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ELECTRICAL WIRING
10 ELECTRICAL WIRING
10.1 GENERAL CHECK
1 Ensure that the field-supplied electrical components (main
power switches, circuit breakers, wires, connectors and wire
terminals) have been properly selected according to the
electrical data indicated. Make sure that they comply with
national and regional electrical codes.
2 Electrical connection must be done by professional installers.
3 Make sure that the power supply voltage is within +/-10% of
the rated voltage.
4 Make sure that power supply has an impedance low enough
to warranty not reduce the starting voltage more than 85% of
the rated voltage.
5 Check that the earth wire is securely connected, tagged and
locked in accordance with national and local codes.
6 Connect a fuse of specified capacity.
7 Check periodically the electrical connection tightening
10.2 ELECTRICAL WIRING CONNECTION
The electrical wiring connection between WEH, YUTAKI system controller and the electrical power installation is as follows:
Customer connection:
10.3 WIRE SIZE
Recommended minimum sizes for field provided wires:
Model
Power source
1~ 230V 50 Hz
WEH-6E
3N~ 400V 50 Hz
?
N O T E
•
Follow local codes and regulations when selecting field wires, Circuit Breakers and Earth Leakage Breakers.
•
Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation H05RN-F).
7
PMML0199A rev.4 - 12/2016
Power terminals
Case 1. Power supply:
1~230 V, 50 Hz
Terminal board
Case 2. Power supply:
3N~400 V, 50 Hz
Power source
Max. current
30 A
10 A
!
C A U T I O N
•
Make sure that screws for terminal block are tightly tightened.
•
Protect the wires, pipes, electrical parts, from rats or other small ani-
mals. If not protected, rats should damage unprotected parts, and at
the worst, a fire will occur.
•
Wrap the accessory packing around the wires, to protect the product
from any condensed water and insects. Tightly secure the wires with
the cord clamp inside the unit.
•
Lead the wires avoiding any contact with water piping.
•
Wrap the accessory packing around the wires from system controller
!
D A N G E R
•
Do not connect or adjust any wiring or connections unless the main
power switch is OFF.
•
When there are more than one power switch for ON/OFF, check and
test to ensure that all are turned OFF.
Control terminals
WEH-6H
YUTAKI
S80/M (TB2)
Control cable
cable size
size
EN60 335-1
EN60 335-1
6 mm
0.75 mm
2
2
2.5 mm
0.75 mm
2
2
ELB
CB
(no. poles/A/
mA)
32A
2/40/30
10A
4/40/30
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