The ZS80 is designed to provide continuous emergency stop control along exposed areas of machinery and conveyors which present hazards tom operator/ maintenance personnel. Unlike E-Stop pushbuttons, emergency cable-pull systems can be actuated at any point along the "trip wire".
The unit features a double-break contact blocks offering a choice of two positive-opening NC contacts and two NO contacts, three positive-opening NC contacts and one NO contact, or four positive- opening NC contacts … which change state when the cable is pulled or goes slack. Thus the switch can be actuated if an operator falls into, is pulled into, or leans on the trip wire.
In addition the unit features an integrated E-Stop pushbutton, a position 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. Its rugged, metal housing and watertight design (IP 67) make them ideal in hostile environments. The units meet EN 418, IEC/EN 60947-5-1, and IEC/EN 60947-5-5, with UL and CSA pending.
Operation
The ZS80 features an axial actuating shaft and double-break 2A-rated contacts with either 2 NC and 2 NO contacts, 3 NC and 1 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 actuating shaft … 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 the equipment cannot be restarted until the cable-pull switch reset has been actuated.
Features & Benefits
- Rugged, corrosion-resistant housing … tolerates hostile environments.
- "Positive-break" NC contacts … assures circuit interruption upon pulling of trip-wire.
- Integrated emergency-stop button … assures complete emergency stop.
- Watertight design … meets IP67 environmental requirements.
- Continuous E-stop protection … for supported spans up to 164 feet (50m).
- Visual position indicator … for ease of installation.
- Lever for reset … and position indication.
- Four contacts in a compact housing … available in three contact configurations.
- Meets rigid safety standards … EN 418, UL/CSA & BG pending.
- Mounting accessories … ease and extend installation.
Typical Applications
The ZS80 is ideal for replacing multiple, discrete E-stop pushbuttons or achieving a continuous, immediately accessible emergency stop … especially where space is limited. Typical applications include conveyor lines, textile machinery, packaging machinery, and transfer lines.
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