The Model PC is a rugged compact safety switch that provides a quick positive shut off of dangerous equipment in emergencies or normal operation. It is actuated by cable pulled by endangered personnel. The output contacts of the Model PC can control up to two separate circuits, one for machinery shutdown and one for alarm.
Safety minded operators of conveyors, production lines, elevator equipment, assembly lines, material handling systems, cranes, etc. consider it a must for employee protection. Most states have safety statutes that require these switches on conveyors and related equipment. Amercan National Standard Institute recommends their use in ANSI standard No. ASME B20.1 - 1993-5.11. This ANSI standard will probably soon become part of the William-Steiger Act of 1970- the OSHA act.
Technical Specifications:• The housing is cast aluminum. Optional epoxy coating available.• Single ended units are actuated via a cable pull from one direction, while double-ended units can be actuated from either or both directions.• The unit is mounted on the conveyor by drilling (4) 13/32" diameter holes.• General purpose (weatherproof) units and explosionproof units have (2) 1" NPT conduit openings.• The units have dry, unpowered micro switch(es) rated for 20A @ 120 VAC, 240 VAC, and 480 VAC.• Highly visible red epoxy coated flag arm for quick identification of actuation.• Optional red warning light available for dark or remote locations.• The operating temperature range is -40ºF (-40ºC) to 150ºF (65ºC).• The general-purpose units are rated NEMA 4/4X weatherproof and corrosion-resistant. Explosionproof units are rated NEMA 7/9 for dust ignitionproof and vapor explosion proof. The special dual-rated "D" units are rated NEMA 4 weatherproof and NEMA 9 dust ignitionproof.• The general-purpose controls are IP65 compliant.• Most models are UL listed and CSA certified.
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