliances.
This HVAC Surge Protector is an excellent choice for homeowners seeking reliable protection for their heating and cooling systems. Its advanced TPMOV technology ensures quick disconnection during voltage surges, significantly reducing the risk of fire and equipment damage. The robust 4X grade housing offers superior durability, making it suitable for outdoor installations where exposure to rain or UV light is a concern.
Installation is straightforward with two options available, allowing users to choose the best fit for their electrical setup. The LED indicator light is a practical feature, providing immediate feedback on the device’s operational status, which adds peace of mind.
However, it is important to note that this surge protector is specifically designed for HVAC systems and does not extend protection to other home appliances. Overall, this product is a practical pick for small spaces where HVAC equipment needs reliable surge protection.
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Faq about best hvac surge protector:
1:What is an HVAC surge protector?
An HVAC surge protector is a device designed to protect heating, ventilation, and air conditioning systems from voltage spikes and surges, preventing damage to sensitive components.
2:Why do I need a surge protector for my HVAC system?
A surge protector safeguards your HVAC system from power surges caused by lightning strikes, power outages, or electrical malfunctions, ensuring longevity and reliability.
3:How do I choose the best HVAC surge protector?
Look for surge protectors with a high joule rating, compatibility with your HVAC system, and features like LED indicators and warranty coverage for optimal protection.
4:Can I install an HVAC surge protector myself?
While some homeowners may install a surge protector, hiring a licensed electrician is recommended to ensure proper installation and compliance with local codes.
5:How much does an HVAC surge protector cost?
Prices for HVAC surge protectors typically range from $50 to $300, depending on the brand, features, and installation costs.
6:What are the signs of a surge-damaged HVAC system?
Signs include frequent system shutdowns, erratic behavior, burnt components, or unusual noises, indicating potential damage from power surges.
Conclusion
The Intermatic AG3000 Universal HVAC Surge Protector stands out for its robust design and comprehensive protection, ensuring the longevity of HVAC systems against voltage spikes. Its universal compatibility enhances its appeal, making it a favored choice among homeowners and professionals alike.
Similarly, the Mars HVAC Surge Protector 83905 excels with its reliable performance and user-friendly installation, providing essential safeguarding for heating and cooling units. Both products exemplify superior engineering, offering peace of mind and operational efficiency in protecting valuable HVAC investments.