Fscc Shallow Depth 1-Gang Cast Device Box | For Use With Threaded Metal Conduit and Imc | Hex-Key Ends Are Square-Cut for a Secure Full-Depth Fit and Maximum Contact With the Hex Socket to Prevent Slippage and Stripping of the Socket | Optional Solid-State Smartspot Indicator Time-Delay for Motor Start-Ups and Transformer Inrush Currents Without Nuisance Opening Current-Limiting for Low Peak Let-Thru Current Rejection-Style Design Prevents Replacement Errors (When Used With RecommeFurbay Electric Supp