11
VUT EH
VUT EH
POWER MAINS CONNECTION
VUT 350..600 EH units must be connected to single-phase 230 / 50 Hz AC mains. VUT 800..2000 EH units must be connected to three-
phase 400 V / 50 Hz AC mains depending on the unit type (see Table 3 and Fig. 8). The connection must be made using durable, insulated
and heat-resistant conductors (cables and wires) of appropriate section (see Table 4).
The above conductor cross sections are for reference only. The conductor section selection shall account for the wire type, maximum
permissible wire heating, insulation, length and installation method.
Use only copper core wires. The unit must be properly grounded.
The unit shall be connected to power mains on the terminal block mounted inside the terminal block (VUT 350..600 EH) or inside
the control unit (VUT 800..2000 EH) in accordance with the external connections diagram and terminal designations. All the control and
power wires must be connected according to the terminal markings and the electric polarity!
The unit must be connected to the power mains via an automatic circuit breaker with a magnetic breaker integrated into the house
cabling . The trip current shall be at least equal to the rated current consumption of the unit (see Table 3 and 4).
Fig. 8. Unit wiring diagrams
L
N
X1
1
2
3
N
L
QF
PE
~230 V
50 Hz
Unit
Ɋȿ
5
4
N
N
L2
L1
QF
PE
~400 V
50 Hz
L2
L1
X1
2
1
3
L3
L3
Unit
Ɋȿ
Single-phase mains
(VUT 350… 600 EH)
Three-phase mains
(VUT 800… 2000 EH)
Table 4
Type
Automatic circuit
breaker rated current
Copper-core
cable
VUT 350..600 EH
20 A, single-phase
3 х 2,5 mm
2
VUT 800..1000 EH
20 A, three-phase
5 х 2,5 mm
2
VUT 1500..2000 EH
40 A, three-phase
5 х 4 mm
2
CONNECTION TO POWER MAINS SHALL ONLY BE PERFORMED BY QUALIFIED PERSONNEL AFTER CAREFUL
READING OF THE USER’S MANUAL.
THE UNIT IS INTENDED FOR AC MAINS SUPPLYING THE VOLTAGE COMPLIANT WITH THE TECHNICAL DATA TABLE.
CHECK THE CABLE FOR CHOKING. DO NOT TURN ON THE UNIT IF THE CABLE IS DAMAGED. NEVER UNPLUG THE
UNIT FROM THE SOCKET WITH WET HAND OR BY HOLDING THE ELECTRIC CABLE.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL. ANY
TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID THE WARRANTY.
Содержание VUT 1000 EH
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