This comprehensive guide offers clear, actionable wiring procedures for 2-pin through 6-pin illuminated switches, alongside essential tools, critical safety protocols, rigorous testing methods, compliance with industry standards, and strategic purchasing insights. In the AC circuits common in industrial settings, you'll work with three main wires: Hot Wire: This is your current-carrying conductor, usually black or red. It brings power from the source, through the switch, and out to the load (like a motor, light, or solenoid). This is the wire the switch is. The purpose of this manual is to assist the user in developing safe and eficient procedures for the installation, maintenance and operation of the equipment. For additional information, refer to NEMA Standards Publication PB2. 1 “General Instructions for Proper Handling, Installation, Operation, and. This publication gives you general guidelines for installing an Allen-Bradley industrial automation system that may include programmable controllers, industrial computers, operator-interface terminals, display devices, and communication networks. It contains Kraus & Naimer standard contact arrangements for C-, CA-, CG- and CH-series ca ol tch chart. The following subsections describe and explain these wiring practices.