Lincoln Electric INVERTEC 275S User manual

IM3135
02/2022
REV01
INVERTEC 275S
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-260 Bielawa, Poland
www.lincolnelectric.eu

English I English
12/05
THANK YOU! For choosing the QUALITY of the Lincoln Electric products.
Please check packaging and equipment for damage. Claims for material damaged in shipment must be notified
immediately to the dealer.
For ease of use, please enter your product identification data in the table below. Model Name, Code & Serial Number
can be found on the machine rating plate.
Model Name:
………………...…………………………….…………………………………………………………………………………………..
Code & Serial number:
………………….……………………………………………….. …………………………………………………….……………..
Date & Where Purchased:
…………………………………………………………………... ……………………….…………………………………………..
INDEX
Technical Specifications...................................................................................................................................................... 1
ECO design information ...................................................................................................................................................... 2
Electromagnetic Compatibility (EMC).................................................................................................................................. 4
Safety.................................................................................................................................................................................. 5
Introduction ......................................................................................................................................................................... 7
Installation and Operator Instructions.................................................................................................................................. 7
WEEE ............................................................................................................................................................................... 18
Spare Parts ....................................................................................................................................................................... 18
REACh .............................................................................................................................................................................. 18
Authorized Service Shops Location .................................................................................................................................. 18
Electrical Schematic.......................................................................................................................................................... 18
Accessories....................................................................................................................................................................... 19

English 1 English
Technical Specifications
NAME INDEX
INVERTEC 275S K14242-1
INPUT
Input Voltage U1EMC Class
INVERTEC
275S
400V +/- 15% 3 phases A
I1eff I
1max
9.8A 15,3A
INVERTEC
275S
Input Power at Rated Cycle Input Amperes I1max PF (400V)
7,1 kVA (@100%) 10,1A 0,79
9,1 kVA (@60%) 12,9A 0,85
11 kVA (@25%) 15,3A 0,89
RATED OUTPUT
Duty Cycle 40°C
(based on a 10 min. period) Output Current I2
GTAW
100% 200A
60% 230A
40% 270A
SMAW
100% 180A
60% 230A
25% 270A
OUTPUT RANGE
Welding Current Range Peak Open Circuit Voltage U0
GTAW 5 - 270A 70V
SMAW 5 - 270A
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse Type gR or Circuit Breaker Type Z Power Lead
INVERTEC
275S 16A, 400V AC 4 Conductors, 1,5mm2
DIMENSIONS AND WEIGHT
Weight Height Width Length
INVERTEC
275S 14,1Kg 360 mm 230 mm 498 mm
Protection Rating Maximum Gas Pressure
INVERTEC
275S
IP23 0,5 MPa (5 bar)
Operating Temperature Storage Temperature
from -10°C to +40°C from -25°C to +55°C

English 2 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
K14242-1 INVERTEC 275S 85% / 19W No equivalent model
Idle state occurs under the condition specified in below table
IDLE STATE
Condition Presence
MIG mode
TIG mode X
STICK mode
After 30 minutes of non-working X
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

English 3 English
Typical gas usage for MIG/MAG equipment:
Material type
Wire
diameter
[mm]
DC electrode positive Wire Feeding
[m/min] Shielding Gas Gas flow [l/min]
Current
[A]
Voltage
[V]
Carbon, low
alloy steel 0,9 ÷ 1,1 95 ÷ 200 18 ÷ 22 3,5 – 6,5 Ar 75%, CO225% 12
Aluminium 0,8 ÷ 1,6 90 ÷ 240 18 ÷ 26 5,5 – 9,5 Argon 14 ÷ 19
Austenic
stainless steel 0,8 ÷ 1,6 85 ÷ 300 21 ÷ 28 3 - 7 Ar 98%, O22% / He 90%, Ar 7,5% CO22,5% 14 ÷ 16
Copper alloy 0,9 ÷ 1,6 175 ÷ 385 23 ÷ 26 6 - 11 Argon 12 ÷ 16
Magnesium 1,6 ÷ 2,4 70 ÷ 335 16 ÷ 26 4 - 15 Argon 24 ÷ 28
Tig Process:
In TIG welding process, gas usage depends on cross-sectional area of the nozzle. For commonly used torches:
Helium: 14-24 l/min
Argon: 7-16 l/min
Notice: Excessive flow rates causes turbulence in the gas stream which may aspirate atmospheric contamination into
the welding pool.
Notice: A cross wind or draft moving can disrupt the shielding gas coverage, in the interest of saving of protective gas
use screen to block air flow.
End of life
At end of life of product, it has to be disposal for recycling in accordance with Directive 2012/19/EU (WEEE), information
about the dismantling of product and Critical Raw Material (CRM) present in the product, can be found at
https://www.lincolnelectric.com/en-gb/support/Pages/operator-manuals-eu.aspx