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.
| Manufacturer | Siemens |
|---|---|
| Part Number | ECSBPK01 |
| Item Weight | 2.4 ounces |
| Product Dimensions | 12.9 x 5.1 x 3.6 inches |
| Item model number | ECSBPK01 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Mounting Type | Plug-In Mount |
| Special Features | Portable |
| Batteries Required? | No |
| Warranty Description | 1 year - parts only |
