Key Specification Ratings
Maximum Continuous Operating Voltage (MCOV) – 8/10
Why Did It Earn this Score? – Despite its appearance, the Intermatic Smart Guard IG2240-IMSK is a fairly lightweight unit in terms of surge suppression capabilities. As such, it’s fairly respectable that this model manages to provide industry-standard MCOVs across its four modes of protection. Whether you need a 150-volt MCOV (L-N and N-G) or a 300-volt MCOV (L-G and L-L), this model has you covered.
Voltage Protective Rating (VPR) – 8.5/10
Why Did It Earn this Score? – Because some of Intermatic’s previous models have dropped the ball on this front, we are glad to see that the engineers that designed the Smart Guard IG2240-IMSK did so with differentiated VPRs in mind. 3 out of the 4 protection modes featured on this model include unique VPRs at 700 (N-G), 800 (L-N), and 1,500 volts (L-L and L-G), respectively. As such, this surge protector can really shine when it is being installed by a seasoned user with prior experience managing the volume of electricity transmitted to a home during a surge event.
Mode of Protection – 8.5/10
Why Did It Earn this Score? – Simply put, we couldn’t be more pleased to see a popular model from Intermatic providing all four major modes of protection in a single package. Should you need them, the Intermatic Smart Guard IG2240-IMSK will place L-G, L-L, L-N, and N-G modes all at your disposal. Each of these differentiated modes comes with a different MCOV and VPR as well, allowing you to more efficiently manage your home’s surge protection without needing to install multiple units.
Comparing the Intermatic Smart Guard IG2240-IMSK and the Intermatic IG1240RC3
While flipping through Intermatic’s catalog of current surge protection devices, you may notice that the Intermatic Smart Guard IG2240-IMSK and the Intermatic IG1240RC3 are often listed beside one another. Accordingly, these two models often receive direct comparisons, even though they are noticeably different, both aesthetically and in terms of their performance.
First off, the Intermatic Smart Guard IG2240-IMSK resembles a traditional switch box, both in appearance and in function. The unit itself houses three specialized modules, each of which acts independently but possesses the combined ability to suppress up to 10,000 amps in surge electricity. Each of these modules is designed to be replaced, which in turn allows this model’s TPMOV surge protection technology to meet its full potential time and again.
The Intermatic IG1240RC3, on the other hand, is a standalone unit that is installed beside a traditional fuse box and is capable of managing a whopping 100,000 amps of surge electricity. The Intermatic IG1240RC3 was also engineered for outdoor installations, primarily based on its utilization of a type 3R rainproof enclosure. Even in terms of value, this model’s price tag around $100 makes it more affordable for folks who are willing to accept its diminished 5-year warranty.
Between the two options, the Intermatic IG1240RC3 is the far better option for folks with larger homes or a greater volume of important electronic devices across their home. On the other hand, folks with smaller living spaces may opt for the Intermatic Smart Guard IG2240-IMSK, particularly if they live in an area prone to lightning during rainy seasons.
The Final Verdict
After digging through its features and its specifications, we can conclusively endorse the Intermatic Smart Guard IG2240-IMSK for use in protecting your whole home from electrical surges. While this model’s maximum surge protection capacity is fairly modest, folks who expect to use their new unit for a decade or more will be impressed to see this model’s use of a durable metal enclosure and its inclusion of a 10-year warranty.
Better yet, the Intermatic Smart Guard IG2240-IMSK innovates on the surge suppression technologies used throughout the industry over the past several decades. As such, you’ll be able to count on this module’s modular use of TPMOV surge protection technology to far exceed your performance expectations, regardless of its implementation in Type 1 or Type 2 installation.