Overload Cut-Out - Cebora MIG 4540/TS Manual De Instrucciones

EN60974.1 according to these international stan-
dards.
N° serial number, which must always be
indi- cated on any type of request regarding
the welding machine.
three-phase transformer-rectifier.
Flat characteristic.
MIG/MAG. Suitable for continuous electrode welding.
I2 max Unconventional welding current.
This value represents the max. limit
attainable in welding.
U0. Secondary open-circuit voltage.
X. Duty cycle percentage.
The duty cycle expresses the percentage
of 10 minutes during which the welding
machine may run at a certain current
without overheating.
I2. Welding current
U2. Secondary voltage with welding current I2.
U1. Rated supply voltage
3~ 50/60Hz 50- or 60-Hz three-phase power supply.
I1 max Maximum absorbed current value.
I1 eff This is the maximum value of the actual
current absorbed, considering the duty
cycle.
IP21C Protection rating for the housing.
Grade 1 as the second digit means that
this equipment is suitable for use out-
doors in the rain.
The additional letter C means that the
equipment is protected against access to
the live parts of the power supply circuit
by a tool (diameter 2.5 mm).
S
Suitable for use in high-risk environ-
ments.
NOTES: The welding machine has also been designed for
use in environments with a pollution rating of 3. (See IEC
60664).

2.3 Overload cut-out

This machine is protected by a thermostat, which pre-
vents the machine from operating if the allowable tem-
peratures are exceeded. In these conditions the fan con-
tinues to operate and the lamp F lights.
3 INSTALLATION
• Only skilled personnel should install the machine .
• All connections must be carried out according to
current regulations, and in full observance of safety
laws.
Make sure that the supply voltage corresponds to the
value indicated on the power cable. If it is not already fit-
ted, connect a plug suited to the power cable, making
sure that the yellow/green conductor is connected to the
earth pin.
The capacity of the overload cutout switch or fuses
installed in series with the power supply must be equiva-
lent to the absorbed current I1 max. of the machine.
8
3.1 PLACEMENT
Mount the handle, rear wheels and the two cylinder sup-
ports.
The handle must not be used for lifting the welding
machine.
Place the welding machine in a ventilated area.
Dust, dirt, and any other foreign matter entering the weld-
ing machine can interfere with ventilation and thus with
smooth operation.
Therefore, in relation to the environment and working
conditions, it is important to keep the internal parts clean.
Clean using a jet of dry, clean air, being careful to avoid
damaging the machine in any way.
Before working inside the welding machine, make sure it
is unplugged from the power mains.
Any intervention carried out inside the welding
machine must be performed by qualified personnel.
3.1.1 Assembling the cooling unit (optional).
Remove the 2 cylin-
der supports A fas-
tened to the rear
panel B of the weld-
A
ing machine.
Unscrew the 2
knobs C, slide the
mobile cylinder sup-
port D back, mount
the cooling unit sup-
port E on the rear
panel B and screw
the mobile cylinder
support D back in
using the 2 knobs C
on the bottom F of
the welding
machine. (See fig.2).
Fasten the cooling
unit to the support E on the rear panel B and to the base
F. (See fig.3).
fig. 1
E
B
F
C
fig. 2
D