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BU
2002
RWLG/BU
3002
RWLG/BU
5002
RWLG
2
15
Caution
2-3-2. Connecting a device to the power supply output (AC output terminal block)
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 the unit and the load.
●
In the event of an accident, the power supply to the device can be stopped by pressing the emergency
stop switch.
●
To reduce the risk of fire, connect only to an emergency stop switch (ESD) with a minimum rating of
250V/15A (BU2002RWLG), 250V/20A (BU3002RWLG), or 250V/30A (BU5002RWLG). When the unit is
used in compliance with UL standards or CE marking, follow the National Electrical Code (ANSI/NFPA 70).
●
Install the emergency stop switch where it is easy to operate.
ESD
d
a
o
L
S
P
U
Emergency
Stop Switch
(1) Connect the devices that require backup to the power supply output terminal block of the unit.
Check that one terminal block cover and three M3 screws are included in the accessories.
BU2002RWLG and BU3002RWLG require two M3 screws, and BU5002RWLG requires one M3
screw. (The remaining M3 screws are spares.)
Run the wires to be connected through the hole in the terminal block cover (with cable clamp).
(See Figure 1.)
If you have trouble running the wire through the hole, loosen the cable clamp dial by turning it
counter-clockwise.
Crimp the specified round terminal to the ground wire, and tighten the ground terminal screw. (See
Figure 2.)
Use a flat head screwdriver to loosen the terminal block screws, insert the wire stripped to the
specified length into the terminal block from the bottom at an angle as far as it will go, and then
retighten the terminal block screws. (See Figure 3.)
The wire connected to the G terminal should be longer than the wires connected to L1 and L2.
Refer to Table 1 for wire sizes.
G terminal : Connect the ground wire
L1 terminal : Connect the line
L2 terminal : Connect the neutral line