Electromagnetic Compatibility - ESAB fabricator 141i Service Manual

Supply Voltage
Input Current at Maximum Output
Maximum Recommended Fuse* or Circuit Breaker Rating
*Time Delay Fuse, UL class RK5. Refer to UL248
Maximum Recommended Fuse^ or Circuit Breaker Rating
^Normal Operating , UL class K5. Refer to UL248
Single Phase Generator Requirement
Minimum Recommended Input Cable Size
Maximum Recommended Input Cable Length
Minimum Recommended Grounding Cable Size
NOTE!
Welding arc outs may be experienced if an extension cord is used when STICK welding when operating the
Power Source on 95 VAC due to the lack of DC voltage at the STICK electrode.
Input Power
Each unit incorporates an INRUSH circuit. When the MAIN CIRCUIT SWITCH is turned on, the inrush circuit provides pre-charging for the
input capacitors. A relay in the Main PCB1 will turn on after the input capacitors have charged to operating voltage (after approximately
5 seconds)
NOTE!
Damage to the Main PCB1 could occur if 140V AC or higher is applied to the Primary Power Cord.
Primary Supply
Model Cord Size
(Factory Fitted)
12AWG (3.3mm
Fabricator
141i
10AWG (5mm

3.07 Electromagnetic Compatibility

WARNING
Extra precautions for Electromagnetic Compatibility may be required when this Welding Power Source is
used in a domestic situation.
A. Installation and Use - Users Responsibility
The user is responsible for installing and using the welding equipment according to the manufacturer's instructions. If elec-
tromagnetic disturbances are detected then it shall be the responsibility of the user of the welding equipment to resolve the
situation with the technical assistance of the manufacturer. In some cases this remedial action may be as simple as earthing
the welding circuit, see NOTE below. In other cases it could involve constructing an electromagnetic screen enclosing the
Welding Power Source and the work, complete with associated input filters. In all cases, electromagnetic disturbances shall
be reduced to the point where they are no longer troublesome.
Manual 0-5448
Table 3-2: Electrical Service Guide
Minimum Primary
Current Circuit Size
(Vin/Amps)
) 115V/20A
2
) 115V/30A
2
Table 3-3: Primary Circuit Sizes to Achieve Maximum Current
3-5
ESAB FABRICATOR 141i
50 / 60 Hz Single Phase Supply
115V AC
28.4 Amps
30 Amps
30 Amps
5 KW
12AWG
10ft (3m)
12AWG
Current & Duty Cycle
MIG (GMAW/
STICK (SMAW)
FCAW)
90A@20% 80A@35%
140A@15% 90A@15%
LIFT TIG
(GTAW)
100A@20%
140A@15%
SAFETY AND INSTALLATION