Datasheet

WL-N/WLM-N
4
Selection Guide
With the WL-N Series, OMRON will combine the switch, Actuator, and wiring method required to build the ideal switch for
your application.
*1. Not all functions can be combined with environment-resistant switches. Refer to the applicable models on the previous page.
*2. Refer to page 29 for information on the construction of Hermetic Switches.
The WL-N Series consists of four basic types: General-purpose, Environment-resistant, Spatter-protec-
tion, and Long-life Switches. WLCA2-N Switches can be used for the most common applications.
Normal
High-temperature
Low-temperature
Outdoors
−10°C +80°C
+5°C
+120°C
−40°C +40°C
Water-resistant to IP67.
Environment Key specifications Models
WL@-N General-purpose
Switches
WLM@-N Long-life Switches
WL@-TH-N Heat-resistant
Switches *1
WL@-TC-N Low-temperature
Switches *1
WL@-P1-NWeather-proof
Switches *1
Water drops and mist Uses an airtight built-in switch. WL@-55-N Airtight Switches *1
WL@-RP-N Corrosion-proof
Switches *1
WL@-S-N Spatter-prevention
Switches
Chemicals and oil
WL@-139-N
Hermetic, Molded-terminal
Switches *1, *2
WL@-RP40-N
Hermetic, Molded-terminal
Switches *1, *2
WL@-140-N
Hermetic, Molded-terminal
Switches *1, *2
WL@-141-N, -145-N
Hermetic, Molded-terminal
Switches *1, *2
(Only the WLCA2
-N , WLG2 -N , and
WLGCA2
-N , can be produced.)
WL@-RP60-N
Hermetic, Molded-terminal
Switches *1, *2
According to Operating Environment
To increase heat resistance, the rubber material (fluorine rubber)
and the plunger material (PEEK) have been changed.
Cables are attached. Uses a general-purpose built-in switch.
The cover screws, case cover, and conduit opening are molded
from epoxy resin to increase the seal.
(The cover cannot be removed.)
Cables are attached. Uses an airtight built-in switch.
The cover screws, case cover, and conduit opening are molded
from epoxy resin to increase the seal.
(The cover cannot be removed.)
Cables are attached. Uses an airtight built-in switch.
The cover screws, case cover, and conduit opening are molded
from epoxy resin to increase the seal.
(The cover cannot be removed.)
Double seal against oil including head cap countermeasure for
cutting chips and an oil seal.
-141: The Head section is molded from epoxy resin;
Head direction cannot be changed.
-145: The Head section is molded from epoxy resin;
Head can be in an
y of 4 directions.
Cables are attached. Uses an airtight built-in switch.
The case cover and conduit opening are molded from epoxy
resin to increase the seal. (The cover cannot be removed.)
The SC connector can be removed, so it is possible to use
flexible conduit for the cable.
To prevent spatter during welding, a heat-resistant resin is used
for the indicator cover and screws and rollers are all made from
stainless steel.
Cables are attached. Uses an airtight built-in switch.
The cover screws, case cover, conduit opening, and head screws
are molded from epoxy resin to increase the seal.
(The cover and head cannot be removed.)
Rubber parts are made from fluorine rubber to increase
resistance to coolant.
Rubber parts are made from epichlorhydrin rubber, which has a
high-tolerance to changes in temperature.
Stainless steel is used for the screws.
Rollers are made of stainless steel to provide superior corrosion
resistance.
Corrosion-proof specifications have been used for the housing,
fluorine rubber has been used for rubber parts, and stainless
steel has been used for screws and nuts (except for the actuator)
to increase resistance to oils, chemicals, and weather.
To increase resistance to cold, epichlorhydrin rubber and other
measures are used.
Ambient operating temperature
Constant water
drops and mist
Coolant
Spattering from
welding
Constant water
drops or splattering
cutting powder
Operating environment