Lincoln Electric Idealarc 250 - Manual

• Outstanding arc stability and built-in stabilizer provide popout-
resistant welding with all AC electrodes.
• Versatile welding range with up to 300 amps AC and 250 amps DC.
• Suitable for use with every type of electrode including low hydrogen,
stainless steel, hardfacing, aluminum and bronze.
• Easy set-up and operation. Full range continuous current control dial
with current indicator for exact heat required for each job.
• Change polarity with a twist of the wrist –– AC, DC+ or DC-.
• Stackable case design allows machines to be stacked 3 high to save
valuable floor space.
• Fan-cooled for extra thermal protection.
• CSA NRTL/C certified.
• PC boards for extreme environmental protection.
• Manufactured under a quality system certified to ISO 9001
requirements and ISO 14001 environmental standards.
• Three-Year Lincoln Warranty on parts and labor. Two-year extended
warranty available in the U.S.
Advantage Lincoln
STICK WELDERS
Publication E2.70 02/08
www.lincolnelectric.com
250 Amp DC Stick Welding Power Source
Idealarc
®
250
Output
1
PHASE
AC
DC
Input
60
Hz
The Idealarc ® 250 is the classic workhorse of the Lincoln Electric stick welding
power source line. It produces up to 300 amps of brute AC welding strength or
down to 40 amps of smooth DC welding performance.
Add the optional TIG Module to create a versatile AC/DC TIG welder for welding
aluminum or other alloy metals.
The Idealarc ® 250 is well suited for industrial production welding applications, for
maintenance and repair shops where welding versatility is needed, and for the
shop or farm where ruggedness and durability is required.
Processes
Stick, TIG, Gouging
TECHNICAL SPECIFICATIONS
Rated Output Dimensions
Product Product Current /Voltage/ Input Current @ H x W x D Net Weight
Name Number Input Power Duty Cycle Rated Output Output Range inches (mm) lbs (kg)
Idealarc ® 250 K1053-7 208/230/460/1/60 AC: 250A/30V/30% 95/86/43A AC: 35-300A 27 x 19 x 21.5 350
K1053-9 DC: 250A/30V/30% 75/68/34A Max. OCV: 72V (686 x 483 x 546) (159)
with Power Factor
Capacitors
DC: 40-250A
Max. OCV: 70V
K1053-8 230/460/575/1/60 AC: 250A/30V/30% 86/43/34A
DC: 250A/30V/30% 68/34/27A