Zenit Powertools MMA-300/2 PROFI, Инструкция по эксплуатации

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5
defrosting pipes.
• To avoid turning over install the
machine on even surface.
Description
1. Positive socket (+) for connecting
cable with electrode holder.
2. Negative socket for (-) for connecting
cable with functional terminal.
3. Potentiometer with a scale. Allows
adjusting welding current.
4. Thermostatic indicator. Indicator is
off when the machine operates normally.
Lit indicator means that temperature
inside the machine is exceeded and the
thermic protection has been activated.
The machine is on but not powered
until normal temperature is reached.
After cooling the machine will start
automatically.
5. Power indicator.
6. «On/Off» switch is on the back panel
of the welding machine.
technical specifications
Model
MMA-300/2
profi
Rated power 7.5 кW
Rated voltage 220-240 V
Rated frequency 50-60 Hz
Current control range 20-300 А
Performance index 85%
Operating cycle* 75%
Power rate 0.93
Electrodes 1.6 - 5.0 mm
Net weight 5.2 kg
*Operating cycle: shows the period,
within which the machine can generate
corresponding current. It is expressed in
%, based on 10 minutes per cycle e.g.:
60% = 6 minutes of operation, 4 minutes
of waiting etc.).
installation place
Install the machine in such a way so that
ventilation openings are not obstructed
(forced circulation). Do not allow
aggressive steam, dust, humidity etc.,
inside the machine.
Fuse nomi-
nal, A
Welding
current, A
Receptacle
capacity, A
Cable sec-
tion, mm
16 130 16 16
20 160 32 16
20 180 32 25
25 200 32 25
Before connecting ensure that voltage,
indicated on the machine nameplate,
complies with the voltage and frequency
of the mains.
connectinG welDinG cables
Any connection to the welding circuit
must be performed when the machine is
disconnected from the supply line.
Welding cable with electrode holder is
connected to the positive pole (+) (see
«Welding»).
Cable with functional terminal is
connected to the negative pole (-), its