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2. Installation and connection
● Procedure for connection to BU3002SW output terminal block
Caution
(1) Remove the terminal block cover on the lower right side of the unit’s
rear panel.
(2) Remove the transparent cover.
(3) Connect the units that need to be backed up.
Two-line connection can be made.
1) To turn ON/OFF at the same timing as that of output receptacle A:
L1A terminal: Connect the line
L2 terminal: Connect the neutral line
2) To turn ON/OFF at the same timing as that of output receptacle B:
L1B terminal: Connect the line
L2 terminal: Connect the neutral line
(4) Run the wires to be connected through the hole in the included terminal block cover (with cable
clamp and cable guard tube).
(See Figure 1.)
Connect the ground wire to the G terminal.
Use a Phillips screwdriver to remove the terminal block screws, and connect the wire attached to the
round pressure terminal. (See Figure 2.)
Refer to Table 1 for round pressure terminal sizes.
Figure 1
Table 1
Diameter of screw M5 Screw
Tightening torque 2 Nm(17.7 lb-in)
(5) Cover the terminal block with terminal block cover (with cable clamp) , and fasten the previously
removed screws to the two locations on the upper side of the cover.
Tighten the cable clamp dial to stabilize the wire.(See Figure 3.)
<BU3002SW>
Figure 2
Figure 3
When in use, make sure the output terminal block cover is attached.
Do not turn ON the power switch when it is detached.
● Voltage is applied to the output terminal block when the power switch is ON, which can
result in electric shock.
When connecting a device to the output terminal block, make sure to
include an emergency stop switch (ESD) between them.
● In the event of an accident, the power supply to the device can be stopped by pressing
the emergency stop switch.
● A disconnect switch shall be provided by others for ac output terminal block circuit.
● To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent
protection for 20 amperes rating in accordance with the National Electric Code, ANSI/
NFPA 70.
Caution
ESD
UPS Load
emergency stop
switch (ESD)