Instruction manual

2. Preparation for Installation
39
This type of electrical outlet is available from general contractors for electrical installation.
 Two-pin grounded twist-lock outlet 250 V 10 A or higher
Always use a grounded power outlet for the Switch. Failure to do so might not only
result in electric shock, but it might also introduce unwanted electrical noise that
could cause a Switch failure.
Distribution board
The branch circuit to supply power to the Switch requires circuit breakers or other devices.
When selecting circuit breakers, make sure that they meet the following rating, considering
the input current and inrush current/time.
 Rated breaking capacity: 10AT (for a 10 A circuit) or less
For details about input current of the Switch, see
2.2.1 General installation conditions, and
for details about inrush current and time of the Switch, see
Table 2-9 Inrush current.
Table 2-9 Inrush current
Series Model
Current (peak
value)
Time
AX2200S AX2230S-24T 30A 10 ms or less
AX2230S-24P 30A
AX1200S AX1250S-24T2C 65A
AX1240S-24T2C 30A
AX1240S-24P2C 65A
AX1240S-48T2C 30A
For easy operation, it is recommended that the distribution board should be installed in
the same room as the Switch or the adjacent room.
Conditions for the incoming power to the distribution board
The capacity of electrical current supplied to the distribution board should be larger than
that of the breaker operating current.
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 a fire.
Generally, the breaker operating current is larger than the rated current. Check the
specifications of the circuit breaker.