Installation Instructions for the ISSUE 2
Z Series Basic Switches PK 80173
Sensing and Control
WARNING
IMPROPER INSTALLATION
• DO NOT USE these products as safety or emergency
stop devices or in any other application where failure
of the product could result in personal injury.
Failure to comply with these instructions could result
in death or serious injury.
CAUTION
SWITCH DAMAGE
• Wiring must be rated to meet or exceed circuitry
requirements.
• Connecting circuitry must not exceed switch rating.
• Wiring connections must be properly secured.
• Do not exceed recommended soldering time or
temperature.
• Do not contact switch housing with soldering device.
• Do not exceed recommended mounting screw
tightening torques.
• Discontinue use if switch has been damaged or cover
removed.
• Do not apply side loads to actuator or exceed specified
travel limits.
• Do not operate or store in areas where corrosive
gases such as hydrogen sulfide are present.
Failure to comply with these instructions may result in
product and/or property damage.
IMPROPER USE
• Do not use in hazardous environments where
flammable or explosive gases or liquids such as
gasoline or thinners, etc., are present.
Failure to comply with these instructions will result in
death or serious injury.
GENERAL INFORMATION
Z Series switches are precision snap-action contact
mechanisms enclosed in molded plastic cases. Switch
actuation triggers the mechanical closure of the
switch’s contacts. A small amount of arcing between the
contacts during contact closure occurs during normal
operation. In order to obtain desired switch
performance, the switch must be chosen based on the
mechanical, electrical and environmental conditions of
the application.
Z Series switches are designed for use in a wide
range of applications. Typical applications include:
• Computer mouse
• Tape systems
• Printers
• Copiers
MOUNTING INFORMATION
Switch
Series Screw
Type* Screw
Size Tightening
Torque (max.)
ZX Flat fillister
head 1.9 mm 1.0 kg-cm
[0.9 in-lb]
ZM, ZV,
ZW Flat fillister
head 2.3 mm 3.0 kg-cm
[2.7 in-lb]
*To prevent loosening of screws, use spring washers
under screw heads and thread lock adhesive.
• Position the operating device perpendicular to the
actuator/pushbutton to prevent side loading of the switch
actuator or pushbutton.
• Position the operating device so that no force is applied
to the pushbutton/actuator when the switch is in the free
(open) position.
• The operating device should be positioned so that when
the switch is in the operating position it should move the
actuator no less than 70% of the total travel. Setting the
travel position so that less than 70% of the total travel is
used may cause poor contact or welding conditions due
to an insufficient contact switching force.
• The operating device should never force the
actuator/pushbutton to exceed the total travel position.
• For switches with angled terminals, insert an insulator
separator between the switch body and the PC board
(insulator separator thickness 0.2 mm to 0.4 mm [0.008
in to 0.016 in].
WIRING INFORMATION
• Connect wires firmly to terminals.
• Replace wires that have damaged insulation.
• Use properly sized spade terminals.
• Provide strain relief when a potential exists for forces to
be transferred from the lead wires to the switch
terminals.
PIN LOCATION
(1)
COM (3)
NO (2)
NC
Note: The common pin is identifiable by its position on
the end of the switch closest to the actuator/pushbutton.
The normally open and normally closed contact
positions are relative to the common pin, as shown.
SINGLE-POLE, DOUBLE-THROW CIRCUITRY
NC
N0
COM