44
ENG
Electrical connections
g0300122EN rel. 1.0 - 01.12.2021
9. ELECTRICAL
CONNECTIONS
9.1 Electrical
connections
DANGER:
in accordance with the regulations in force in the country where the humidifi er is installed, the manufacturer
recommends using a suitable circuit breaker to protect against overload and overcurrent upstream of the humidifi er’s power
line. The installer is responsible for selecting and installing this device (not supplied by the manufacturer).
9.1.1
W
iring requirements
The cables entering the humidifi er must pass through the cable glands on the side (1 - Fig. 9.a) or at the bottom (2 - Fig. 9.a, UL
outdoor versions only).
300090
_
0
1
7
_
R02
1
2
Fig. 9.a
9.1.2
P
ower cable
Before making the electrical connections, disconnect the unit from the mains power supply. Check that the humidifi er’s power
supply voltage corresponds to the rated value shown inside the electrical panel.
230 V/50 Hz version
Run the power and earth wires into the
electrical panel through the tear-resist-
ant cable gland supplied, and connect
the ends to terminals on the DIN rail.
300090_018_R02
G
N
D
L
N
1T 2T 3T 4T 5T 6T 7T 8T 9T 10T 11T 12T 13T 14T
12Z
1S 2S 3S 4S 5S 6S 7S 8S 9S 10S 11S 12S 13S 14S
T
1Y 2Y 3Y 4Y 5Y 6Y 7Y 8Y 9Y
Y
9O
O
S
L1 L2 GND
AL
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
1A 2A 3A 4A
A
AL
AL
AL
O
O
L1
L2
G
N
D
Fig. 9.b
115V/60Hz version
Run the power and earth wires into the elec-
trical panel through the tear-resistant cable
gland supplied, and connect the ends to the
terminals on the DIN rail, connected directly
to the main transformer (primary 115 V, sec-
ondary 230 V).
Notice:
to avoid unwanted interfer-
ence, the power cables should be kept sepa-
rate from the probe signal cables.
300090
_
0
1
9
_
R02
G
N
D
L
N
to
the
transformer
(
c
onne
c
tion
by
Care
l
)
Fig. 9.c
IMPORTANT:
connect the yellow-green wire to the earth terminal (GND).