2 Installation and connection
2-4 Connecting the AC input
BU5002R/BU3002R/BU3002RH
53
2
Caution
Connect the grounded phase of the AC input power supply to
the G terminal (
) of the unit.
If either of the others are grounded apart from the grounded
phase, connect the grounded phase to the L2 terminal of the
unit.
⚫
If connected differently, it may cause a breakdown of the connected
device.
Connect the AC input terminal of the unit while the external
breaker is turned off. Make sure to attach the input terminal
block cover.
⚫
There is a risk of an electric shock or electric leakage. Also, if the cable is
not fixed with the cover, the terminal connection may be loosened by the
cable's weight, which could cause a fire or smoke.
Notes
When connecting the AC input from a distribution board directly, consult
with a specialist responsible for wiring.
Insert a breaker (double-cutting type) between the unit and the commercial
power supply, and arrange the breaker in a location where it can be operated
easily.
When using BU5002R, as a conforming product of UL standards, using the
AC input plug that is connected at the time of shipment, use in 4660 VA/4200
W or less. If using the unit with a higher capacity, prepare a cable which suit
the capacity, and connect it to a terminal block.
■ Connection procedure
1.
Remove one M3 screw and detach the terminal block cover.
<BU5002R>
<BU3002RH>
