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
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long history of meeting user needs. Select environment-resistant
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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.
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