A22TK
13
Operating Environment
• This Switch is designed for use indoors.
Using the Switch outdoors may damage it.
• Do not use the Switch where corrosive gases (e.g., H
2
S, SO
2
, NH
3
,
HNO
3
, or CI
2
) are present or in locations subject to high
temperature and humidity. Doing so may result in damage to the
Switch as a result of contact failure or corrosion.
• Do not use the Switch in any of the following locations.
• Locations subject to extreme temperature changes
• Locations subject to high humidity or condensation
• Locations subject to excessive vibration
• Locations where metal dust, processing waste, oil, or chemicals
may enter through the protective door
• Locations subject to detergents, thinners, or other solvents
Storage
• Do not store the Switch where corrosive gases (e.g., H
2
S, SO
2
,
NH
3
, HNO
3
, or Cl
2
) or dust is present, or in locations subject to high
temperature or high humidity.
Mounting
• Do not tighten the mounting ring more than necessary using tools
such as pointed-nose pliers. Doing so will damage the mounting
ring. The tightening torque is 0.98 to 1.96 N·m.
• Recommended panel thickness: 1 to 5 mm.
Mounting the Lock Plate
1. Confirm that the lever on the Mounting Latch is on the side where
the Operation Unit is secured and then insert the protrusion on the
Lock Plate into the hole in the lever on the Mounting Latch.
2. Press the hole on the Lock Plate onto the protrusion on the Mount-
ing Latch until it clicks into place.
After mounting the Lock Plate, check that the lever does not move.
Operating the Key
• When rotating the key to the total travel position or free position,
the operating force must be 1.47 N·m max.
Wiring
• Terminal screws must be Phillips or slotted M3.5 screws with a
square washer.
• The tightening torque is 1.08 to 1.27 N·m.
• Single wires, stranded wires, and crimp terminals can be
connected to the Switch
• Applicable Wiring Materials:
Twisted strands: 2 mm
2
max.
Solid wire: 1.6 mm dia. max.
• After wiring the Switch, maintain an appropriate clearance and
creepage distance.
• Do not pull the lead wires with excessive force. Doing so may
disconnect them.
• The cable cannot be bended repeatedly.
• When bending the cable, provide a bending radius of 45 mm min.
so as not to damage the cable insulation or sheath. Excessive
bending may cause fire or leakage current.
Operating Environment
• The IP65 model is designed with a protective structure so that it
will not sustain damage if it is subjected to water from any direction
to the front of the panel.
• The Switch is intended for indoor use only. Using the Switch
outdoor may cause it to fail.
Using the Microload
Contact failure may occur if a Switch designed for a standard load is
used to switch a microload. Use Switches within the application
ranges shown in the following graph. Even within the application
range, insert a contact protection circuit, if necessary, to prevent the
reduction of life expectancy due to extreme wear on the contacts
caused by loads where inrush current occurs when the contact is
opened and closed.
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) (conforming to JIS C5003).
The equation,
λ
60 = 0.5 x 10
-6
/time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.
Precautions for Correct Use
LOCK
OPEN
Lever
Lock Plate
Mounting Latch
2.
1.
Operation Unit
8 mm max.
16.0 mm max.
20.2 mm max.
8 mm dia. max.
8 mm max.
16.0 mm max.
20.2 mm max.
8 mm dia. max.
Naked Crimp Terminals
Crimp Terminals with
Insulating Sheaths
Microload area
Area of use
Standard
load area
Invalid area
0.1
1
10
100
1,000
10mA
1mA
5
12
24
30
0.16mA
Voltage (V)
1.6mA
100mA
Current (mA)
0
