Lincoln Electric SAF-FRO DIGISTEEL 355S User manual

IM3124
12/2022
REV02
DIGISTEEL 355S, 425S, 505S
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-260 Bielawa, Poland

English English
I
12/05
THANKS! For having choosen the QUALITY of the Lincoln Electric products.
Please Examine Package and Equipment for Damage. Claims for material damaged in shipment must be notified
immediately to the dealer.
For future reference record in the table below your equipment identification information. Model Name, Code & Serial
Number can be found on the machine rating plate.
Model Name:
………………...…………………………….…………………………………………………………………………………………..
Code & Serial number:
………………….……………………………………………….. …………………………………………………….……………..
Date & Where Purchased:
…………………………………………………………………... ……………………….…………………………………………..
ENGLISH INDEX
Technical Specifications...............................................................................................................................................................1
ECO design information ...............................................................................................................................................................3
Electromagnetic Compatibility (EMC) ..........................................................................................................................................5
Safety............................................................................................................................................................................................6
Intoduction ....................................................................................................................................................................................8
Installation and Operator Instructions ..........................................................................................................................................8
WEEE .........................................................................................................................................................................................13
Spare Parts.................................................................................................................................................................................13
REACh........................................................................................................................................................................................13
Authorized Service Shops Location...........................................................................................................................................13
Electrical Schematic ...................................................................................................................................................................13
Accessories Suggested..............................................................................................................................................................14
Connection Diagram ..................................................................................................................................................................15

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1
Technical Specifications
NAME INDEX
DIGISTEEL 355S W000404454
DIGISTEEL 425S W000404455
DIGISTEEL 505S W000404456
INPUT
Input Voltage U1EMC Class Frequency
355S
400V ± 15% 3-phase A 50/60Hz
425S
505S
Input Power at Rated Cycle Input Amperes I1max PF
355S 15 kVA @ 50% Duty Cycle
(40°C) 21A 0,90
425S 19 kVA @ 100% Duty Cycle
(40°C) 27A 0,92
505S 23 kVA @ 60% Duty Cycle
(40°C) 34A 0,94
RATED OUTPUT
Open Circuit
Voltage
Duty Cycle 40°C
(based on a 10 min.
period)
Output Current Output Voltage
355S
U0peak = 54Vdc
U0rms = 54Vdc
GMAW
50% 350A 31,5Vdc
60% 340A 31,0Vdc
100% 300A 29,0Vdc
FCAW
50% 350A 31,5Vdc
60% 340A 31,0Vdc
100% 300A 29,0Vdc
SMAW
30% 350A 34,0Vdc
60% 320A 32,8Vdc
100% 275A 31,0Vdc
425S
U0peak = 60Vdc
U0rms = 54Vdc
GMAW 100% 420A 35,0Vdc
FCAW 100% 420A 35,0Vdc
SMAW 100% 420A 36,8Vdc
505S
U0peak = 60Vdc
U0rms = 54Vdc
GMAW 60% 500A 39,0Vdc
100% 420A 35,0Vdc
FCAW 60% 500A 39,0Vdc
100% 420A 35,0Vdc
SMAW 60% 480A 39,2Vdc
100% 420A 36,8Vdc
WELDING CURRENT RANGE
GMAW FCAW SMAW
355S 20A÷350A 20A÷350A 10A÷350A
425S 20A÷420A 20A÷420A 10A÷420A
505S 20A÷500A 20A÷500A 10A÷480A
WELDING VOLTAGE REGULATION RANGE
GMAW FCAW
355S 15V÷ 33,5V 15V÷ 33,5V
425S 15V ÷ 37V 15V ÷ 37V
505S 15V ÷ 41V 15V ÷ 41V

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2
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse Type: Time-Delay or Circuit Breaker Type D Power Lead
400V
355S 25A 4 Conductor, 2,5mm2
425S 32A 4 Conductor, 4,0 mm2
505S 32A 4 Conductor, 4,0 mm2
DIMENSION
Weight Height Width Length
355S 68kg
932 mm 560 mm 925 mm
425S 78kg
505S 79kg
OTHERS
Protection Rating Operating Humidity (t=20°C) Operating Temperature Storage Temperature
IP23 ≤90 % from -10 ºC to +40 ºC from -25 ºC to +55 ºC

English 3 English
ECO design information
The equipment has been designed in order to be compliant with the Directive 2009/125/EC and the Regulation
2019/1784/EU.
Efficiency and idle power consumption:
Index Name Efficiency when max power consumption
/ Idle power consumption Equivalent model
W000404454 DIGISTEEL 355S 86,7% / 29W No equivalent model
W000404455 DIGISTEEL 425S 88,7% / 29W No equivalent model
W000404456 DIGISTEEL 505S 87,9% / 29W No equivalent model
Idle state occurs under the condition specified in below table
IDLE STATE
Condition Presence
MIG mode X
TIG mode
STICK mode
After 30 minutes of non-working
Fan off X
The value of efficiency and consumption in idle state have been measured by method and conditions defined in the product
standard EN 60974-1:20XX.
Manufacturer’s name, product name, code number, product number, serial number and date of production can be read from
rating plate.
XXXXXXXXXX
Code: XXXXX XXXXXX-X
S/N: P1YYMMXXXXX
12
34
5
P1 YY MM XXXXX
5A5A 5B 5D5C
XXXXXXX
Where:
1- Manufacturer name and address
2- Product name
3- Code number
4- Product number
5- Serial number
5A- country of production
5B- year of production
5C- month of production
5D- progressive number different for each machine