F-104
Long-life Two-circuit Limit Switch
WLM
@
Models/Ratings
Note: 1.
In the model number,
@
indicates the actuator number. For
example, MCA2, etc.
2.
The default setting is “light-ON when not operating.” Turn the
lamp holder by 180
°
to change the setting to “light-ON when
operating.”
Internal Circuits
Nomenclature
Note:
By changing the direction of the operational plunger, any one of the three operational directions (both sides, left, or right) can be selected.
(Only applicable to the WLMGCA2-
@
.)
Operating
characteristics
Maximum
rated voltage
Leakage
current
Lamp-
equipped
Switch
Lamp-
equipped
cover only
LED
10 to
115 VAC, DC
Approx. 1 mA WL
@
-LD
(See note 1.)
WL-LD
WL-LD
Contact spring
Rectifier stack
Resistance
Constant current diode
Light-emitting diode (LED)
Zener
diode
Operational Plunger
(See note.)
Cover Seal
By using a packing seal as the cover seal, an
optimum squeeze can be obtained and high sealing
properties are assured as well.
Terminal Screws
Four, M4 screws
Cover
Separator
The separator has outstanding insulation
properties and prevents the generation of any
gases which may corrode the internal parts.
Cover Mounting Screw
A Phillips screw is used to ensure ease of use.
Conduit Opening
In addition to level screws which use G 1/2 tube, direct-
wired and pre-wired connectors have been added.
Built-in Switch
Built-in switch with SPST-NO+NC contact form.
Bearing
The bearing smooths the plunger movement.
Shaft Section Seal
By fitting a double seal consisting of an oil seal
and an X-ring to the rotary shaft, even greater
sealing properties are achieved.
Head
The Head can be mounted in any of the
four directions by removing the screws at
the four corners of the Head.
Requires maintenance
(excessive overtravel)
Proper range
Requires maintenance (insufficient overtravel)
Proper range
Requires maintenance (excessive overtravel)
Set Position Marker Plate
The set position is easy to view. The stroke is
indicated in fluorescent color that is visible from
the slit in the rubber cap.
Roller
The roller is made of self-lubricating stainless sintered
and boasts high resistance to wear.
Lever
The lever forged of anti-corrosive aluminium alloy
features high corrosion resistance and outstanding
ruggedness. With roller lever models, the actuator
position can be set anywhere within 360
°
. (The lever
cannot be mounted in the opposite direction.)
Standard Model
Long-life Model
Smooth movement is achieved using
olefin grease. (Standard models use
molybdenum disulfide grease.)
Grease holder
Long-life Model
Standard Model
O-ring
Oil seal
X-ring
Standard Model
Long-life Model
Standard Model
Long-life Model
Sintered
alloy
Stainless steel
+
Hardening
Release Plunger
Hardening method changed for greater abrasion resistance.
Head
Mounting
Screws
Smoother Movement
A grease holder is provided on the shaft to
prevent the grease from running out.
Fluorescent paint
