Internationally successful – the EUCHNER company EUCHNER GmbH + Co. KG is a world-leading company in the area of industrial safety technology. EUCHNER has been developing and producing high-quality switching systems for mechanical and systems engineering for more than 60 years. The medium-sized family-operated company based in Leinfelden, Germany, employs Headquarters in Leinfelden-Echterdingen around 800 people around the world. 18 subsidiaries and other sales partners in Germany and abroad work for our international success on the market. Quality and innovation – the EUCHNER products A look...

Enabling Switches General About this catalog Function and technology used in enabling switches Built-in enabling switch ZSE / ZXE Enabling switch ZSM Enabling switch ZSA / ZSB / ZSR Enabling switch ZSA (housing G1) Enabling switch ZSB with additional pushbuttons and LEDs (housing G1) Enabling switch ZSR (housing G2) Enabling switch ZSB with additional pushbuttons and LEDs (housing G3) Enabling devices ZSG / ZSA Built-in enabling device ZSG Enabling devices ZSA (housing G1) Kit for enabling switch ZSA (housing G1) Kit for enabling device ZSA (housing G1) Plug connectors and cables Technical data...

General About this catalog The Enabling Switch ZS catalog provides an overview of our two-stage enabling devices and three-stage enabling switches. Due to their robust and ergonomic design, these switches are the right choice for numerous applications. You will find the technical data after the product overview. There is a reference to the page with the related technical data on the pages listing the products. At the front of the catalog, you will find useful information on the topic of enabling switches. You will find the following series and accessories in this catalog: 3-stage enabling switches...

General Standards and approvals Function and technology used in enabling switches Task of enabling switches Enabling switches that are integrated into safety circuits have a safety function. For this reason, they are assessed based on the Machinery Directive and the European standards. The Machinery Directive has been implemented in national law in the EU member states and, as a result, is binding for all manufacturers. Detailed requirements for switches are defined in EN 60947 Part 5‑1 (Lowvoltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements – Electromechanical...

General Function sequence of two-stage enabling device Stage 1 Not actuated If, as in this example, the button on a 3-stage enabling switch is pressed past the actuating point (stage 2) in panic (to stage 3), this not only resets the normally open contacts (NO) but additionally opens the safe positively driven contacts (NC ). The patented switching system ensures that the enabling function does not become active in stage 2 on reset of the pushbutton from stage 3 to stage 1. In this example, enabling is possible only if normally open and positively driven contacts are closed at the same time....

General The following switching contact types are available: Safety in case of faults Along with the possibility of using positively driven contacts and the possible dual-channel layout of the design, the patented connecting cables from EUCHNER provide additional protection on the occurrence of faults. Not only the outer shielding of the cable but also the individual shielding of the cores enables short circuits or cable breaks due to crushing, for example, to be detected by a control system. NO normally open contact NC normally closed contact NC positively driven contact NO/NC three-point switch...

General Enabling switches for installation Identification of switching elements The enabling devices in series ZSG and the enabling switches in series ZSE and ZXE can be integrated into any housings or control panels. As a result, every customer can prepare a customized solution to suit his/ her specific application. The switching elements used in our enabling switches have a numerical designation. A selection of switching elements is available depending on the series. Explanation of symbols and notation Symbols and specific notation related to the switch or the switching contact are used time...

Built-in enabling switch ZSE / ZXE Selection table for built-in enabling switches ZSE and ZXE Design E Built-in version (without cable) Function 3 Tab connector, screw terminal

Built-in Enabling Switch ZSE / ZXE Built-in enabling switches ZSE and ZXE ZSE, 3-stage function Tab connector Dimension drawings 15 f 3-stage function f Dual-channel version f Optionally with 22.5 mm or 30.5 mm installation dimension f Suitable for installation in hand-held pendant stations HBL or housing G2 or G3, for example Wiring diagrams/function sequence Actuating point Enabling Restart protection Restart protection Panic function Panic function Contact open closed closed, enabling Switching elements (see also page 8) f 111 NO + 1 NC 1 + 1 NC f 121 NO + 2 NC 1 + 1 NC f 210 NO + 1 NC 2 f...

Built-in Enabling Switch ZSE / ZXE ZSE, 3-stage function Tab connection, with spacer Dimension drawings Please turn page Panel cut-out Wiring diagrams/function sequence 220 Panic function Restart protection Contact open closed closed, enabling Ordering table Connection With spacer for installation in housing G2 or G3 For technical data, see page 71 Subject to technical modifications; no responsibility is accepted for the accuracy of this informatio

Built-in Enabling Switch ZSE / ZXE ZXE, 3-stage function Screw terminals ZXE, 3-stage function Tab connectors, with click sound 1) ZXE, 3-stage function Screw terminals, with click sound 1) Panel cut-out Panel cut-out For connecting cable, see page 68 Wiring diagrams/function sequence 2202 Panic function Restart protection Contact open closed closed, enabling Ordering table Design Screw terminals Slow-action switching contact Snap-action switching contact Tab connectors Snap-action switching contact 1) With versions ZXE-104833 and ZXE-111276, a click sounds during the change from stage 1 to stage...