m 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 could result in
death or serious injury.
m DANGER
IMPROPER USE
DO NOT USE these products in hazardous environments
where flammable or explosive gases or liquids such as
gasoline or thinners, etc., are present.
Failure to comply with these instructions could result in
death or serious injury.
GENERAL INFORMATION
MICRO SWITCH 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
Installation Instructions for the
MICRO SWITCH Z Series Basic Switches
(ZD, ZM, ZM1, ZW, ZX Series)
Safety and Productivity Solutions
Issue 5
PK 80173
MOUNTING INFORMATION
Switch series Screw type* Screw
size
Tightening torque
max.
ZX Pan head 2,0 mm 1,6 kg-cm [1.4 lb-in]
ZM, ZM1, ZW Pan head 2,0 mm 1,6 kg-cm [1.4 lb-in]
ZD Pan head 3,0 mm 4,8 kg-cm [4.2 lb-in]
*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.
SPDT CIRCUITRY
M
