I think this is the block: http://www.idealind.com/products/wire_termination/terminal_blocks_strips/terminal_blocks_intermediate_heavy_duty.jsp
I can't find a link to the box, sorry. It's just a regular blue plastic box the guy at my local electrical supply store had.
I was drilling a hole to mount a replacement over the range microwave. I struck the 220v line running to my range. There was a spark, but the breaker (50a) did not trip. I cut a large hole in the drywall to survey the damage and clearly struck the cable dead center.
Can I cover the sheath...