Version Number: RBM1550-20210414A1
4
2) In order to reduce the working temperature of the machine, it is normal for the fan to continue to rotate for a
few seconds after the power is turned off.
3) During high-strength continuous welding, machine protection may occur. After continuous heat dissipation, the
machine will return to normal, which is normal.
Attached table:
Self-examination of abnormal conditions without response when turning on the machine:
1. The machine's power switch is not turned on.
2. The power input voltage is wrong.
3. The power plug is loose.
4. The internal circuit is loose (due to long-distance transportation, bumps), you need to open the cover and
check the internal connection line.
Part 4: Technical specifications
TYPE
RBM1550D
RBM1550D
RBM1500
Input power voltage (V)
1phase AC110V，50/60Hz
1phase220V，50/60Hz
1phase220V，50/60Hz
Rated input current (A)
45.1
30.6
30.6
Rated power capacity (KVA)
3.5
4.2
4.2
Current adjustment range (A) mig:30-140 mma:30-140 mig:30-175 mma:30-140 mig:30-175 mma:30-140
Welding thickness (mm)
>1.0
>1.0
>1.0
Voltage adjustment range (V)
15-22
15-24
15-24
No-load voltage (V)
55±5
55±5
55±5
Electrode diameter (mm)
0.8/1.0
0.8/1.0
0.8/1.0
Rated duty cycle
60%
60%
60%
Efficiency (%)
85%
85%
85%
Power factor
0.7
0.7
0.7
Protection class
IP21S
IP21S
IP21S
Insulation class
F
F
F
Size (mm)
540*310*350
540*310*350
540*310*350
Weight (Kg)
12.8
12.8
12.8
Part 5: Machine operation guidance.
Tips:
1. Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching;
2. Wear approved safety glasses. Side shields recommended;
3. Use protective screens or barriers to protect others from flash and glare; warn others not to watch the arc;
4. Wear protective clothing made from durable, flame-resistant material(wool and leather) and foot protection;
5. Use approved ear plugs or ear muffs if noise level is high;
6. Never wear contact lenses while welding.
5.1 MMA mode
