Two-circuit Limit Switch
WL-N/WL
Two-circuit limit switches that can be
selected to match the operating
environment and application
• Wide variety of head shapes, including Roller Lever,
Plunger, Flexible Rod, and Fork Lock Lever Switches.
• You can select the optimum actuator shape for the
workpiece shape and movement from a variety of
actuators.
• In addition to general detection, we also have environment
resistant models for harsh environments, sputter resistant
models for welding processes, and long-life models for
high-frequency use.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Be sure to read Safety Precautions on page 62 to 67
and Safety Precautions for All Limit Switches.
Features
General-purpose Switches
A Wide Range of Models
You can select the optimum product for the workpiece shape and
movement from a variety of actuators, including Roller Lever,
Plunger, Flexible Rod, and Fork Lock Lever Switches.
Features Common
DPDB Operation
The two-circuit double-break structure ensures circuit braking.
• Basic/Retention type Switches (WL-N)
11
12
14
13
Za
Environment-resistant Switches
(NO)14
(NC)11
13(NO)
12(NC)
Six environment resistant models are available
Airtight Switches, Hermetic Switches, Heat-resistant Switches, Low-
temperature Switches, Corrosion-proof Switches, and Weather-proof
Switches are available.
Load
Load
• High-sensitivity/High-precision Switches (WL)
You can select the model based on the onsite environment.
1
4
3
2
Spatter-prevention Switches
Ideal for Welding Sites
Uses stainless steel and plastic materials that prevent the adhesion
of spatter.
Za
(NO)4
(NC)1
3(NO)
2(NC)
Load
Load
They can be used to reduce problems caused by zinc power
generated during welding.
Degree of Protection; IP67
Long-life Switches
Models with Connectors to Reduce Wiring
Long-life Models for High-frequency
Applications
A mechanical durability of over 30 million cycles is achieved by
improving slidability and the wear resistance of the head.
A neon lamp or LED indicates the operating status. This makes
startup checks and maintenance easy.
Sensor I/O Connector Models to Match Wiring
Specifications
Direct-wire types and pre-wired types are available for easy
replacement of limit switches.
1