WL-N/WLG
Gener
al-pur
pose Switches
En
vironment-resistant Switches
Spatter-pre
vention Switches
Long-lif
e Switches
Accessor
ies
Saf
ety Precautions
85
Conduit opening preparation
• The connector must be tightened at a suitable tightening torque
(1.77 to 2.16 N). Tightening with excessive torque could damage
the case.
• Select the connector based on the sealed rubber inner diameter for
matching the cable outer diameter. For details, refer to
Accessories (Sold Separately) -
Connector (Conduit size: JIS
B0202G1/2)
on page 76.
• When mounting the connector, use seal tape (not needed if the
connector includes an O-ring) on the threaded section of the
connector to ensure sealing performance.
• To ensure compliance of this Switch with the CSA standards, use
of a waterproof connector compliant with the CSA is
recommended.
• Using an inappropriate connector or assembling Switches
incorrectly (assembly, tightening torque) can result in malfunction,
leakage current, or fire, so be sure to read the connector instruction
manual thoroughly beforehand.
• Even when the connector is assembled and set correctly, the end
of the cable and the inside of the Switch may come in contact. This
can lead to malfunction, leakage current, or fire, so be sure to
protect the end of the cable from splashes of oil or water and
corrosive gases.
• The following wiring is recommended for preventing the entry of
fluids from the conduit opening.
Microload Applications
• The WL-N basic model, WLG high-sensitivity model, and high-
precision model contacts can be used both for standard loads and
microloads, but once a contact has been used to open and close a
load, it can no longer be used for lower loads. Doing so will damage
the contact surface and reduce contact reliability.
• If an inrush current or other sudden load occurs during a switch
operation, the switch will begin to degrade severely which can
result in reduced durability. Use a contact protection circuit if
required.
Operaition indicator
Indicator-equipped switch has contacts and indicator in parallel.
When contacts are open, leakage current flows through the indicator
circuit and may cause load's malfunction. Leakage current may cause
load malfunction (i.e., the load may remain ON). Make sure that the
load operating current is higher than the leakage current. For
countermeasures, refer to technical support on your OMRON
website.
Terminal Plate
By using the Terminal Plate (sold separately), as shown in the
following diagram, the Switch can be used as a single-polarity double-
break switch.
WL-N TERMINAL PLATE
To customers using the WL
@
-2N series model in a side-
mounted configuration
We provide a special mounting plate (sold separately) that features
mounting compatibility when replacing with the WL
@
-2N-N series. If
you use the Mounting Plate, the Switch mounting holes and actuator
position will be compatible. Note: The position of the dog remains
unchanged.
(1) Connector tube
contains internal
stranded wire
(2) Connector tube
contains internal
stranded wire and
external jacket
(3) Connector tube
contains external
jacket
Terminal Plate
Attach the Terminal Plate
so that the “COM” mark is
oriented as shown on the left.
Terminal Plate Mounting Diagram
23
64
30.2
58.7
WL
@
-2N
side-mounted
Replacing a Switch
with the WL
@
-2N-N
Mounting Plate
Set
contents
Plate mounting
bolts (2)
Plate (1)
Switch mounting
bolts (2)
