ES 300i

Welding power source 300 A MMA

Instruction manual

0463 419 101 GB 20180703 Valid for: serial no. 719-, 742-xxx-xxxx
TABLE OF CONTENTS

1 SAFETY ....................................................................................................... 3
1.1 Meaning of symbols ............................................................................... 3
1.2 Safety precautions ................................................................................. 3

2 INTRODUCTION .......................................................................................... 6
2.1 Overview ................................................................................................. 6
2.2 Equipment ............................................................................................... 6

3 TECHNICAL DATA ...................................................................................... 7

4 INSTALLATION............................................................................................ 9
4.1 Location................................................................................................... 9
4.2 Lifting instructions ................................................................................. 9
4.3 Mains supply........................................................................................... 10

5 OPERATION ................................................................................................ 15
5.1 Overview ................................................................................................. 15
5.2 Connections and control devices ........................................................ 15
5.3 Connection of welding and return cables ............................................ 15
5.4 Turning the mains power on/off ............................................................ 16
5.5 Fan control .............................................................................................. 16
5.6 Thermal protection ................................................................................. 16
5.7 Functions and symbols ......................................................................... 16
5.8 Setting panel ........................................................................................... 18
5.8.1 Navigation ............................................................................................ 18
5.9 Remote control ....................................................................................... 18
5.10 USB connection...................................................................................... 19

6 MAINTENANCE ........................................................................................... 20
6.1 Routine maintenance ............................................................................. 20
6.2 Cleaning instruction............................................................................... 20

7 TROUBLESHOOTING ................................................................................. 24
8 ERROR CODES........................................................................................... 25
8.1 Error code descriptions ........................................................................ 25

9 ORDERING SPARE PARTS ....................................................................... 26

DIAGRAM ............................................................................................................ 27
ORDERING NUMBERS ....................................................................................... 28
ACCESSORIES ................................................................................................... 29

Rights reserved to alter specifications without notice.

0463 419 101 © ESAB AB 2018

1 SAFETY

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

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 can
result in injury to the operator and damage to the equipment.
1. Anyone who uses the equipment must be familiar with:
○ its operation
○ location of emergency stops
○ its function
○ relevant safety precautions
○ welding and cutting or other applicable operation of the equipment
2. The operator must ensure that:
○ no unauthorised person is stationed 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

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1 SAFETY

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 can be injurious 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 - Can be dangerous to health
• Welders having pacemakers should consult their physician 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 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 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 earmuffs or other hearing protection.

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1 SAFETY

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 fire. Make sure that 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!

CAUTION!
This product is solely intended for arc welding.

WARNING!
Do not use the power source for thawing frozen pipes.

CAUTION!
Class A equipment is not intended for use in residential
locations where the electrical power is provided by the
public low-voltage supply system. There may be potential
difficulties in ensuring electromagnetic compatibility of class
A equipment in those locations, due to conducted as well
as radiated disturbances.

NOTE!
Dispose of electronic equipment at the recycling
facility!
In observance of European Directive 2012/19/EC on Waste
Electrical and Electronic Equipment and its implementation
in accordance with national law, electrical and/or electronic
equipment that has reached the end of its life must be
disposed of at a recycling facility.
As the person responsible for the equipment, it is your
responsibility to obtain information on approved collection
stations.
For further information contact the nearest ESAB dealer.

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.

0463 419 101 -5- © ESAB AB 2018

2 INTRODUCTION

2 INTRODUCTION
2.1 Overview
The ES 300i is a welding power source intended for welding with coated electrodes (MMA)
and TIG welding.
ESAB accessories for the product can be found in the "ACCESSORIES" chapter of
this manual.

2.2 Equipment
The power source is supplied with:
• instruction manual
• 3 m mains cable without plug

0463 419 101 -6- © ESAB AB 2018

3 TECHNICAL DATA

3 TECHNICAL DATA

ES 300i (0445 100 882)

Mains voltage 220-480 V±10%, 3~ 50/60 Hz 220 V±10%, 1~ 50/60 Hz
Primary current
Imax Stick (SMAW) 32.0 A 29.0 A
Imax GTAW (TIG) 21.0 A 20.0 A
No-load power demand 91 W 91 W1), 74 W2)
when in the energy-saving
mode
Setting range
Stick (SMAW) 5 A / 20 V - 300 A / 32 V 5 A / 20 V - 200 A / 32 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
Apparent power I2 at 11.3 kVA 6.6 kVA
maximum current
Active power I2 at maximum 10.8 kW 6.5 kW
current
Power factor at maximum current
GTAW (TIG) 0.96 0.961), 0.982)
Stick (SMAW) 0.96 0.961), 0.992)
Efficiency at maximum current
Stick (SMAW) 89% 89%1), 87%2)
GTAW (TIG) 85% 85%1), 84%2)
Open-circuit voltage U0 max
VRD 35 V deactivated 48 V 48 V
VRD 35 V activated 32 V1), 34 V2) 32 V1), 34 V2)
Operating temperature -10 to +40 °C (+14 to -10 to +40 °C (+14 to
+104 °F) +104 °F)
Transportation temperature -20 to +55 °C (-4 to +131 °F) -20 to +55 °C (-4 to +131 °F)
Continual sound pressure < 70 db (A) < 70 db (A)
at no-load
Dimensions l × w × h 460x200x320 mm 460x200x320 mm
(18.1x7.9x12.6 in.) (18.1x7.9x12.6 in.)
Weight 15 kg (33 lbs) 15 kg (33 lbs)

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3 TECHNICAL DATA

ES 300i (0445 100 882)

Insulation class transformer F F
Enclosure class IP23 IP23
Application class
1) Serial number 627-xxx-xxxx to 643-xxx-xxxx
2) From serial number 719-xxx-xxxx
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 40 °C / 104 °F, 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.

0463 419 101 -8- © ESAB AB 2018

4 INSTALLATION

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”)

B. Minimum 200 mm (8”)

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.

0463 419 101 -9- © ESAB AB 2018

4 INSTALLATION

4.3 Mains supply

The power source will automatically adjust to the supplied input voltage; make sure it is
protected by the correct fuse rating. A protective earth connection must be made, in
accordance with regulations.

Rating plate with supply connection data

Recommended fuse sizes and minimum cable area ES300

Mains voltage 220 V 3~ 380 V 3~ 400 V 3~ 440 V 3~ 480 V 3~ 220 V 1~ 230 V 1~
50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 60 Hz 60 Hz
Mains cable area 4×2.5 4×2.5 4×2.5 4×2.5
4×4 mm² 3×6 mm² 3×6 mm²
mm² / mm² / mm² / mm² /
/ 4×12 / 3×10 / 3×10
4×15 4×16 4×16 4×16
AWG AWG AWG
AWG AWG AWG AWG
Maximal current
rating Imax
MMA / Stick
(SMAW) 30.2 A 17.0 A 16.0 A 16.0 A 14.0 A 29.0 A 28.0 A
I1eff
MMA / Stick
(SMAW) 18.5 A 11.0 A 10.0 A 10.0 A 9.0 A 29.0 A 28.0 A

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4 INSTALLATION

Recommended fuse sizes and minimum cable area ES300

Mains voltage 220 V 3~ 380 V 3~ 400 V 3~ 440 V 3~ 480 V 3~ 220 V 1~ 230 V 1~
50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 60 Hz 60 Hz
Fuse
anti-surge 20 A 16 A 10 A 10 A 10 A 35 A 35 A
type C MCB 20 A 16 A 16 A 10 A 10 A 35 A 35 A
Maximum
recommended
extension cord 100 m / 100 m / 100 m / 100 m / 100 m / 100 m / 100 m /
length 330 ft 330 ft 330 ft 330 ft 330 ft 330 ft 330 ft
Minimum
recommended 4×4 mm² 4×4 mm² 4×4 mm² 4×4 mm² 4×4 mm² 3×6 mm² 3×6 mm²
extension cord / 4×12 / 4×12 / 4×12 / 4×12 / 4×12 / 3×10 / 3×10
size AWG AWG AWG AWG AWG AWG AWG

NOTE!
Different variants of ES 300i are certified for different mains voltage. Always refer
to the rating plate for the specification of the power source in use.

NOTE!
The mains 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 rated power 20 kW, are recommended.
Installation of mains 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 mains voltage
is required, the mains cable may be changed according to relevant national
regulations. For recommendations, see section Recommended fuse sizes and
minimum cable area.

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4 INSTALLATION

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 at this point be removed to simplify the installation.
Note the direction of the fan (the sticker towards the inside).
5. Strip the new wire according to specification (B).
6. Insert the cable with about 1 cm (0.4 in.) of isolation inside the stopping block. Tighten
the stopping block by using 1.5–2 Nm (13.3–17.7 in. lb) (A).
7. Use two cable ties to fasten the cables (C).
8. Optional: If the fan with foam has been removed it shall now be re-installed. A symbol
on the side of the fan (G) shows the air flow 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 6.0 ±0.6 Nm (53.1 ±5.3 in. lb).
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 1.0 ±0.2 Nm (8.9 ±1.8 in. lb).
11. Ensure 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 3 ±0.3 Nm (26.6 ±2.7 in. lb).

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4 INSTALLATION

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.

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4 INSTALLATION

0463 419 101 - 14 - © ESAB AB 2018

5 OPERATION

5 OPERATION
5.1 Overview
General safety regulations for handling the equipment can be found in the chapter
"Safety". Read it through before you start the equipment.

NOTE!
When moving the equipment use intended 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. Setting panel 5. Mains power supply switch, O/I

2. Positive welding terminal 6. USB connection
3. Negative welding terminal 7. Mains cable
4. Connection for remote control unit

NOTE!
Always use the cover when the USB connection is not in use.

5.3 Connection of welding and return cables

The power source has two outputs, a positive welding terminal (+) and a negative welding
terminal (-), for connecting welding and return cables. The output to which the welding cable
is connected depends on the welding method or type of electrode used.

0463 419 101 - 15 - © ESAB AB 2018

5 OPERATION

Connect the return cable to the other output on the power source. Secure the return cable's
contact clamp to the work piece and ensure that there is good contact between the work
piece and the output for the return cable on the power source.
• For TIG welding, the negative welding terminal (-) is used for the welding torch and the
positive welding terminal (+) is used for the return cable.
• For MMA welding, the welding cable can be connected to the positive welding terminal
(+) or negative welding terminal (-) depending on the type of electrode used. The
connecting polarity is stated on the electrode packaging.

5.4 Turning the mains power on/off

Turn on the mains power by turning switch to the ”I” position.
Turn the unit off by turning the switch to the ”O” position.
Whether the mains power supply is interrupted or the power source is switched off in the
normal manner, weld programs will be stored so that it is available next time the unit is
started.

CAUTION!
Do not turn off the power source during welding (with load).

5.5 Fan control

The power source has an automatic thermal control. The fan continues to run during a few
minutes after welding has stopped while the power source switches to energy-saving mode.
The fan starts again when welding restarts.
During energy-saving mode the fan will start occasionally and run for a few minutes.

5.6 Thermal protection

The power source includes thermal protection against overheating. When
overheating occurs the welding is stopped and overheating indicator on the
panel will be lit and an error message shows in the display. The protection is
automatically reset when the temperature has been sufficiently reduced.

5.7 Functions and symbols

MMA welding
MMA welding may also be referred to as welding with coated electrodes. Striking
the arc melts the electrode, and its coating forms protective slag.

For MMA welding the power source shall be supplemented with:

• welding cable with electrode holder
• return cable with clamp

Soft/Crisp
The arc force function determines how the current changes in response to
variations in arc length during welding. Use a low value (Soft) to get a calm arc
with little spatter and use a high value (Crisp) to get a hot and digging arc.
Soft/Crisp only applies to MMA welding.

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5 OPERATION

Cel 6010
Optimised arc characteristics for cellulosic electrodes such as 6010 and similar.

TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a
tungsten electrode that does not melt. The weld pool and electrode are
protected by shielding gas.
For TIG welding, the welding power source shall be supplemented with:
• a TIG torch with gas valve
• an argon gas cylinder
• an argon gas regulator
• tungsten electrode
This power source performs Live TIG start.
The tungsten electrode is placed against the workpiece. When lifted away from
workpiece the arc is struck at a limited current level.

Voltage Reduction Device (VRD)

The VRD function ensures that the open-circuit voltage does not exceed 35 V
when welding is not being carried out. This is indicated by a lit VRD indicator on
the panel. Contact an authorised ESAB service technician to activate this
function.

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5 OPERATION

5.8 Setting panel

1. VRD function (reduced open-circuit 6. Display, shows set or measured value.

voltage) indicator.
2. Overheating indication. 7. Display parameter indicator.
3. Indication of welding method MMA, MMA 8. Set indicator.
with electrode type "cellulose" or TIG.
4. Select welding method, indicated by (3). 9. Select parameter to show in display,
indicated by (7).
5. Knob for setting data.
5.8.1 Navigation
Parameter selection
By pressing the button (9) different values can be shown and changed. Use the knob (5) to
change the values. The sequence is:
1. Set current values.
2. Measured current values.
3. Soft/Crisp, 0-100%. (only MMA))
Set parameter
The set indicator (8) will be lit when a value can be changed. It cannot be changed from the
panel when a remote is activated. Trying to change a value while in measured value mode
will result in automatically move to set current value mode.

5.9 Remote control

Connect the remote control on the rear side of the power source. When the remote control is
connected it is automatically activated, the control panel is locked for interaction but displays
actual welding data.

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5 OPERATION

5.10 USB connection

Always use the USB cover when the USB connection is not in use.
Do not use for charging units such as mobile phones.
The welding process is blocked when a USB flash drive is connected. The USB
connection can be used to retrieve welding statistics. The statistics contains of
total number of welds performed, total welding time and average current.
Retrieving welding statistics
Always make sure that the power source is not used for welding when retrieving
welding statistics.
1. Insert an empty USB flash drive into the power source USB connector.
2. To confirm that the power source has read the USB flash drive, the text
"USB" flashes in the display for a moment, after which the text "USB" is
shown with fixed light.
3. When the text "USB" is shown with fixed light: Remove the USB flash
drive from the USB connector.
4. The USB flash will contain a text file (.txt) with the welding statistics.
5. Recommended program for opening the text file is Microsoft WordPad
or Microsoft Word.

0463 419 101 - 19 - © ESAB AB 2018

6 MAINTENANCE

6 MAINTENANCE
WARNING!
Disconnect power before performing maintenance.

CAUTION!
Only persons with the appropriate electrical knowledge (authorised personnel)
may remove safety plates.

CAUTION!
The product is covered by manufacturer's warranty. Any attempt to carry out
repair work by non-authorised service centers will invalidate the warranty.

NOTE!
Regular maintenance is important for safe and reliable operation.

NOTE!
Perform maintenance more often during severe dusty conditions.

Before each use - make sure that:

• Product and cables are not damaged,
• The torch is clean and not damaged.

6.1 Routine maintenance

Maintenance schedule during normal conditions. Check equipment prior to every use.
Interval Area to maintain
Every 3 month

Clean or replace Clean weld terminals. Check or replace weld

unreadable labels. cables.
Every 6 month

Clean inside
equipment. Use dry
compressed air with
reduced pressure.

6.2 Cleaning instruction

To maintain the performance and increase the lifetime of the power source it is mandatory to
clean it regularly. How often depends on:
• the welding process
• the arc time
• the working environment

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6 MAINTENANCE

CAUTION!
Make sure that the cleaning procedure is done in a suitable prepared workspace.

CAUTION!
During cleaning, always wear recommended personal safety equipment, such as
ear plugs, safety glasses, masks, gloves and safety shoes.

1. Disconnect the power source from the mains supply.

WARNING!
Wait at least 30 seconds for the capacitors to discharge before continuing.
2. Remove the four screws holding the right side panel (R) and remove the panel.

3. Clean the right side of the power source, using dry compressed air with reduced
pressure.
NOTE!
Since the power source contains one "dirty side" (the right side) and one
"clean side" (the left side), it is important that you do not remove the left
side panel before cleaning the right side of the power source.

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6 MAINTENANCE

4. Remove the four screws holding the left side panel (L) and remove the panel.

5. Clean the left side of the power source, using dry compressed air with reduced
pressure.
6. Make sure that there is no dust left on any part of the power source.
7. After having finished cleaning the power source, reattach the power source panels in
the reverse order.
NOTE!
When reattaching the right side panel, make sure the IP shield on the
inside of the panel is in the correct position. The IP shield should be angled
approximately 90° into the power source, so that it is positioned between
the welding outlet connector and the transformer outlets.

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6 MAINTENANCE

8. Tighten the screws on the side panels with 3 Nm ± 0.3 Nm (26.6 in lb. ± 2.6).

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7 TROUBLESHOOTING

7 TROUBLESHOOTING
Perform these checks and inspections before sending for an authorised service technician.
Type of fault Corrective action
MMA welding problems • Check that the welding and return cables are correctly
connected on the power source.
• Make sure the return clamp has proper contact with the
work piece.
• Check that the correct electrodes and polarity are being
used. For polarity, check electrode packaging.
• Check that the correct current value is set.
• Adjust Arc Force and Hot start.
TIG welding problems • Check that the welding and return cables are correctly
connected on power source.
• Make sure the return clamp has proper contact with the
work piece.
• Make sure the TIG torch lead is connected to negative
welding terminal.
• Make sure the correct shielding gas, gas flow, welding
current, filler rod placement, electrode diameter and
welding mode on power source is used.
• Make sure the gas valve on the TIG torch is on.
No arc • Check that display is on to verify that the power source
has power.
• Check setting panel display correct values.
• Check that the mains power supply switch is turned on.
• Check that the mains, welding and return cables are
correctly connected.
• Check the mains power supply fuses.
Welding current is • Check whether the overheating light (thermal protection)
interrupted during welding at setting panel is on.
• Continue with fault type "No Arc".
The thermal protection • Make sure the recommended duty cycle for the weld
trips frequently current has not been exceeded.
See section "Duty cycle" in the TECHNICHAL DATA
chapter.
• Make sure the air inlets or outlets are not clogged.
• Clean inside machine according to routine mainteance.

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8 ERROR CODES

8 ERROR CODES
The error code is used to indicate that a fault has occurred in the equipment. Errors are
indicated by the text "Err" followed by the error code number shown in the display.
If several errors have been detected only the code for the last occurring error is displayed.

8.1 Error code descriptions

Error codes that the user can handle are listed below. If any other error code appears,
contact an authorised ESAB service technician.
Error code Description
Err 1 Temperature fault
The temperature of the power source is too high. A LED indicating
temperature fault is also lit on the panel. A temperature fault is indicated by
the overheating indicator on the control panel.
Action: The error code will automatically disappear and the LED indicating
temperature fault will be turned off when the power source has cooled down
and is ready for use again. If the error persists, contact a service technician.
Err 3 Power supply fault
The power supply to the power source is too low or too high.
One phase is lost during 3-phase operation. Third phase voltage detected
during 1-phase operation.
Action: Make sure the power supply is stable, all leads are connected, that
the mains voltage (all 3 phases) are OK and restart the system. If the error
persists, contact a service technician.
Err 4 Communication fault
The communication in the power source has been disrupted.
Action: Check cables and connections, restart the power source. If the error
persists, contact a service technician.
Err 5 Memory fault
The program memory is damaged. This fault can disable preset functions or
other functions where values are stored.
Action: Remove the error indication from the display by pressing a button on
the panel. Restart the power source. If the error persists, contact a service
technician.
Err 6 Timing fault
The power source electronics are not able to execute all functions in a timely
fashion.
Action: Restart the power source. If the error persists, contact a service
technician.
Err 7 OCV fault
The OCV is too high or the electronic control of the OCV has been disrupted.
Action: Restart the power source. If the error persists, contact a service
technician.

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9 ORDERING SPARE PARTS

9 ORDERING SPARE PARTS

Repair and electrical work should be performed by an authorised ESAB service technician.
Use only ESAB original spare and wear parts.
The ES 300i is designed and tested in accordance with international and european standard
IEC/EN 60974-1. On completion of service or repair work, it is the responsibility of the
person(s) performing the work to ensure that the product still complies with the requirements
of the above standard.
Spare parts and wear parts can be ordered through your nearest ESAB dealer, see
esab.com. When ordering, please state product type, serial number, designation and spare
part number in accordance with the spare parts list. This facilitates dispatch and ensures
correct delivery.

0463 419 101 - 26 - © ESAB AB 2018

 DIAGRAM

DIAGRAM

0463 419 101 - 27 - © ESAB AB 2018

 ORDERING NUMBERS

ORDERING NUMBERS

Ordering number Denomination Type Notes

0445 100 882 Welding power source ES 300i South America
0463 423 001 Spare parts list ES 300i
Technical documentation is available on the Internet at www.esab.com

0463 419 101 - 28 - © ESAB AB 2018

 ACCESSORIES

ACCESSORIES

TIG torches
0700 300 539 TXH™ 151 V, OKC 50, 4 m
0700 300 545 TXH™ 151 V, OKC 50, 8 m
0700 300 553 TXH™ 201 V, OKC 50, 4 m
0700 300 556 TXH™ 201 V, OKC 50, 8 m

0460 330 881 Trolley

0445 197 880 Shoulder strap kit

0700 006 902 Welding cable kit 3 meter, incl. electrode

holder and OKC 50 connector
0700 006 888 Welding cable kit 5 meter, incl. electrode
holder and OKC 50 connector

0700 006 903 Return cable kit 3 meter, incl. clamp and
OKC 50 connector
0700 006 889 Return cable kit 5 meter, incl. clamp and
OKC 50 connector

0160 360 881 OKC 50 male contact, pack 4 pcs

0463 419 101 - 29 - © ESAB AB 2018

 ACCESSORIES

0445 536 881 ER 1 Remote control. 5 m (16.4 ft)

interconnection cable, 6 pin, included.
0445 536 882 ER 1 Remote control. 10 m (32.8 ft)
interconnection cable, 6 pin, included.
0445 536 883 ER 1 Remote control. 25 m (82 ft)
interconnection cable, 6 pin, included.
0445 280 880 Interconnection cable, 6 pin, 5 m (16.4 ft)
0445 280 881 Interconnection cable, 6 pin, 10 m (32.8 ft)
0445 280 882 Interconnection cable, 6 pin, 25 m (82 ft)
0445 550 881 ER 1 F Foot pedal
5 m (16.4 ft) interconnection cable, 6 pin,
included
0445 254 880 Interconnection cable, 6 pin, 5 m (16.4 ft)
0445 254 881 Interconnection cable, 6 pin, 10 m (32.8 ft)

0445 840 880 Renegade analogue remote kit

0445 870 880 Remote Control MMA3, 10 m

0445 870 881 Remote Control MMA3, 25 m

0445 693 880 Interconnection cable for analogue remote

control MMA3, 10 m
0445 693 881 Interconnection cable for analogue remote
control MMA3, 25 m

0445 694 880 Interconnection cable for analogue remote

controls AT1 and AT1 C/F, 10 m
0445 694 881 Interconnection cable for analogue remote
controls AT1 and AT1 C/F, 25 m

0463 419 101 - 30 - © ESAB AB 2018

 ACCESSORIES

0463 419 101 - 31 - © ESAB AB 2018

 For contact information visit esab.com
ESAB AB, Lindholmsallén 9, Box 8004, 402 77 Gothenburg, Sweden, Phone +46 (0) 31 50 90 00

http://manuals.esab.com