Alaxala AX2400S series, Hardware Instruction Manual

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2. Preparation for Installation
108
When selecting circuit breakers, make sure that they meet the following rating,
considering the input current and inrush current/time.

Breaker rating: 15 AT (for a 15 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 2-17 Inrush current .
Table 2-17 Inrush current
Series Model Current (peak
value) Time
AX2430S DC model 10A 10 ms or less
AX3630S DC model 10A 10 ms or less
NOTE
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 of incoming current to the distribution board should be
larger than the breaker operating current capacity. Otherwise, the breakers cannot
operate properly in case of trouble, which might cause a fire.
NOTE
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 2-17 Inrush
current . Consider measures to prevent voltage reduction of the power supply due to inrush
current.
CAUTION
If you power on the Switch, it has inrush current. Consider measures to prevent
voltage reduction of the power supply due to inrush current. If voltage reduction
occurs, not only the Switch but also other devices connected to the same power
supply are affected.
(4) Providing two power supply systems to the electrical power equipment
Using the optional DC power cable, two power supply systems can be connected and
used.