Two-circuit Limit Switch/Long-life Two-circuit Limit Switch WL/WLM CSM WL WLM DS E 17 1 Wide Range of Two-circuit Switches Select One for the Operating Environment/Application A wide selection of models are available, including the overtravel models with greater OT, indicator-equipped models for checking operation, low-temperature models, heat-resistant models, and corrosion-proof models. Microload models are added to the product lineup. Approved standards: EC/IEC, UL, CSA, CCC (Chinese standard). Contact your OMRON representative for information on For the most recent information on models that have been certified for approved models. safety standards, refer to your OMRON website. Be sure to read Safety Precautions on page 39 to 42 and Safety Precautions for All Limit Switches. Features Standard Models Features Common to All Models Many Variations in Standard Limit Switches DPDB Operation A Wide Range of Models The double-pole, double-break structure ensures circuit braking. The WL Series provides a complete range of Limit Switches with a 1 4 long history of meeting user needs. Select environment-resistant 2 3 specifications, actuators for essentially any workpiece, operating Za (NO)4 3(NO) sensitivity matched to the workpiece, operation indicators to aid operation and maintenance, and various wiring specifications. (NC)1 2(NC) Load Load Environment-resistant Models Select from Six Types of Environment Resistance Degree of Protection IP67 The series includes Airtight Switches, Hermetic Switches, Heat- O-rings, cover seals, and other measures provide a water-proof, drip- resistant Switches, Low-temperature Switches, Corrosion-proof proof structure (IP67). switches, and Weather-proof Switches. Select the one required by the Approved Standards to Aid Export Machines onsite environment. Various WL/WLM switches are approved by UL, CSA, TV, EN/IEC, and CCC making them ideal for export machines. Spatter-prevention Models High-precision Models Available in All Switch Types Excellent Performance on Arc Welding Lines or Sites with Spattering Cutting Powder Ideal for Position Control Ideal for Welding Sites High-precision models achieve a very small movement to operation Stainless steel and resins that resist adhesion of spatters are used to (approx. 5) and a repeat accuracy that is twice that of basic models. prevent troubles caused by zinc powder generated during welding. Operation Indicators for Easier Daily Inspections* Long-life Models Confirm operation with a neon lamp or LED for Mechanical Endurance of 30 Million Operations easier startup confirmations and maintenance. Long-life Models for High-frequency Applications * Operation indicators are provided on Indicator- Operation equipped switches, Spatter-prevention Basic Long life has been achieved by increasing the resistance to friction indicator Switches, and Long-life Basic Switches. and creating better sliding properties in the head mechanism. Greater visibility is provided when setting with a fluorescent display for setting Models with Connectors to Reduce Wiring the stroke. Reduce wiring with one-touch connection. Models with direct-wired and prewired connectors that make Switch replacement easier are also available. 1WL/WLM Product Configuration Selection by Purpose Standard-load Switches Selection Points WL Effective for switching loads of 0.1 A, 125 VAC/30 Microload VDC. Switches WL01 General-purpose Standard Basic Switches Switches Selection Points WLC WLH Effective if the overall Overtravel Switches High-sensitivity movement is 80 or 90 Switches when dog angle or WLG deflection is absorbed. 90 Operation Switches WL -2 WL -2N High-precision Selection Points Switches Provide twice the repeat accuracy as Basic Switches. WLGCA2 Effective for positioning in machine tools. Protective Selection Points WLCA32- Effective for protecting the operating status. General- Indicator-equipped Switches: Neon lamps purpose Operation indicators WL - LE Indicator-equipped Switches: Light emitting diodes (LED) Selection Points WL - LD Effective for confirming workpieces passing by on a conveyor or for confirming operation in dark locations. For standard models, add -LE or -LD. (Operation indicators cannot be used with some environment-resistant Direct-wired Switches Sensor I/O connectors WL - LDK Pre-wired Switches Selection Points WL - LD-M1 Effective for reducing wiring work, WL - LD-AGJ /-DGJ WL Series making maintenance easier, and WL - LD-DK1EJ preventing wiring mistakes. Airtight Switches WL -55 Hermetic Switches WL -139 WL -140 WL -141 WL -145 WL -RP40 Environment-resistant WL -RP60 Heat-resistant Switches Selection Points WL -TH Enable selection according to the Low-temperature Switches operating environment: water, oil, WL -TC chemicals, high/low temperatures, etc. Corrosion-proof Switches WL -RP Weather-proof Switches WL -P1 Basic Switches WLCA2- S Microload Switches Spatter-prevention WL01 - S General-purpose Switches WLH2- S Overtravel Switches Selection Points High-sensitivity Switches High-precision Switches Effective for welding sites or spattering WLG2- S WLGCA2- S cutting powder. Basic Switches WLMCA2 General-purpose Switches WLM Series Overtravel Switches WLMH2 Long-life High-sensitivity Switches High-precision Switches Selection Points WLMG2 WLMGCA2 With high mechanical durability of 30 million operations, effective for high-frequency operation. 2