Instruction manual

Safety Information
Safety-3
 Ensure that the capacity for incoming current to the distribution board is
greater than the operating current of the circuit breaker.
Ensure that the capacity for incoming current to the distribution board is greater
than the operating current of the circuit breaker. If it is not, the circuit breaker might
not operate properly in the event of a failure, which could result in fire.
 Ground the Switch.
When connecting the Switch to a 100 V AC power supply, each Switch has at most
3.5 mA of leakage current. To connect a Switch to an AC power supply, always use
a grounded power outlet for the Switch. Using the Switch without grounding could
result in electric shock or failures due to electrical noise.
When connecting the Switch to a 200 V AC power supply, each Switch has at most
5 mA of leakage current. To connect a Switch to an AC power supply, always use a
grounded power outlet for the Switch, and make sure that the power outlet is
grounded to the grounding board of the building. To do this, ask maintenance
personnel or a professional electrician.
Using the Switch without grounding could result in electric shock or failures due to
electrical noise.
The following label is attached to a Switch.
If you use a DC power supply, always connect the ground terminals. Using the
Switch without grounding could result in electric shock or failures due to electrical
noise.
 Connecting and disconnecting a DC power cable must be performed by
a trained technician or maintenance personnel.
Connecting and disconnecting a DC power cable must be performed by a trained
technician or maintenance personnel. Terminal connections are required for
connection of the DC power cable. For this reason, incorrect handling of the DC
power cable could result in fire or electric shock.
 Set the circuit breaker of the power supply facility to OFF before
connecting or disconnecting the DC power cable.
Make sure the circuit breaker of the power supply facility is set to OFF before
connecting or disconnecting the DC power cable. Connecting or disconnecting the
cable with the circuit breaker of the power supply facility set to ON could result in fire
or electric shock.