1-1/4 to 1-1/2 spacing generator lock kit for Cutler Hammer challenger 150A 200A panels 1. Secure Connection: Safely route generator power to any circuit in your home. Avoiding the inconvenience caused by unexpected power outages while ensuring that you can use all your home appliances. 2. Perfect Fit: The generator lock kit perfectly fits Cutler Hammer BR series, CH series 150A and 200A panels, with standard design. 3. Accurate Spacing: Please note that the spacing between the main circuit breaker and the generator circuit breaker is 1-1/4 to 1-1/2 inches. 4. Aluminum Alloy: With exquisite workmanship, the Aluminum alloy generator lock set is very durable for long-term use. 5. Easy Installation: The generator lockout kit provides a 3/16 inch drill bit made of heavy-duty steel that can easily pass through the interrupter panel. Easy to install, no need for additional control boxes or wiring. Specification: Item Type: Generator Lock Set Model: BR-200 Material: Aluminum Alloy How to use: 1. Slide the locking board up and down to switch power 2. Prevent the main circuit breaker and main circuit breaker from being connected at the same time generator circuit breaker 3. The main circuit breaker is connected 4. The generator circuit breaker is closed 5. Slide the locking board up and down to switch power 6. The circuit breaker is in the on state, keeping the main circuit breaker and the generator at the same time 7. Open the main breaker and close the generator breaker Package List: 2 x generator lock piece 3 x nut 3 x screw 1 x drill 2 x cable tie 2 x sticker 1 x user manual