Hürner HST 300 HP 2.0 Manuel Utilisateur page 31

H Ü R N E R S c h w e i s s t e c h n i k G m b H
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35325 Mücke, Germany
features or functional parts should be properly repaired
or replaced by an approved service shop.
2.8 Data Interface Cover Cap
The dust cap for the interface has to cover the port during
operation, in order to keep humidity and contaminations
away.
2.9 Power Supply Specifications
2.9.1 Mains Power Supply
Utility suppliers' wiring requirements, occupational safety
rules, applicable standards, and national codes have to be
respected.
When using power distributions on the worksite,
rules for the installation of earth-leakage circuit
Caution
breakers (RCD) have to be respected, and operation
requires an installed breaker.
Generator or mains power fuse protection has to be 16 A
(slow blow). The product has to be protected against rain
and humidity.
2.9.2 Generator Power Supply
The required nominal generator capacity as determined
by the power supply requirement of the largest fitting to
be welded depends on the power supply specifications,
the environment conditions, and the generator type itself
including its control/regulation characteristics.
Nominal output power for a generator 3 phases, 360 -
440 V, 50/60 Hz: 7 kW electronic regulation.
Start the generator first, then connect the welding unit.
The idle voltage should be set to approx. 400 volts. When
turning the generator off, disconnect the welding unit first.
The working output power of the generator de-
creases by about 10% per 1,000 m of altitude.
During the welding process no other device con-
Important
nected to the same generator should be operated.
Version September 2022 HÜRNER HST 300 HP 2.0 User's Manual
7
EN