MMA-250
6
• When working outdoors, the wind speed should not exceed 1m/s.
• Front / rear side of the device was located at a distance of not less than 30 cm from the wall, and its left /
right side - at a distance of at least 20 cm; any two devices are installed at a distance of at least 30 cm apart.
Attention!
Do not block the airflow to the fan and ventilation holes.
• When you connect the welding machine to the AC mains voltage of 230V and a frequency of 50 Hz is
necessary to ensure the protection of the socket for connecting the circuit breaker or fuse-link with a current
response corresponding to the maximum current absorbed by the unit. disconnect input power before
installing the fuse.
Features recommended grounding wire and breaker or fuse:
Model
Input voltage
Max input
current
Rated input
current
Cross-section
of ground
cable
Fuse
MMA-250
230 V
48 A
32 A
≥ 4.0 mm
2
63 A
Connection
Connecting the welding cable:
connect welding connector of the electrode holder to output
terminal on the front panel marked "+" and turn it clockwise. Electrode is used for clamping the
electrode.
Connecting the grounding cable:
connect welding connector of the earth clamp to the output
terminal on the front panel marked "-" and turn it clockwise. Ground clamp used to connect the
material to be welded in the welding current circuit.
Connect the earth clamp as close as possible to the welding point. Make sure all connections are
secure and not loose.
Make sure that the voltage, phase, and frequency of power supply match the data specified on the
rating label.
Connect the device to a power source using the power plug. Make sure the plug is firmly
established.
Make sure the case of the device grounded. Ensure that your mains supply is equipped with a
protective earthing conductor.
Turn on the welding machine
Turn on the machine using the switch on the rear panel - the machine starts to work, the fan starts
to cooling.
Power on indicator lights, welding voltage is applied to the output terminals. The device is ready for
use.
Adjust welding current
Turn the current adjustment potentiometer to set the desired welding current.
Summary of Contents for MMA-250
Page 2: ...2 MMA 250 160 50201...
Page 9: ...MMA 250 9 SOLARIS IGBT 230...
Page 10: ...MMA 250 10 10...
Page 11: ...MMA 250 11 1 2 3 4 5 6 7 8 9 10 hot start arc force anti stick...
Page 13: ...MMA 250 13 30 20 30 8 12 230 50 MMA 208 230 48 A 32 A 4 0 mm 2 63 A 3 2 9 8 5 1...
Page 15: ...MMA 250 15 Solaris Solaris U0 U1 X I2 U2 50 IP21S Manual Metal Arc I1max I1eff...