ESAB Renegade ET 300iP User manual

Instruction manual
0463 418 101 US 20221013 Valid for: 721-, 742-, 239-xxx-xxxx
ET300iP
Welding power source GTAW 300A

TABLE OF CONTENTS
0463 418 101 © ESAB AB 2022
1SAFETY ....................................................................................................... 4
1.1 Meaning of symbols ............................................................................... 4
1.2 Safety precautions ................................................................................. 4
1.3 User responsibility ................................................................................. 8
2INTRODUCTION.......................................................................................... 11
2.1 Overview ................................................................................................. 11
2.2 Equipment ............................................................................................... 11
3TECHNICAL DATA ...................................................................................... 12
4INSTALLATION............................................................................................ 14
4.1 Location................................................................................................... 14
4.2 Lifting instructions ................................................................................. 14
4.3 Main supply............................................................................................. 15
4.4 Recommended fuse sizes and minimum cable area .......................... 18
5OPERATION ................................................................................................ 20
5.1 Overview ................................................................................................. 20
5.2 Connections and control devices ......................................................... 20
5.3 TIG welding ............................................................................................. 21
5.4 MMA welding........................................................................................... 21
5.5 Connecting welding and return cables ................................................ 21
5.6 Turning the power on/off ....................................................................... 21
5.7 Connect to cooler EC 1000 .................................................................... 22
5.8 Fan control .............................................................................................. 22
5.9 Thermal protection ................................................................................. 23
5.10 Voltage reducing device (VRD) ............................................................. 23
5.11 Remote control ....................................................................................... 23
5.12 USB connection...................................................................................... 23
5.13 Low energy idle state ............................................................................. 23
6CONTROL PANEL....................................................................................... 24
6.1 ET 300iP .................................................................................................. 24
6.1.1 Navigation ............................................................................................ 25
6.2 TIG settings............................................................................................. 26
6.2.1 Hidden TIG functions............................................................................ 27
6.2.2 Measured values .................................................................................. 27
6.3 TIG functions explanation ..................................................................... 27
6.3.1 Foot pedal functions explanation.......................................................... 30
6.4 MMA settings .......................................................................................... 31
6.4.1 Hidden MMA functions ......................................................................... 32
6.4.2 Measured values .................................................................................. 27
6.5 MMA functions explanation................................................................... 32
7MAINTENANCE........................................................................................... 34

TABLE OF CONTENTS
0463 418 101 © ESAB AB 2022
7.1 Routine maintenance ............................................................................. 34
7.2 Cleaning instructions............................................................................. 34
8TROUBLESHOOTING ................................................................................. 38
9ERROR CODES........................................................................................... 39
9.1 Error code descriptions ......................................................................... 39
10 ORDERING SPARE PARTS ........................................................................ 41
DIAGRAM ............................................................................................................ 42
ORDERING NUMBERS....................................................................................... 43
ACCESSORIES ................................................................................................... 44
Rights reserved to alter specifications without notice.

1 SAFETY
0463 418 101 -4- © ESAB AB 2022
1 SAFETY
1.1 Meaning of symbols
As used throughout this manual: Means Attention! Be Alert!
DANGER!
Means immediate hazards which, if not avoided, will result in immediate,
serious personal injury or loss of life.
WARNING!
Means potential hazards which could result in personal injury or loss of life.
CAUTION!
Means hazards which could result in minor personal injury.
WARNING!
Before use, read and understand the instruction manual
and follow all labels, employer's safety practices and
Safety Data Sheets (SDSs).
1.2 Safety precautions
WARNING!
These Safety Precautions are for your protection. They summarize precautionary
information from the references listed in the Additional Safety Information section.
Before performing any installation or operating procedures, be sure to read and follow
the safety precautions listed below as well as all other manuals, material safety data
sheets, labels, etc. Failure to observe Safety Precautions can result in injury or death.
PROTECT YOURSELF AND OTHERS
Some welding, cutting and gouging processes are noisy and require
hearing protection. The arc, like the sun, emits ultraviolet (UV) and
other radiation and can injure the skin and eyes. Hot metal can cause
burns. Training in the proper use of the processes and equipment is
essential to prevent accidents. Therefore:
1. Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes
when welding or watching.
2. Always wear safety glasses with side shields in any work area, even if welding
helmets, face shields and goggles are also required.
3. Use a face shield fitted with the correct filter and cover plates to protect your eyes,
face, neck and ears from sparks and rays of the arc when operating or observing
operations. Warn bystanders not to look at the arc and not to expose themselves to
the rays of the electric-arc or hot metal.
4. Wear flameproof gauntlet-type gloves, heavy long-sleeve shirt, cuffless pants,
high-topped shoes, and a welding helmet or cap for protection, to protect against arc
rays and hot sparks or hot metal. A flameproof apron may also be desirable as
protection against radiated heat and sparks.

1 SAFETY
0463 418 101 -5- © ESAB AB 2022
5. Hot sparks or metal can lodge in rolled up sleeves, trouser cuffs, or pockets. Sleeves
and collars should be kept buttoned and open pockets eliminated from the front of the
clothing.
6. Protect other personnel from arc rays and hot sparks with a suitable non-flammable
partition or curtains.
7. Use goggles over safety glasses when chipping slag or grinding. Chipped slag may be
hot and can fly for long distances. Bystanders should also wear goggles over safety
glasses.
FIRES AND EXPLOSIONS
The heat from flames and arcs can start fires. Hot slag or sparks can
also cause fires and explosions. Therefore:
1. Protect yourself and others from flying sparks and hot metal.
2. Move all combustible materials well away from the work area or cover the materials
with a protective non-flammable covering. Combustible materials include wood, cloth,
sawdust, liquid and gas fuels, solvents, paints, and coating paper, etc.
3. Hot sparks or hot metal can fall through cracks or crevices in floors or wall openings
and cause a hidden smoldering fire or fires on the floor below. Make certain that such
openings are protected from hot sparks and metal.
4. Do not weld, cut, or perform other hot work until the work piece has been completely
cleaned so that there are no substances on the work piece which might produce
flammable or toxic vapors. Do not perform hot work on closed containers, they may
explode.
5. Have fire extinguishing equipment handy for instant use, such as a garden hose,
water pail, sand bucket, or portable fire extinguisher. Be sure you are trained in its
use.
6. Do not use equipment beyond its ratings. For example, an overloaded welding cable
can overheat and create a fire hazard.
7. After completing work, inspect the work area to make sure there are no hot sparks or
hot metal that could cause a fire later. Use fire watchers when necessary.
ELECTRICAL SHOCK
Contact between live electrical parts and earth can cause severe injury
or death. DO NOT use AC welding current in damp areas, if movement
is confined, or if there is danger of falling. Therefore:
1. Be sure the power source frame (chassis) is connected to the earth system of the
input power.
2. Connect the workpiece to a good electrical earth.
3. Connect the work cable to the workpiece. A poor or missing connection can expose
you or others to a fatal shock.
4. Use well-maintained equipment. Replace worn or damaged cables.
5. Keep everything dry, including clothing, work area, cables, torch/electrode holder and
power source.
6. Make sure that all parts of your body are insulated from both the work piece and from
the ground.
7. Do not stand directly on metal or the ground while working in tight quarters or a damp
area; stand on dry boards or an insulating platform and wear rubber-soled shoes.
8. Put on dry, hole-free gloves before turning on the power.
9. Turn off the power, before removing your gloves.
10. Refer to ANSI/ASC Standard Z49.1 for specific grounding recommendations. Do not
mistake the work lead for a earth cable.

1 SAFETY
0463 418 101 -6- © ESAB AB 2022
ELECTRIC AND MAGNETIC FIELDS
May be dangerous. Electric current flowing through any conductor
causes localized Electric and Magnetic Fields (EMF). Welding and
cutting current creates EMF around welding cables and welding
machines. Therefore:
1. Welders having pacemakers should consult their physician before welding. EMF may
interfere with some pacemakers.
2. Exposure to EMF may have other health effects which are unknown.
3. Welders should use the following procedures to minimise exposure to EMF:
a) Route the electrode and work cables together. Secure them with tape when
possible.
b) Never coil the torch or work cable around your body.
c) Do not place your body between the torch and work cables. Route cables on
the same side of your body.
d) Connect the work cable to the workpiece as close as possible to the area being
welded.
e) Keep welding power source and cables as far away from your body as
possible.
FUMES AND GASES
Fumes and gases, can cause discomfort or harm, particularly in
confined spaces. Shielding gases can cause asphyxiation. Therefore:
1. Keep your head out of the fumes. Do not breathe the fumes and gases.
2. Always provide adequate ventilation in the work area by natural or mechanical means.
Do not weld, cut or gouge on materials such as galvanized steel, stainless steel,
copper, zinc, lead beryllium or cadmium unless positive mechanical ventilation is
provided. Do not breathe in the fumes from these materials.
3. Do not operate near degreasing and spraying operations. The heat or arc can react
with chlorinated hydrocarbon vapors to form phosgene, a highly toxic gas, and other
irritant gases.
4. If you develop momentary eye, nose or throat irritation while operating, this is an
indication that the ventilation is not adequate. Stop work and take the necessary steps
to improve ventilation in the work area. Do not continue to operate if physical
discomfort persists.
5. Refer to ANSI/ASC Standard Z49.1 for specific ventilation recommendations.
6. WARNING: This product when used for welding or cutting, produces fumes or gases
that contain chemicals known to the State of California to cause birth defects and in
some cases cancer (California Health & Safety Code §25249.5 et seq.)
CYLINDER HANDLING
Cylinders, if mishandled, can rupture and violently release gas. A
sudden rupture of cylinder valve or relief device can injure or kill.
Therefore:
1. Locate cylinders away from heat, sparks and flames. Never strike an arc on a cylinder.
2. Use the proper gas for the process and use the proper pressure reducing regulator
designed to operate from the compressed gas cylinder. Do not use adapters. Maintain
hoses and fittings in good condition. Follow the manufacturer's operating instructions
for mounting a regulator to a compressed gas cylinder.

1 SAFETY
0463 418 101 -7- © ESAB AB 2022
3. Always secure cylinders in an upright position, by chain or strap, to suitable hand
trucks, undercarriages, benches, wall, post or racks. Never secure cylinders to work
tables or fixtures where they may become part of an electrical circuit.
4. When not in use, keep cylinder valves closed. Have valve protection cap in place if
regulator is not connected. Secure and move cylinders by using suitable hand trucks.
MOVING PARTS
Moving parts, such as fans, rotors and belts can cause
injury. Therefore:
1. Keep all doors, panels, guards, and covers closed and securely in place.
2. Stop the engine or drive systems before installing or connecting a unit.
3. Have only qualified people remove covers for maintenance and troubleshooting as
necessary
4. To prevent accidental starting of equipment during service, disconnect negative (-)
battery cable from battery.
5. Keep hands, hair, loose clothing and tools away from moving parts.
6. Reinstall panels or covers and close doors when service is finished and before
starting engine.
WARNING!
FALLING EQUIPMENT CAN INJURE
• Only use lifting eye to lift unit. Do NOT use running gear, gas cylinders or any
other accessories.
• Use equipment of adequate capacity to lift and support unit.
• If using lift forks to move unit, be sure forks are long enough to extend beyond
opposite side of unit.
• Keep cables and cords away from moving vehicles when working from an
aerial location.
WARNING!
EQUIPMENT MAINTENANCE
Faulty or improperly maintained equipment can cause injury or death.
Therefore:
1. Always have qualified personnel perform the installation, troubleshooting and
maintenance work. Do not perform any electrical work unless you are
qualified to perform such work.
2. Before performing any maintenance work inside a power source, disconnect
the power source from the incoming electrical power.
3. Maintain cables, earthing wire, connections, power cord and power supply in
safe working order. Do not operate any equipment in faulty condition.
4. Do not abuse any equipment or accessories. Keep equipment away from
heat sources such as furnaces, wet conditions such as water puddles, oil or
grease, corrosive atmospheres and inclement weather.
5. Keep all safety devices and cabinet covers in position and in good repair.
6. Use equipment only for its intended purpose. Do not modify it in any manner.

1 SAFETY
0463 418 101 -8- © ESAB AB 2022
CAUTION!
ADDITIONAL SAFETY INFORMATION
For more information on safe practices for electric arc welding and cutting
equipment, ask your supplier for a copy of “Precautions and Safe Practices for
Arc Welding, Cutting and Gouging,” Form 52-529.
The following publications are recommended:
• ANSI/ASC Z49.1 - “Safety in Welding and Cutting”
• AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding”
• AWS C5.6 - “Recommended Practices for Gas Metal Arc welding”
• AWS SP - “Safe practices” - Reprint, Welding Handbook
• ANSI/AWS F4.1 - “Recommended Safe Practices for Welding and Cutting of
Containers That Have Held Hazardous Substances”
• OSHA 29 CFR 1910 - "Safety and health standards"
• CSA W117.2 - "Code for safety in welding and cutting"
• NFPA Standard 51B, “Fire Prevention During Welding, Cutting, and Other Hot
Work"
• CGA Standard P-1, “Precautions for Safe Handling of Compressed Gases in
Cylinders”
• ANSI Z87.1, "Occupational and Educational Personal Eye and Face
Protection Devices"
1.3 User responsibility
Users of ESAB equipment have the ultimate responsibility for ensuring that anyone who
works on or near the equipment observes all the relevant safety precautions. Safety
precautions must meet the requirements that apply to this type of equipment. The following
recommendations should be observed, in addition to the standard regulations that apply to
the workplace.
All work must be carried out by trained personnel well-acquainted with the operation of the
equipment. Incorrect operation of the equipment may lead to hazardous situations, which
could result in injury to the operator and damage to the equipment.
1. Anyone who uses the equipment must be familiar with:
○ its operation
○ the location of emergency stops
○ its function
○ the relevant safety precautions
○ welding and cutting or other applicable operation of the equipment
2. The operator must ensure that:
○ no unauthorized person is within the working area of the equipment when it is
started up
○ no-one is unprotected when the arc is struck or work is started with the
equipment
3. The workplace must:
○ be suitable for the purpose
○ be free from drafts

1 SAFETY
0463 418 101 -9- © ESAB AB 2022
4. Personal safety equipment:
○ Always wear recommended personal safety equipment, such as safety glasses,
flame-proof clothing, safety gloves
○ Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which
could become trapped or cause burns
5. General precautions:
○ Make sure the return cable is connected securely
○ Work on high voltage equipment may only be carried out by a qualified
electrician
○ Appropriate fire extinguishing equipment must be clearly marked and close at
hand
○ Lubrication and maintenance must not be carried out on the equipment during
operation
WARNING!
Arc welding and cutting may cause injury to yourself and others. Take precautions
when welding and cutting.
ELECTRIC SHOCK - Can kill
• Install and ground the unit in accordance with instruction manual.
• Do not touch live electrical parts or electrodes with bare skin, wet gloves,
or wet clothing.
• Insulate yourself from work and ground.
• Ensure your working position is safe
ELECTRIC AND MAGNETIC FIELDS - Pose health risks
• Welders with pacemakers fitted should consult their doctor before welding.
EMF may interfere with some pacemakers.
• Exposure to EMF may have other health effects which are unknown.
• Welders should use the following procedures to minimize exposure to
EMF:
○ Route the electrode and work cables together on the same side of
your body. Secure them with tape when possible. Do not place your
body between the torch and work cables. Never coil the torch or work
cable around your body. Keep the welding power source and cables
as far away from your body as possible.
○ Connect the work cable to the workpiece as close as possible to the
area being welded.
FUMES AND GASES - Can be dangerous to your health
• Keep your head out of the fumes.
• Use ventilation, extraction at the arc, or both, to take fumes and gases
away from your breathing zone and the general area.
ARC RAYS - Can injure eyes and burn skin
• Protect your eyes and body. Use the correct welding screen and filter lens
and wear protective clothing.
• Protect bystanders with suitable screens or curtains.
NOISE - Excessive noise can damage hearing
Protect your ears. Use ear defenders or other hearing protection.

1 SAFETY
0463 418 101 - 10 - © ESAB AB 2022
MOVING PARTS - Can cause injuries
• Keep all doors, panels and covers closed and securely in place. Have only
qualified people remove covers for maintenance and troubleshooting as
necessary. Reinstall panels or covers and close doors when service is
finished and before starting engine.
• Stop engine before installing or connecting unit.
• Keep hands, hair, loose clothing and tools away from moving parts.
FIRE HAZARD
• Sparks (spatter) can cause a fire. Make sure there are no inflammable
materials nearby.
• Do not use on closed containers.
MALFUNCTION - Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
WARNING!
Do not use the power source for thawing frozen pipes.
CAUTION!
This product is solely intended for arc welding.
ESAB has an assortment of welding accessories and personal protection equipment
for purchase. For ordering information, contact your local ESAB dealer or visit us on
our website.

2 INTRODUCTION
0463 418 101 - 11 - © ESAB AB 2022
2 INTRODUCTION
2.1 Overview
The ET300iP is a welding power source intended for GTAW welding and for welding with
covered electrodes (SMAW).
ESAB accessories for the product can be found in the "ACCESSORIES" chapter of
this manual.
2.2 Equipment
The power source is supplied with:
• 9.8 ft (3 m) mains cable (without plug)
•2 × OKC 5O male contact*
•Shoulder strap*
• Instruction manual
• Quick start guide
*Only for ES 300iP with ordering no. 0445 100 921

3 TECHNICAL DATA
0463 418 101 - 12 - © ESAB AB 2022
3 TECHNICAL DATA
ET 300iP
Mains voltage 220–480V ±10%,
3~50/60Hz
220V ±10%, 1~50/60Hz
Primary current
Imax Stick (SMAW) 30.0A 30.0A
Imax GTAW (TIG) 22.0A 20.0A
No-load power demand when in energy-saving mode
Uin 220V 63W, 20W1) 74W, 22W1)
Uin 400V 68W, 22W 1)
Uin 480V 72W, 27W1)
Setting range
Stick (SMAW) 5A / 20V - 300A / 32V 5A / 20V - 200A / 28V
GTAW (TIG) 5A / 10V - 300A / 22V 5A / 10V - 200A / 18V
Permissible load at Stick (SMAW)
40% duty cycle 300A / 32.0V
60% duty cycle 250A / 30.0V
100% duty cycle 200A / 28.0V 200A / 28.0V
Permissible load at GTAW (TIG)
40% duty cycle 300A / 22.0V
60% duty cycle 250A / 20.0V
100% duty cycle 200A / 18.0V 200A / 18.0V
Power factor at maximum current
GTAW (TIG) 0.96 0.98
Stick (SMAW) 0.96 0.99
Apparent power I2at
maximum current
11.6kVA 6.6kVA
Active power I2at maximum
current
11.2kW 6.6kW
Efficiency at maximum current
GTAW (TIG) 83% 83%
Stick (SMAW) 86% 86%
Open-circuit voltage U0
max
48V 48V
Open-circuit voltage U0
max with VRD 35V activated
34V 34V
UPK 12.4kV 12.4kV
Operating temperature +14 to +104°F (-10 to +40°C)
Transportation temperature -4 to +131°F (-20 to +55°C)

3 TECHNICAL DATA
0463 418 101 - 13 - © ESAB AB 2022
ET 300iP
Continual sound pressure
at no-load
< 70db (A)
Dimensions l×w×h 18.1×7.9×12.6in. (460×200×320 mm)
Weight with cooler
without cooler
58.6lb (26.6kg)
37.0lb (16.8kg)
Isolation class transformer F
Enclosure class IP23
Application class
1) From serial number 239-xxx-xxxx
Mains supply, Ssc min
Minimum short circuit power on the network in accordance with IEC 61000-3-12.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or
cut at a certain load without overloading. The duty cycle is valid for 104°F (40°C) or below.
Enclosure class
The IP code indicates the enclosure class, i.e. the degree of protection against penetration
by solid objects or water.
Equipment marked IP23 is intended for indoor and outdoor use.
Application class
The symbol indicates that the power source is designed for use in areas with increased
electrical hazard.

4 INSTALLATION
0463 418 101 - 14 - © ESAB AB 2022
4 INSTALLATION
The installation must be carried out by a professional.
CAUTION!
This product is intended for industrial use. In a domestic environment, this product
may cause radio interference. It is the user's responsibility to take adequate
precautions.
4.1 Location
Position the power source so that its cooling air inlets and outlets are not obstructed.
A. Minimum 200 mm (8 in.)
B. Minimum 200 mm (8 in.)
WARNING!
Secure the equipment - particularly
if the ground is uneven or sloping.
4.2 Lifting instructions
Mechanical lifting must be done with both outer handles.

4 INSTALLATION
0463 418 101 - 15 - © ESAB AB 2022
4.3 Main supply
NOTE!
Mains supply requirements
This equipment complies with IEC 61000-3-12 provided that the short-circuit power
is greater than or equal to Sscmin at the interface point between the user's supply
and the public system. It is the responsibility of the installer or user of the equipment
to ensure, by consultation with the distribution network operator if necessary, that
the equipment is connected only to a supply with a short-circuit power greater than
or equal to Sscmin. Refer to the technical data in the TECHNICAL DATA chapter.
The power source will automatically adjust to the supplied input voltage. Make sure that it is
protected by the correct fuse rating. A protective ground connection must be made, in
accordance with regulations.
1. Rating plate with supply connection
data
Installation of electrical cable
NOTE!
The power source is delivered with a 4×12AWG mains cable which can handle the
rated data given for 3-phase 220–480V mains supply. If other outlet voltages are
required, the power cable can be changed in accordance with local regulations. For
recommendations, see section Recommended fuse sizes and minimum cable area.

4 INSTALLATION
0463 418 101 - 16 - © ESAB AB 2022
1. Remove the side panel.
2. If tightened, release the stopping block (A).
3. If a cable is connected, disconnect all wires, cut the cable tie (C), and remove the
cable.
4. Optional: The fan with foam can now be removed to simplify installation. Note the
direction of the fan (sticker toward the inside).
5. Strip the new wire in accordance with specifications (B).
6. Insert the cable with about 0.4in. (1 cm) of isolation inside the stopping block. Tighten
the stopping block by using 13.3–17.7in.lb (1.5-2Nm) (A).
7. Use two cable ties to fasten the cables (C).
8. Optional: If the fan with foam was removed, it must now be reinstalled. A symbol on
the side of the fan (G) shows the airflow direction.
9. Connect the earth wire (H). A toothed washer should be located closest to the heat
sink. Tighten the screw to a torque of 53.1±5.3in.lb (6.0±0.6Nm).
10. Connect all wires in accordance with illustrations for 1-phase and 3-phase. L3 will only
be used for 3-phase (D). Tighten the screw to a torque of 8.9±1.8in.lb (1.0±0.2Nm).
11. Make sure that the IP shield is correctly mounted on the inside of the side panel (E).
12. Reassemble the side panel (F).
13. Tighten the screws on the side panel with 26.6±2.7in.lb (3±0.3Nm).

4 INSTALLATION
0463 418 101 - 17 - © ESAB AB 2022
3-phase
1-phase
WARNING!
In 1-phase operation the terminal L3 is powered, even though not connected.
Make sure to keep terminal L3 disconnected.

4 INSTALLATION
0463 418 101 - 18 - © ESAB AB 2022
4.4 Recommended fuse sizes and minimum cable area
Recommended fuse sizes and minimum cable area
ET 300iP
3~ 50/60 Hz 1~ 50/60
Hz
Main voltage 220 V 380 V 400 V 415 V 480 V 220 V
Mains cable area 4×4 mm² /
4×12
AWG
4×2.5
mm² /
4×13
AWG
4×2.5
mm² /
4×13
AWG
4×2.5
mm² /
4×13
AWG
4×2.5
mm² /
4×13
AWG
3×6 mm² /
3×10
AWG
Maximal current rating
Imax
MMA 30 A 18 A 17 A 16 A 14 A 30 A
I1eff
MMA 19 A 11 A 11 A 10 A 9 A 30 A
Maximal current rating
Imax
TIG 22 A 13 A 12 A 12 A 10 A 20 A
I1eff
TIG 14 A 8 A 8 A 7 A 7 A 16 A
Fuse
anti-surge
type C MCB
20 A
25 A
16 A
16 A
16 A
16 A
10 A
16 A
10 A
10 A
35 A
32 A

4 INSTALLATION
0463 418 101 - 19 - © ESAB AB 2022
ET 300iP
3~ 50/60 Hz 1~ 50/60
Hz
Main voltage 220 V 380 V 400 V 415 V 480 V 220 V
Maximum
recommended
extension cord length
100 m/
330 ft.
100 m/
330 ft.
100 m/
330 ft.
100 m/
330 ft.
100 m/
330 ft.
100 m/
330 ft.
Minimum
recommended
extension cord size
4×4 mm² /
4×11
AWG
4×4 mm² /
4×11
AWG
4×4 mm² /
4×11
AWG
4×4 mm² /
4×11
AWG
4×4 mm² /
4×11
AWG
3×6 mm² /
3×10
AWG
NOTE!
Different variants of ET300i and ET300iP are certified for different mains voltages.
Always refer to the rating plate for the specification of the power source in use.
NOTE!
The power cable areas and fuse sizes as shown above are in accordance with
Swedish regulations. Use the power source in accordance with the relevant national
regulations.
Supply from power generators
The power source can be supplied from different types of generators. However, some
generators may not provide sufficient power for the welding power source to operate
correctly. Generators with Automatic Voltage Regulation (AVR) or with equivalent or better
type of regulation, with 20 kW rated power, are recommended.

5 OPERATION
0463 418 101 - 20 - © ESAB AB 2022
5 OPERATION
5.1 Overview
General safety regulations for handling the equipment can be found in the chapter
"Safety." Read it before you start using the equipment.
NOTE!
When moving the equipment, use the handle. Never pull the cables.
WARNING!
Electric shock! Do not touch the workpiece or the welding head during operation!
5.2 Connections and control devices
1. User interface, see chapter CONTROL
PANEL.
7. Gas supply input
2. Connection (+): TIG: Return cable
MMA: Welding cable or return cable
8. Mains power supply switch, I/O
3. Gas supply output 9. USB connection
4. TIG torch trigger 10. Connection for cooling unit
5. Connection (-): TIG: torch MMA: Return
cable or welding cable
11. Power cable
6. Connection for remote control unit
(Both digital and analog remote control
units can be used together with the
power source.)