New! - Norman Equipment Co.

ZS80 Emergency Cable-Pull Switch (Meets EN 418)New!Features & Benefits• Rugged, corrosion-resistant housing … tolerates hostileenvironments.• “Positive-break” NC contacts … assures circuitinterruption upon pulling of trip-wire.• Push/pull operation … operates if trip-wire is pulled orgoes slack.• Integrated emergency-stop button … assures completeemergency stop.• Watertight design … meets IP67 environmentalrequirements.• Continuous E-stop protection … for supported spans upto 164 feet (50m).• Visual position indicator … for ease of installation.• Lever for reset … and position indication.• Four contacts in a compact housing … available in threecontact configurations.• Meets rigid safety standards … EN 418, UL/CSA & BGpending.• Mounting accessories … ease and extend installation.®DescriptionThe ZS80 is designed to provide continuous emergency stopcontrol along exposed areas of machinery and conveyors whichpresent hazards to operator/maintenance personnel. UnlikeE-Stop pushbuttons, emergency cable-pull systems can beactuated at any point along the “trip wire”.The unit features a double-break contact block offering a choiceof two positive-opening NC contacts and two NO contacts, threepositive-opening NC contacts and one NO contact, or four positive-openingNC contacts … which change state when the cableis pulled or goes slack. Thus the switch can be actuated if anoperator falls into, is pulled into, or leans on the trip wire.In addition the unit features an integrated E-Stop pushbutton, aposition indicator for easier installation, a lever-actuated reset,three cable entries, and an optional signaling lamp.The unit is capable of spanning lengths of up to 50 meters. Itsrugged, metal housing and watertight design (IP 67) make themideal in hostile environments. The units meet EN 418, IEC/EN60947-5-1, and IEC/EN 60947-5-5, with UL and CSA pending.OperationThe ZS80 features an axial actuating shaft and double-break2A-rated contacts with either 2 NC and 2 NO contacts, 3 NC and1 NO contacts, or 4 NC contacts (with trip-wire pre-tensioned).When the trip-wire is pulled, the positive-opening NC contact(s)are forced to open via a direct mechanical linkage with the actuatingshaft … resulting in machine stoppage.If the trip-wire goes slack (e.g. breaks or is cut) the NC contact(s)opens … also resulting in equipment stoppage.The integral lever-actuated reset mechanism assures that theequipment cannot be restarted until the cable-pull switch resethas been actuated.Typical ApplicationsThe ZS80 is ideal for replacing multiple, discreteE-stop pushbuttons or achieving a continuous,immediately accessible emergency stop … especiallywhere space is limited. Typical applications includeconveyor lines, textile machinery, packaging machinery,and transfer lines.122®is a trademark of SCHMERSAL