Residential Electric Door and Gate Operators Commercial-Industrial Trolley type-ceilling, Wall Mounts, B1-Parting, Sliding Doors Electric Operators Waterproof Trolley Type-Ceillling and Jack-Shaft-Wall Mount Explosion-proof Trolley Type-Ceillling and Jack-Shaft-Wall Mount Sliding Gate Electric Operators Swing Gate Electric Operators Trafic control barriers To control of vehicular traffic in private and public parking areas. Rolling &Fire Doors Rolling Service Doors & Fire Doors. Jack Shaft - Wall Mount Accessories Different accessories for your needs Safety Devices Reverse Systems and Sensor Entry-Exit Devices Loop Detectors, Card Reader and more Operating Controls   Modifications   Special applications   Pull Cord Switches 1. Ceiling-mounted pull cord switch in cast iron housing, with normally open contacts. Used for interior installation, such as apartment houses, to activate door operator and open or close door from the seat of your car. Operating voltage: 24V 120V A.C. Part No. 50355 2. Designed for use in rugged industrial applications. A pull on the cord from the seat of your vehicle will cause door to open or close. This switch is ideally suited for loading docks, bus garages or transport terminals. Waterproof cast aluminium housing can be installed outside and has rotating - pivoting CAM to accommodate angle of pull. Operating voltage: 24V 120V A.C. Part No. 50350