TB-200A Thomas and Betts， Challenger and Westinghouse Generator Interlock Kit 150 or 200 amp panels<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Generator Interlock Kit for Thomas and Betts， Challenger， and Westinghouse Panels</li><li>1 to 1 1/8 inch spacing between main and branch breakers</li><li>Met lab listed E113887</li><li>Includes Interlock， Drill bit， labels and generator breaker retainer</li><li>PLEASE Verify panel type by checking second picture</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-Wi4ZiZ3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51f-sNnGicL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51lk31EOaPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/513QlgjvVmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31vfX4lnSxL.jpg" noproxy>