6
7. Electric wiring.
Construct the earth connection.
All electrical work must be carried out by a suitable qualified electrical
trades-person and in accordance with local supply authority requirements
and associated regulators. The range of working voltage is within ±10%
voltage of power supply.
The unit is to be wired directly from an electrical distribution board either
by a circuit breaker (preferred) or HRC fuse.
Fix power source wiring to control box by using buffer bushing for sensible
force (PG connection or the like). Connect control wiring to control terminal
block through the knockout hole of control box using ordinary bushing.
NOTE: Earth wiring must be connected.
Control module of unit (PRC-8,10,12)
Control module of unit (PRC-32)
Method for connecting electric wire
Please do the wiring after consulting the electric power
company of jurisdiction beforehand in the instruction.
(1) The entire wiring diagram of unit.
a.
b.
c.
d.
e.
Power supply
Main switch/fuse (field supply)
Power supply wiring for unit
unit
f.
g.
Connection wiring for unit /
remote controller
Earth
b
c
g
PE
e
f
In case of PRC-15,20,24,32Y
d
Band for wires
Screw for earth
connection
Terminal block
for power supply
wires
Terminal block for connection wires to
switch box (Field supply) or LCD remote
controller (Option : PAC-204RC)
Control module of unit (PRC-15,20,24)
Band for wires
Screw for earth
connection
Terminal block
for power supply
wires
52C1
51C1
30FZ
30CZ1
30CZ2 FZ
CZ
TCZ
47
TB1
52C2
51C2
Tr
52F2
52F1
Terminal block for connection wires to
switch box (Field supply) or LCD remote
controller (Option : PAC-204RC)
Remote controller
(Option: PAC-204RC)
a
30CZ 30FZ
PRC-8,10 ONLY
CZ
FZ
52F
Tr
52C
TB2
TB1
51C
47
F1
F2
Screw
R washer
Spring washer
T. Lock washer
Connect the earth wiring at earth screw as below.
Earth wiring
F1
F2
Band for wires
Screw for earth
connection
Terminal block
for power supply
wires
52C1
51C1
52C3
51C3
CZ
FZ
30FZ 30CZ1 30CZ2 30CZ3
TCZ1 TCZ2
TB2
TB1
TB2
52C2
51C2
Tr
52F2
52F1
Terminal block for connection wires to
switch box (Field supply) or LCD remote
controller (Option : PAC-204RC)
F1
F2
PRC-15,20 ONLY
