Schmersal
ZQ 700 Pull-wire Emergency Stop Switches

Key Features

  • Compact size … ideal for limited space applications.
  • Rugged, corrosion-resistant housing … tolerates hostile environments.
  • “Positive-break” NC contacts … assures circuit interruption upon pulling of trip-wire.
  • Push/pull operation … operates if trip-wire is pulled or goes slack.
  • Watertight design … meets up to IP67 environmental requirements.
  • Continuous E-stop protection satisfying EN ISO 13850 … for supported spans up to 32.5 feet (10m).
  • Visual position indicator … for ease of installation.
  • Designed to meet the Performance Level requirements of EN ISO 13849-1 and Safety Control Categories of EN 954-1.
  • Mounting accessories … ease and extend installation.

Applications

The ZQ700 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.

Part Numbers

  • ZQ 700-11 - 1NO/1NC
  • ZQ 700-02 - 2NC

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The ZQ700 is designed to provide continuous emergency stop control along exposed areas of machinery and conveyors which present hazards to 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 block offering two contact variations 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.

The unit also features a position indicator for easier installation, and a button reset.

The ZQ700 is capable of spanning lengths of up to 10 meters. Its rugged, Thermoplastic housing and watertight design (up to IP67) make it ideal in hostile environments.

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