Generator Safety Switch QYZZRS Generator Interlock Kit,Compatible With Murray Or Murray Breaker Interlock We produce high-quality products to provide safety for you and your family. I Tested the Sieens 200 Ap Interlock Kit - Here's Why It's a Gae... Electricity safety is no smal Generator Interlock Kit for 150 or 200 Amp Panels. 1 1/4Inch Spacing Worry-free after-sales:For whatever reason, you are not satisfied, you can ask for a replacement or a full refund. Package includes:1 interlocking panel, 1 matching drill bit, 3 shoulder screws, 3 hex nuts, 5reminder labels, 2 fixing straps, and installation and use instructions included. Compatible Models: Generator interlock kit compatible with Siemens/Murray 150 or 200 amp panels. The Spacing between main and branch breaker is 7/8 to 1 1/4 inches Compatible models: generator breaker interlock kit Compatible with Siemens/Murray 150 or 200 amp panels. Application scenario:Our kit provides a easy and safe solution when inconvenience caused by unexpected power outages. The Spacing between main and branch breaker is 7/8 to 1 1/4 inches.