LHF 400/630/800
LHF 400/630/800
Heavy duty rectifiers
Robust and powerful
The LHF 400/630/800 are sturdy and robust thyristorcontrolled units intended for manual heavy duty MMA
welding with covered electrodes with direct current.
The LHF range can be also used for TIG welding when
TIG add-on units are applied.
The LHF 630 and LHF 800 are optimised for arc-air
gouging as well.
The LHF 400/630/800 are recommended especially for
the highest requirements and toughest areas of
applications. The large wheels make them easy to
move.
Well proven technology together with ESAB developed
software provides high reliability and outstanding
welding performance.
Easy to use
The wide current and voltage range make it easy to
optimise settings for a wide variety of filler materials.
It is possible to adjust parameters during welding
process.
The LHF units are equipped with such functions as hot
start and anti stick.
Flexibility
The units have vertical static characteristics which means
that regardless of cable length and arc voltage, the
current is constant.
The dynamic characteristics of the LHF range ensures
stable, spatterfree arc and easily controlled molten pool.
Due to high power factor energy consumption is low as
well as installation costs.
Applications
• General fabrication and civil construction
• Repair and maintenance
• Power generation
• Pipelines
• Shipbuilding and offshore
• Process industry
As an option the LHF range can be equipped with remote
control units.
The units are switched off automatically in case of
overheating.
• Outstanding welding characteristics- high efficiency
and high quality welding.
• Wide current and voltage range- multiple purpose
applications.
• Mains voltage compensation - stable welding
controls
• Stepless voltage control - exact settings and giving
remote control facilities
• Anti stick and hot start
XA00068720
Technical data
Permitted load at
35% duty cycle
60% duty cycle
100% duty cycle
Setting range (DC)
Open circuit voltage
Open circuit power
Power factor at maximum current
Efficiency at maximum current
Inductance outlets
Dimensions lxwxh
Weight
Operating temperature
Enclosure class
Application classification
LHF 400
LHF 630
LHF 800
400/415/500 V, 3~50 Hz
440-460/550 V, 3~60 Hz
400/415/500 V, 3~50 Hz
440-460/550 V, 3~60 Hz
400/415/500 V, 3~50 Hz
440-460/550 V, 3~60 Hz
400 A
315 A
250 A
8 A/20V - 400 A/36V
80-87 V
340W
0,9
74%
2
1310x 765 x 705 mm
195 kg
-10 till +40°C
IP 23
S
630 A
500 A
400 A
8 A/20V - 630 A/44(49)V
65-72 V
615W
0,87
77%
2
1310x 765 x 705 mm
260 kg
-10 till +40°C
IP 23
S
800 A
630 A
500 A
8 A/20V - 800 A/44(50)V
65-72 V
640W
0,82
78%
2
1310 x 765 x 705 mm
295kg
-10 till +40°C
IP 23
S
Quality accessories for the quality welder
Ordering information
LHF 400
LHF 400 Stationary
LHF 400 Offshore
LHF 400 V/A meter, fan control
LHF 630
LHF 630 Stationary
LHF 630 Offshore
LHF 630 V/A meter, fan control
LHF 800 Offshore
0319 783 882
0319 783 885
0319 783 886
0468 680 880
0319 950 882
0319 950 885
0319 950 886
0468 680 881
0319 951 884
Accessories
MMA 1 Remote control, 10 m
MMA 2 Remote control, 10 m
AT1 Remote control
AT1 CoarseFine Remote control
0349 501 024
0349 501 025
0459 491 896
0459 491 897
Connection cable 5 m analogue 12 pole
Connection cable 10 m analogue 12 pole
Connection cable 15 m analogue 12 pole
Connection cable 25 m analogue 12 pole
Auxiliary transformer (for TIG or rod drier)
Spacer bars (stationary)
Pneumatic tyres
4-wheel chassis
Protective 2-wheel frame
0459 552 880
0459 552 881
0459 552 882
0459 552 883
0320 003 880
0320 000 880
0320 001 880
0320 002 880
0365 053 880
ESAB offers a wide range of accessories. The complete range,
along with product information, is available at our local web-sites,
look at www.esab.com or contact your local ESAB dealer.
Unrivalled service and support
Our commitment and ability to deliver the expected service and
support starts immediately after the order is confirmed. We
endeavour to offer our customers an After Sales service, which
is second to non. A strong and skilful service organisation is
prepared to offer service and maintenance, calibration,
validation and upgrading of equipment and software.
The service organisation will offer standardised solutions for
the reconditioning or modification of existing products.
Spare and wear parts are manufactured according to ESAB’s
quality plan. Exchange Printed Circuit Board (PCB), exchange
modules and components are available for all our products in
order to reduce downtime to an absolute minimum. ESAB is
continuously upgrading authorised service partners for local
service support. Customers who have their own service and
maintenance personnel will always be offered a service-training
package as part of a total ESAB offering. However, product
and process training for end-users will form an additional part
of the ESAB offering. Always ask your ESAB sales
representative or distributor for a complete ESAB solution.
ESAB AB
Box 8004
SE-402 77 GÖTEBORG SWEDEN
Phone: +46 31 50 90 00 Fax +46 31 22 04 49
E-mail: info@esab.se
www.esab.com
2007-07-06 / ESAB reserves the right to alter specifications without prior notice
Mains voltage
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