Two-circuit Limit Switch/Long-life Two-circuit Limit Switch
WL/WLM
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.
■ Meets EN/IEC standards (only Switches with ground
terminals and pre-wired connectors with DC specifications).
■ Approved by UL, CSA, and CCC (Chinese standard). (Ask
your OMRON representative for information on approved
models.)
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
A Wide Range of Models
DPDB Operation
The double-pole, double-break structure ensures circuit braking.
The WL Series provides a complete range of Limit Switches with a
long history of meeting user needs. Select environment-resistant
specifications, actuators for essentially any workpiece, operating
sensitivity matched to the workpiece, operation indicators to aid
operation and maintenance, and various wiring specifications.
1
2
4
3
Za
(NO)4
(NC)1
3(NO)
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-
resistant Switches, Low-temperature Switches, Corrosion-proof
switches, and Weather-proof Switches. Select the one required by the
onsite environment.
O-rings, cover seals, and other measures provide a water-proof, drip-
proof structure (IP67).
Approved Standards to Aid Export Machines
Various WL/WLM switches are approved by UL, CSA, TÜV, EN/IEC,
and CCC making them ideal for export machines.
Spatter-prevention Models
High-precision Models Available in All Switch Types;
Ideal for Position Control
Excellent Performance on Arc Welding Lines or Sites with
Spattering Cutting Powder
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
prevent troubles caused by zinc powder generated during welding.
(approx. 5°) and a repeat accuracy that is twice that of basic models.
Operation Indicators for Easier Daily
Inspections*
Long-life Models
Confirm operation with a neon lamp or LED for
easier startup confirmations and maintenance.
Mechanical Endurance of 30 Million Operations
Long-life Models for High-frequency Applications
* Specify the type of operation indicator for general-
Operation
purpose models. Provided on standard models for
indicator
Long life has been achieved by increasing the resistance to friction
and creating better sliding properties in the head mechanism. Greater
visibility is provided when setting with a fluorescent display for setting
the stroke.
spatter-prevention and long-life models.
Models with Connectors Provided with All Switch Types
Reduced wiring with one-touch connection. Connectors that also
make Switch replacement easier are provided with direct-wired and
prewired models).
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
http://www.ia.omron.com/
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