MUR-200A Murray or Siemens Generator Interlock Kit 150 amp or 200 amp panels Generator Breaker Interlock for Murray and Siemens 150 or 200 amp panels 1 1/4 spacing between main and branch breakers Met lab listed E113887 Kit includes Interlock, labeling, drill bit and generator breaker retainer strap PLEASE Verify panel type by checking second picture