Datasheet

1
Two-circuit Limit Switch/Long-life Two-circuit Limit Switch
WL-N/WLM-N
Select the Best Two-circuit Switch for the
Operating Environment and Application
from a Wide Range of Models
• A wide selection of models is available, including
General-purpose, Environment-resistant, and Spatter-
prevention Switches.
• Standard-feature gold-clad crossbar contacts provide
high reliability.
Appllicable to either standard loads or microloads.
• Switches with Lever Actuators provide 90° overtravel,
one-side operation, and four-direction head mounting.
• Approved standards: EN/IEC, UL, cUL, and CCC.
Contact your OMRON representative for information on
approved models.
Be sure to read Safety Precautions on page 44 to 48 and
Safety Precautions for All Limit Switches.
Features
Many Variations in Standard Limit Switches
A Wide Range of Models
The series includes includes many different actuators that you select
to match the workpiece shape and motion, and a wide range of Switch
variations, such as models with operation indicators for easier
working and maintenance and models with different types of
connectors.
Select from Six Types of Environment Resistance
The series includes Airtight Switches, Hermetic Switches, Heat-
resistant Switches, Low-temperature Switches, Corrosion-proof
switches, and Weather-proof Switches. You can select the model
based on the onsite environment.
Excellent Performance on Arc Welding Lines or Sites with
Spattering Cutting Powder
Ideal for Welding Sites
These Switches use stainless steel or resin to prevent the adhesion
of spatter.
They can be used to reduce problems caused by zinc power
generated during welding.
Mechanical Endurance of 30 Million Operations
Long-life Models for High-frequency Applications
A mechanical durability of 30 million operations minimum is provided.
The head features a double-seal structure with a head cap and oil
seal.
DPDB Operation
The double-pole, double-break structure ensures circuit braking.
Degree of Protection; IP67
Approved Standards to Aid Export Machines
The Switches are certified for EN/IEC, UL, cUL, and CCC making
them ideal for export machines.
Applicable to Either Standard Loads or Microloads
Standard-feature gold-clad contacts provide high reliability.
The use of a high-contact-pressure crossbar structure also increases
reliability.
Easy to Work With
Downsizing of the built-in switch has increased the space to house the
wiring.
The insulating paper that was often in the way when wiring has been
eliminated.
Nickle-plated steel screws are used for the terminal screws.
The screws adhere to magnetized screwdrivers to prevent dropping and
loosing them.
Models with Connectors to Reduce Wiring
A neon lamp or LED indicates the operating status.
The 3D structure of the lamp cover disperses light so you can check
the operating status from the side.
Standard Switches
Environment-resistant Switches
Spatter-prevention Switches
Long-life Switches
Features Common to All Switches
Load Load
13(NO)
Za
11(NC)
(NO)14
11
12
13
14
(NC)12