EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38 Length, 5.25 Width 7.5 Height

Installed mine to a Hot box with no issue, via YouTube. No idea if it really works, but lost one thermostat before buying so worth the risk. Be careful if installing yourself.

Lightnings are a problem where I live. After some considerable amount of money lost in demaged stuff, I bought this device and belkin surge protectors for every outlet at home (2800 joules each), including phone line and cable. Since then no more problems. Instilling this device took less than 10 minutes to an expert contractor ( this is not the kind of thing I would recommend anyone to do, leave it to experts, and if I were you, ask also for a check of everything else, from outlets grounded to load centre, etc). You need to know that eventually as any other surge protector it will burn out, it may last 1 or more hits, but still its cheaper to replace this unit than replacing everything else inside. In my opinion every home should have one and its worth the money if you value your stuff, not only from lightings but also from other smaller spikes which are also common that at the end impacts the lifespan of your things too.

Installed by licensed electrician. My electric bill dropped a tiny bit but most importantly, I believe my appliances and electronic devices are better protected from surges.

Easy to install!

Ive had one of these installed at my house for several years and recently installed one for my inlaws in southern Indiana. 4 months ago, we had a lightning strike in our yard and the only damage suffered was the devices connected to the incoming cable TV wire, nothing electrically failed. Around the same time, the inlaws had another lightning strike (they average 2 per year for the past 40 years) and it took out several individual surge suppressors and the microwave which was on raw power. We installed theirs and they got another strike 2 weeks ago. This time, the only damage was the 2 TVs and the satellite receiver, all via the incoming coax. DTV doesnt recommend running their coax through a protector but were going to give that a shot again. At least nothing electrically took a hit.

Installs easily. Took electrician about 10 minutes. Cant say how good the protection is as we havent been hit with a surge but think it will stand up well.

To anyone looking to buy this, be warned that this unit uses #14 (tin-plated copper) STRANDED wire. I bought this, and had several problems... - the wire does not fit securely to the recommended 50-amp breaker, which is designed to accept a #6 wire - the wire is nearly impossible to secure to the neutral and ground buses... it kept twisting and breaking when the set screw was tightened I ended up returning the unit, and bought a Square D HEPD80 instead. It uses #12 SOLID copper wire and installed without issues to the recommended 20A breaker. The specs arent quite as good as the CHSPT2ULTRA on paper (very close, though), but it is a much better unit.

This review will cover installation as I am not aware of there being any discharge recently. I wanted to use this in the main panel, which is outdoor. The instructions are not detailed enough. When you install these type of devices, you need to follow the instructions very closely to still be under the UL umbrella. For outdoor installation, the drawing claims the unit needs to be attached to the side of the panel with a liquid tight washer or facing down attached to the bottom of the panel with a liquid tight conduit. It seems not to allow installing the unit facing up directly into the bottom of the panel. My panel does not have a knock out on the side, and I think I cannot make a knock out without violating the UL listing of the panel as I have not found any panel manual that allows for such a use. Remember, UL listings are all about using a product on the way it is described on the manual which is the way it was tested for the UL listing. If I want to mount it vertically to use one of the knock outs on the bottom, the instructions dont mention which type of tube and fittings to use. The tube is no problem, but the fitting to connect the tube to the unit has to be UL listed for using this way. I have not been able to fine a coupling that is listed for this. I found a metal one that does not fit properly against an o-ring. It pushes the o-ring out. I also found a plastic one that has to be glued to a pipe that actually seems that would work. But I do not know if it is listed for this application. So I was planning to use that setting when I got in the second problem. The instructions ask for avoiding sharp turns and keeping wires as short as possible. Sharp turns might increase impedance. Just think that the energy being dissipated from lightning has a very high dV/dt. So any sharp bend or big loops (the other reason it asks for twisting the wires if possible) will lower the effectiveness of the surge protector. The problem is that they took short wires way to seriously. So one cannot avoid a sharp bend on the conduit and still have wire to go to the breaker.... At the end, I gave up and installed the device on an inner panel. I still need a solution for the outer panel but I guess I will try to solve it in another way.

Its kind of hard to know how to review this. It is attached and active. Its really hard to evaluate the protection it provides, but this seemed like a good price.

Installed easily on the outside of my panel board in my basement. You do need a 2-pole 50 amp breaker in order to install it. Luckily, havent had any kind of surge that has tested the unit. I will update the review if it ever happens.