1.This generator locking device is made of aluminum alloy with anodized surface, which is corrosion resistant and highly rigid. And this generator main circuit breaker interlock switch is insulated and heat insulated, making it safer to use. 2.Compatible Models：The SD200SA generator interlock kit compatible with Square D homeline meter main 150 or 200 amp breaker. Please confirm the model number you need before purchasing this generator lockouts. 3.Safe & Reliable：The interlock switch is manually operated. The main breaker and all other breakers must be closed and the interlock switch is set on and engaged with the generator. Open the main breaker to energize the panel, then open each breaker as needed. In the event of a sudden power failure, the por.
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