10 Best Surge Protector For Ac Unit 2025 in the United States

The EATON CHSPT2ULTRA Ultimate Surge Protection is a compact device that offers effective surge protection for a variety of applications, including offices, restaurants, apartments, hotels, and TVs. One of its primary strengths is its universal connectivity, allowing it to be used with any manufacturer's load center or breaker box, which adds to its versatility.

The high build quality and ease of use are significant advantages, making it a reliable choice for users looking for straightforward installation and operation. The device's compact dimensions (2.38 x 5.25 x 7.5 inches) and light weight (8 ounces) make it easy to handle and install in tight spaces.

The Intermatic Smart Guard IG2240-IMSK surge protector is designed to provide strong and reliable protection for your home’s electrical system, including sensitive appliances like your AC unit. It uses TPMOV technology, which helps absorb and manage power surges effectively, safeguarding your devices. A standout feature is its easy-to-maintain design with replaceable IModules that come with LED lights, offering clear indicators of power and protection status. This means you can quickly check if your surge protector is working properly and replace parts without needing a full unit swap. The included Module Power Switch makes it simple and safe to disconnect power during maintenance, which is convenient for homeowners.

Its sturdy, tamper-proof build and Type 1 enclosure ensure durability and security indoors. The product comes with a UL certification and a $50,000 connected equipment warranty for 10 years, giving you confidence in its protection level. It doesn’t have multiple outlets since it is meant to be installed at the main electrical panel rather than as a plug-in device, which fits well for whole-home surge protection, including AC units.

If you are looking for a surge protector that combines strong protection, easy monitoring, and straightforward maintenance for your AC and other home appliances, this model represents a solid choice.

The Intermatic AG3000 is a high-quality surge protector specifically designed for HVAC systems. One of its standout features is its comprehensive surge protection with three modes (Line-to-Ground, Line-to-Line, and Line-to-Neutral), ensuring that your equipment is shielded from various types of power surges. The advanced TPMOV technology enhances safety by eliminating common failure modes found in standard technologies, which is a significant plus for long-term usage and peace of mind.

With a durable, watertight, and UV-resistant plastic enclosure, it is suitable for both indoor and outdoor installations, protecting your equipment from environmental elements as well. The UL certification to ANSI/UL 1449 4th Edition indicates that it meets high safety standards, further supported by a three-year product warranty and a $7,500 connected equipment warranty. The green LED indicator is a useful feature for easy monitoring, allowing you to quickly verify that your protection is active.

However, it only has one outlet, which might limit its use if you need to protect multiple devices. Additionally, its relatively older release date (2012) might mean missing out on some newer technologies. Nonetheless, the Intermatic AG3000 remains a reliable and well-regarded option for those needing robust surge protection for their HVAC systems.