Siemens ECSBPK01 Generator Standby Power Mechanical Interlock

Eaton does not make an interlock kit that officially supports the BR1020B100FRNV load center, and the ones they make that might fit anyway will waste an additional two breaker spaces. I saw a few reviews that said this Siemens interlock kit would work with Eaton BR breakers and sure enough it fits the breakers perfectly and works with this load center.

I have been looking for one of these a while now for a critical loads sub panel. I feed it primarily from a large UPS, but also need input for a generator and needed to ensure I can keep inputs isolated. I had contacted seller to ask if it would work on Eaton breakers, ut never got a response back so thought I would give it a try. IT WORKS!This one is supposedly made for Siemens and Murray, but I have confirmed (on my own and with an electrition) it also fits Eaton 2-pole BR series breakers PERFECTLY. The breaker retainer (first goes over breakers to keep them locked together), fits and NOTHING required any modification. It is UL listed as well :-) I did a quick install with cover off while i was finishing some things up. The retainer (triangle plate) should go on first, put the cover on, then lockout bar should be installed once you have the cover back in place.PS- I am not responsible if you light yourself up or burn your house down. My opinions and install methods are my own :-).If this was useful info, please mash the "helpful" button below and thanks

Good quality. Good price.

I purchased this interlock so I could add a sub-panel to my existing system which I could use for standby power with my generator. It works just fine. For me it's set up in the sub-panel with a 60A double-pole "in" from my main load center opposite a 30A double-pole "in" from the 30A inlet on the side of my house for the generator. This interlock prevents both of those breakers from being "on" at the same time. I thoroughly tested trying to get both breakers on at the same time and it was not possible - it works well.The package did include instructions. Some other reviewers have mentioned that this didn’t fit on their breakers. I’m not sure what their setup was, but at first I thought I had the same problem. The flat outer bracket that goes around the outside of both breakers was very tight. I thought that it wouldn’t fit over both breakers like those other reviews mentioned, but all it took was a little muscle. I had to squeeze the breakers together and sort of bash on that bracket with a screwdriver handle, but it went on and at that point the two breakers were locked together very nicely. The rest of the installation was a snap. This interlock does the job if you have the opposite-side double-in setup.

The media could not be loaded. It fits, but I made some modifications: I cut the center out to fit between the GE breakers the space between the GE breakers is 1/4 in smaller , it does its job and works perfect

Usable with 2 Square D Homeline breakers with a little grinding down of the breaker handles. Otherwise they won't engage all the way. Good value compared to other interlocks.

Using 2 Siemens QP breakers, I'd have to use a little 'finesse' or file a bit off an end (rounded both??) to make it slip on/fit. Reading other reviews, I ran down to the box store & picked up an Eaton BR model to replace ONE of the QP breakers (good to read I can use Square Q too, if need be!). After that, nice and easy.Simple install after that. No 'adjustments' required. Both breakers can be OFF and only one can be ON at any one time. Just going to use the label maker to ensure I know WHICH breakers, and how, I can use in the futureGenerator transfer switch on the cheap: DONE.

This is an excellent product for installing generator power into a load center panel. Installing this between the house main breaker and the generator breaker ensures that no back feed will occur when using generator power. Easy to install and works very well.