3 stage enabling switch
PITenable PILZ

The three-stage enabling switches PITenable are used as manually operated control devices when working in a plant or machine's danger zone, when the effect of safety equipment has to be suspended, e.g. during setup or maintenance.

Safe in three stages : 3-stage enabling switch off-on-off
In stage 1, the switch is not operated. The machine runs with the safety functions activated.
Stage 2 activates the enabling function; the switch is in its middle setting. The machine runs while the protective effect of the movable guards is suspended.
Stage 3 is a protective function which brings the machine to a standstill if the switch is suddenly released or fully depressed. This function protects the operator, should he overreact in a shock situation.