Designed to operate in only one position enabling switches causing a stop condition in any other position (in accordance with NFPA 79). In hazardous locations, the safety guard may need to be disabled an enabling switch allows for the machine operation to occur. Euchner offers two position (OFF-ON) (dead-man switch) and three position (OFF-ON-OFF) (live-man switch) versions fixed location styles and handheld. The three position dual channel model conforms to ANSI/RIA R15.06-1999 for Industrial Robots and Robot Systems – Safety Requirements.