EatonCHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height

Before I installed this in my main panel I had to call an A/C repair man out to the house at least once a year. My A/C has a circuit board on almost all of the components, and it doesn't take much to damage them. Since the install, I've not had to call him out again. It's been about 4 years. Funny how the repair man never recommended anything like this...If you've replaced a breaker before, then you can install this yourself. It's that easy.I wish I found this years ago. I recommend it to all my friends. I would definitely buy it again. It has paid for itself several times over.

Electrical contractor here with 44 years experience. The Ultra2 is one of the best for the price I have used . It does come with some install challenges vs. the "snap-in" style of surge suppressors which never offer as much kVa protection as this unit. Now, on to the entertaining novels I have been reading in the Reviews section. I have to chuckle reading these comments by "Handy Guys" and homeowners. 1st off, I highly recommend against getting inside a live electrical panel UNLESS you have years of experience. I don't let helpers get in them and they are out there every day in the field doing this work with a basic knowledge + understanding of what they are looking at. Even if you "thought" you killed power to the panel, ALWAYS check the "Line" lugs with a voltmeter. Don't know what a Line lug is? Then don't do the job.Next, many of the pics show the breaker powering the surge suppressor in various positions in the panel, such as the middle, or bottom, etc. The guys doing this don't "know" what they are doing. For maximum effectiveness, the breaker powering the surge suppressor, or if it is a "snap-in" surge suppressor, should ALWAYS be placed nearest the incoming Line voltage (just under the panel main breaker, or if a Main Lug Only sub-panel, closest to where the Line lugs are terminated). If you happen to have a meterbase disconnect with breaker spaces, that is the prime location to install the surge suppressor!Next, NO, you are not supposed to add length to the lead wires, especially the neutral. This would be a warranty violation and reduces the effectiveness of your surge suppressor. When the surge suppressor is installed in a proper location closest to the incoming Line voltage, I always cut the neutral wire as short as possible. This is recommended in most install instructions. These 2 aforementioned items many times require you to move breaker positions in the panel, which also requires splicing breaker load wires to create length. Again, if you do not have experience (in the field) of splicing solid copper wire, Don't do it! Improper wire splices are a common cause of over-heating conductors and can cause fires down the line INSIDE YOUR WALL! All of this sound like Chinese? If it does, hire a "Licensed" electrical contractor, verify his license online with your state and have the job done properly, or you are just spinning your wheels!

This is the second one I’ve purchased and installed. It’s a very basic product, and while some people have their doubts about it, I find it gives a good peace of mind. It can be a little challenging to install, especially if you're working with an older breaker panel box that doesn’t offer much room to work with. Surface-mounted boxes provide more flexibility for mounting, which is something to keep in mind. Overall, it gets the job done.

We've heard about other homeowners in our area who have appliances that were damaged due to electrical surges, and they are not covered under warranty. This apparently is not uncommon in southwest Florida. We also previously had our electric supplier install a surge protector at the meter. In talking with technician for that, he indicated that this only covers about 80% of the surges, and to protect the other 20% we should have one within our electrical panel. So... I purchased this item. It appears to be well made and has descriptive installation instructions. I did, however, also check out install videos on YouTube which basically were the same as the provided instructions, but I wanted clarity on the difference between the "ground" and the "common" within the power panel. After that the install took about 30 minutes and appears to be working as designed. If you have expensive appliances and/or sensitive electronics within your home or business - this is the way to go to protect your investment.

Basically happy with the unit. It’s a good size for my application, but the wires were too short (I understand the reason for short wires, but they need to reach). I also don’t believe the unit is suitable for outdoor installation. Aside from doubting the water tightness of the unit, I found my green (Unit OK) lights way too dim for outdoor viewing. It’s OK indoors, but not great.

Product was shipped on time, exactly as stated on the Amazon page. Item worked perfectly.