F-118
Enclosed Switch
ZC-
@55
Precautions
■
Correct Use
Dog Angle
When operating the roller type, be sure to set the dog angle to less
than 30
°
(even when operating at a low speed). Operating the model
at a dog angle exceeding 30
°
will soon cause abrasion or damage.
Do not apply a twisting force to the plunger. Set the OT to 70% to
100% of the specified value so that the actuator will not exceed the
OT.
Handling
When detaching the Terminal Protective Cover, insert a screwdriver
and apply a force in the opening direction. Do not use excess force to
remove the cover. Doing so may cause deformation in the fitting sec-
tion and reduce the holding force.
When mounting the Terminal Protective Cover to the case, align the
cover on the case and then press the cover down to mount it firmly. If
the cover is pressed down in an inclined position, rubber packing will
deform and thus affect the sealing capability.
•
A 8.5- to 10.5-dia. cable can be applied as seal rubber for the lead
wire outlet. (Use two- or three-core cable of VCT1.25 mm
2
.)
•
Use weather-proof rubber (chloroprene rubber) as seal rubber for
the ZC-N22(21)55.
Mounting
•
When mounting the Switch with screws on a side surface, fasten
the Switch with M4 screws and use washers, spring washers, etc.,
to ensure secure mounting.
Mounting Holes
•
When mounting the Panel Mount-type Enclosed Switch (ZC-Q55,
ZC-Q2255, or ZC-Q2155) with screws on a side surface, remove
the hexagonal nuts from the actuator.
Mounting Hole Dimensions
Tightening Torque
A loose screw may result in a malfunction. Be sure to tighten each
screw to the proper tightening torque as shown below.
Operation
With the ZC-Q22(21)55, an appropriate OT line is marked on the
plunger. Set the OT so that it is between the two X-surface lines.
Micro-load Applicable Ranges
Using a standard load switch for opening and closing a micro-load
circuit may cause wear on the contacts. Use the switch within the
operating range. (Refer to the diagram below.) Even when using
micro-load models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may cause
the contact surface to become rough, and so decrease life expect-
ancy. Therefore, insert a contact protection circuit where necessary.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability level
of 60% (
λ
60
). The equation
λ
60
= 0.5
×
10
−
6
/operations indicates that
the estimated malfunction rate is less than 1/2,000,000 operations
with a reliability level of 60%.
Screwdriver
Terminal Protective Cover
Rubber packing
Rubber packing
Two, 4.3-dia. or M4 screw holes
No.
Type
Torque
1
Terminal screw
0.78 to 1.18 N·m
2
Panel mounting screw
4.90 to 7.84 N·m
3
Side mounting screw
1.18 to 1.47 N·m
Model
ZC-
@
55-01
ZC-
@
55
Minimum
applicable load
1 mA at 5 VDC
160 mA at 5 VDC
0
14.5
+0.2
dia.
Appropriate OT line
X-surface
30
24
12
5
0
1
10
100
1,000
0.1
100 mA
1 mA
26 mA
0.8 W
100 mA 160 mA
Voltage (VDC)
Operating area for
ZC-
@
55-01 micro-
load models
Operating
area for
ZC-
@
55
standard
models
Current (mA)
Unusable
area
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. C025-E1-09
