Just finishing up rewiring my shed and had a quick question on the proper way to wire a safety switch to the compressor. Its a SqD 30A switch with two 30A fuses. Im assuming for 240v white/red on one fuse, black/black on the other, and green/bare to neutral bar. Do I need to bond the neutral bar to the case since its a metal enclosure or do I have to purchase a ground bar kit?