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7
Iso-K
The fan is rated for connection to single-phase alternating current power
mains 230 V / 50 Hz.
The recommended rated automatic switch trip current for ISO-K fans is
stated in Table 3.
The electric connections must be performed with insulated, durable and
heat-resistant conductors (cables, wires).
The recommended conductor cross section is stated in Table 3.
The wiring diagram for connection of the single-phased fans is shown in
fig. 3. The wiring diagram for connection of the three-phased fans is shown
in fig. 4.
Cut power supply to the fan off by turning the automatic electric switch
QF to OFF position. Take steps to prevent activation of the automatic switch
prior to finishing mounting.
Connection to power mains of the basic fan model with a terminal box
is as follows:
1. Cut off power supply to the fan by turning the automatic switch QF to
OFF position.
2. Remove the screws that fix the terminal box cover and take off the
cover.
3. Route the electric cable to the terminal box through the electric lead-in
and connect the cable wires to the input terminal box in compliance with the
wiring diagram, fig. 3, 4. Fix the cable with nuts. Re-install the terminal box
cover and fix it with screws.
4. Turn the fan on by turning the automatic switch QF to ON position.
CONNECTION TO POWER MAINS
!
WARNING
Read the operation manual prior to any electric installations. Connection of the fan to power mains is allowed by a qualified
electrician only.
The rated electrical parameters of the fan are stated on the rating plate. No modifications of internal connections are
allowed and will result in void warranty.
Connect the fan only to power mains with valid electric standards.
Follow the respective electric standards, safety rules (DIN VDE 0100), TAB der EVUs.
The house cabling system must be equipped with an automatic switch at the external input. Connect the fan to power
mains through the automatic switch. The contact gap on all poles at least 3 mm (VDE 0700 T1 7.12.2 / EN 60335-1).
The automatic switch trip current must be in compliance with the fan current consumption, refer Table 1. Install the
automatic switch to ensure prompt access.
Table 3. Recommended automatic switch trip current and cable cross
section.
Model
Rated automatic
switch trip current
[A]
Recommended cable n x S,
n – wire number;
S – cross section, mm
2
Iso-K 150 4E
2
2 x 1.5
Iso-K 150 4D
1
3 x 1.5
Iso-K 160 4E
2
2 x 1.5
Iso-K 160 4D
1
3 x 1.5
Iso-K 200 4E
8
2 x 1.5
Iso-K 200 4D
3.15
3 x 1.5
Iso-K 250 4E
12.5
2 x 1.5
Iso-K 250 4D
4
3 x 1.5
W1
V1
U1
W2
U2
V2
X1
C1
QF
N
L
~230 V
50 Hz
~380 V / 50 Hz
X1 – fan terminal block
С1 – capacitor
QF – automatic switch (not included into the delivery set)
X1 – fan terminal block
QF – automatic switch
(not included into the delivery set)
W1
V1
U1
W2
U2
V2
X1
QF
L1
L3
L2
W1
V1
U1
W2
U2
V2
X1
C1
QF
N
L
~230 V
50 Hz
~380 V / 50 Hz
X1 – fan terminal block
С1 – capacitor
QF – automatic switch (not included into the delivery set)
X1 – fan terminal block
QF – automatic switch
(not included into the delivery set)
W1
V1
U1
W2
U2
V2
X1
QF
L1
L3
L2
Fig. 3. Wiring diagram for single-phase fans
Fig. 4. Wiring diagram for three-phase fans
Iso-K_v.1(2)-EN.indd 7
10.08.2015 15:21:02
