Instruction manual

2. Preparation for Installation
37
Series Model
Current (peak
value)
Time
AX1240S-24P2C 30A
AX1240S-48T2C 15A
For easy operation, it is recommended that the distribution board should be installed in
the same room as the Switch or the adjacent room.
(3) 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.
In addition, if you power on the Switch, it has inrush current listed in
Table 2-6 Inrush
current. Consider measures to prevent voltage reduction of the power supply due to inrush
current.
Turning on the Switch causes an inrush current. Ensure that voltage drop does not
occur in the power facility due to the inrush current. Voltage drops affect not only the
Switch, but also the devices connected to the same electrical power equipment.