Switches & Pilot Devices
Signaling Lights
Relays & Sockets
Timers
Contactors
Terminal Blocks
Circuit Breakers
497
800-262-IDEC
(4332)
•
USA & Canada
ø16mm - LB Series
Switches & Pilot Devices
Safety Precautions
• Turn off the power to the LB series control units before installation, removal,
wiring, maintenance, and inspection. Failure to turn power off may cause
electrical shocks or fire hazard.
• To avoid burning your hand, use the lamp holder tool when replacing
the lamps.
• For wiring, use wires of a proper size to meet voltage and current require-
ments. Solder correctly according to the instructions in “Wiring” and “Notes
on Terminal Cover.” Improper soldering may cause overheating and create a
fire hazard. Also, when using tab terminals, use receptacles of appropriate
size.
Instructions
Wiring
1. Solder the terminals at 350°C within 3 seconds using a 60W soldering iron.
Sn-Ag-Cu type is recommended. When soldering, do not touch the LB series
with the soldering iron. Also ensure that no tensile force is applied to the
terminals. Do not bend the terminal or apply excessive force to the terminal.
2. Use non-corrosive liquid flux.
Terminal Cover
Solder/tab terminal
Insert the terminal cover into the contact block with the TOP markings on the
contact block and the terminal cover in the same direction.
Note: When wiring, insert the lead wires into the terminal cover holes before soldering. After wiring,
terminal covers cannot be installed.
Standard Bezel
Flush Bezel
Operating Environment
• Do not use the LB series where corrosive gases exist or under an environ-
ment exceeding the operating temperature and humidity ranges. Other-
wise, damages due to contact failure or change of surface color may occur.
• Major parts of the switch are plastic. Scratches or damages may occur
when scraped with a sharp object or applied with excessive load or shock.
Note that this may cause operation and appearance failure of the operator
and bezel.
• Adherence of detergent, cutting oil, or special chemicals to the switch
may result in operation failures and appearance failures such as change of
surface color.
Handling
Contacts (micro switch)
When using NC (normally closed) and NO (normally open) contacts of the same
microswitch, avoid connections of different voltages, or connections of different
types of power supplies. Failure to observe this instruction may cause a short-
circuit.
Removing and Installing the Contact Block
1. Turn the locking lever on the contact block in the direction opposite to the
arrow on the housing. Then the contact block can be removed.
2. Insert the contact block with the TOP markings on the contact block and the
operator placed in the same direction. Then lock the units, turning the locking
lever in the direction of the arrow.
locking lever
Panel Mounting
Remove the contact block from the operator. Insert the operator into the panel
cut-out from the front, then install the contact block to the operator.
Standard Bezel
TOP
TOP
Panel
➀
➁
Anti-rotation Ring
Locking Ring
Contact Block
Flush Bezel
TOP
TOP
Panel
➀
Anti-rotation Ring
➁
Locking Ring
Contact Block
Notes on Mounting
Use the optional ring wrench (MT-001) to mount the operator onto the panel.
Tightening torque should not exceed 0.7 N·m. Do not use pliers. Excessive tight-
ening will damage the locking ring.