Lincoln Electric AC-1200 User Manual
Submerged Arc
Processes
AC-1200
Order
Advantage Lincoln
NA-4, LT-56
Recommended Wire Feeders
K1276 AC-1200 460/1/60
K1382 AC-1200 440/1/50/60
K1382-1 AC-1200 380/1/50/60
K1382-2 AC-1200 415/1/50/60
• Scott connection taps standard for two AC welding
heads operated in tandem.
• Rheostat adjusts the output settings while welding or
at idle.
• Three output studs with overlapping ranges.
• ±10% input line voltage compensation for maintaining weld consistency.
• Thermostatic protection from current overload and
excessive temperatures.
• Terminal strip for remote control and wire connections and output studs for welding cables.
• Fuse protected control circuit and 115V AC auxiliary
power circuit.
• Solid state circuitry provides extra long life for
repetitive welding applications.
• Removable side panels for easy access to internal
parts.
• Windings and rectifiers protected against moisture and
corrosive environments.
• UL listed.
• Three year warranty on parts and labor.
• Manufactured under a quality system certified to
ISO 9001 requirements.
www.lincolnelectric.com
E5.70 8/02
MULTI-PROCESS WELDERS
AC
CC
1
PHASE
Description
The AC-1200 is the industry’s leading power source for AC
submerged arc welding. It is a power source that you can
count on day-in and day-out to provide proven performance.
The AC-1200 produces outstanding arc characteristics and is
specifically designed for operation with Lincoln’s NA-4
automatic wire feeder.
Technical Specifications
Dimensions
Product Product Rated Output
(1)
Input Current @ H x W x D Net Weight
Name Number Input Power Current/ Voltage /Duty Cycle Rated Output Output Range in.(mm) lbs.(kg)
AC-1200
K1276
K1382
K1382-1
K1382-2
460/1/60
440/1/50/60
380/1/50/60
415/1/50/60
1200A/44V/100%
182A
190A
220A
201A
60HZ:
200-1500A
50HZ:
240-1500A
53.5
(2)
x 22 x 38
(1360
(2)
x 560 x 970)
1570
(712)
(1) NEMA Class I Rated Output / Based on a 10 min. period.
(2) Add 3.69 in (93.7mm) for lift hook.
Automatic Submerged Arc Welding Power Source
AC-1200 460/1/60 K1276
AC-1200 440/1/50/60 K1382
AC-1200 380/1/50/60 K1382-1
AC-1200 415/1/50/60 K1382-2
Recommended Wire Feeders
NA-4 See Publication E9.10
LT-56 See Publication E9.80
TOTAL:
A Closer Look
Customer Assistance Policy
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers
and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information
in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any
warranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume
any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to
the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer.
Many variables beyond the control of Lincoln Electric affect the results obtained in applying this type of fabrication methods and service requirements.
THE LINCOLN ELECTRIC COMPANY
22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com
Typical AC-1200 output characteristic curves.
The current control set for Maximum and
Minimum on the three ranges are shown.
The AC-1200 is specifically designed for operation
with the NA-4 automatic wire feeder.
AC-1200 Order Form
PRODUCT DESCRIPTION ORDER NUMBER QUANTITY PRICE
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