Had an inspector try to get me to put in a disco or lockout. He said" someone could build a wall between the panel and the water heater". I didn't comply.Xknob&Tube said:Do I need a switch for an electric water heater (residential) where the panel and breaker for it is 8' away in the same room?
Metallic Clips ?When roughing in houses we put metallic clips on breakers that feed hard wired equipment such as dishwasher and hot water tanks. This provided the lock out means and eliminated disconnect means. They were quick and afforable. This would even apply for HVAC units. I feel commercial equipment is another story.