Lincoln Electric Welding System CV 305 User Manual

MIG WELDERS  
CV-305  
When it comes to welding mild steel, stainless steel, aluminum and alloy  
materials, you won’t find a more reliable power source than the CV-305.  
This well-engineered CV unit features two inductance connections. Lincoln’s  
Twist-Mate® output connectors make it easy to choose the right inductance  
for your application.  
Output  
CV  
DC  
Input  
3
This unit is the most compact unit in its class, yet it’s loaded with  
convenient features! Digital meters that can be preset, line voltage  
compensation, a remote and local control option, and a 7-year rectifier  
warranty — what more do you need?  
PHASE  
60  
Hz  
Processes  
MIG Flux-Cored  
Advantage Lincoln  
Precision Arc Perfomance  
Quality & Reliability  
-
Stack them three-high or purchase an affordable package that  
includes the new LF-72 feeder, a Magnum® 400 MIG gun and  
more!  
-
-
-
Environmentally protected transformer and power rectifier are  
rugged and reliable.  
Provides line voltage compensation for maintaining weld  
consistency, even with changes of 10%.  
-
Two output connectors allow you to optimally connect to high or  
low inductance for arc conrol. Use low inductance output  
connection when short-arc welding, and high inductance output  
connection with spray and globular transfer welding  
Three-year warranty on parts and labor; seven-year warranty on  
power rectifier.  
Features & Innovations  
-
Compact unit is 20 lbs. (9.0 kg) lighter and significantly smaller  
than competitive models — save your space!  
-
-
Easy access Twist-Mate® connection on the front of the machine.  
Digital Ammeter/Voltmeter read-out display allows presets for  
added convenience and accuracy.  
TECHNICAL SPECIFICATIONS  
Dimensions  
H x W x D  
Product  
Name  
Product  
Number  
Rated Output  
Input Current @  
Net Weight  
lbs.(kg)  
Input Power  
Current/Voltage/Duty Cycle  
Rated Output  
51/48/24A  
48/24/20A  
Output Range  
inches (mm)  
315/32.6V/100%  
315/32.6V/100%  
K2400-1  
K2400-2  
208/230/460/3/60  
230/460/575/3/60  
50-400A  
24.6 x 19.5 x 27.0  
(625 x 495 x 686)  
330  
(149)  
CV-305  
Publication E4.22 11/06  
Web Update 6/07  
 
A CLOSER LOOK  
QUALITY AND RELIABILITY  
• Electronic and thermostatic protection from current overload or  
excessive temperatures.  
• Solid state circuitry provides extra long life during repetitive  
applications.  
• “Cold” electrode with a solid state contactor when the trigger  
is released for added safety.  
• Three-year warranty on parts and labor; seven-year warranty on  
power rectifier.  
• Microprocessor-based control PC board has built-in diagnostic  
routines for quick and easy troubleshooting.  
• Manufactured under a quality system certified to ISO 9001  
standards.  
• Circuit boards are protected with a specially insulated coating  
to extend life and ensure reliable performance.  
RECOMMENDED OPTIONS  
GENERAL OPTIONS  
Jumper Plug Kit  
Remote Output Control  
Required to close the contactor in  
the power source when the power  
source is used with a remote ouput  
contactor such as the contactor in  
the K449 LN-25, or K1870-1 LN-15  
wire feeder.  
For remote output of welding  
voltage. Consists of control box  
with 25 or 100 ft. (7.6 or 30 m) of  
four conductor cable and 6 pin  
MS-type connector.  
Order K857 for 25 ft. (7.6m).  
Order K857-1 for 100 ft. (30m).  
Order K484  
Undercarriage  
Remote Control Cable Adapter  
Y connection adapter for  
Platform undercarriage with  
mounting for two gas cylinders at  
rear of welder.  
connecting K857 Remote Output  
Control (6 pin plug connection) and  
wire feeder input cable (14 pin plug  
connection) to power source 14 pin  
receptacle.  
Order K874  
Universal Adapter Plug  
Order K864  
The adapter plug allows user  
connection of any suitable  
accessory or wire feeder to the  
output contactor and auxiliary  
power circuitry. Consists of a 14  
pin MS-type (Amphenol) connector  
with 8” (203mm) stripped leads.  
Order K867  
®
Twist-Mate Cable Plug  
For connecting welding cable to  
output terminal receptacles. For  
1/0 – 2/0 (50 – 70 mm2) cable.  
Order K852-70  
®
Twist-Mate Cable Plug  
For connecting welding cable to  
output terminal receptacles. For  
2/0 – 3/0 (70 – 95 mm2) cable.  
Order K852-95  
CV-305  
[3]  
 
CV-305 ORDER FORM  
PRODUCT DESCRIPTION  
ORDER NUMBER  
QUANTITY  
PRICE  
CV-305 208/230/460/3/60  
CV-305 230/460/575/3/60  
K2400-1  
K2400-2  
®
READY-PAK PACKAGE  
CV-305/LF-72 Bench Model Wire Feeder (208/230/460/3/60)  
K2395-1  
RECOMMENDED GENERAL OPTIONS  
Remote Output Control, 25 ft. (7.6m)  
100 ft. (30m)  
K857  
K857-1  
K864  
Remote Control Cable Adapter  
Twist-Mate Cable Plug for 1/0-2/0 (50-70 mm2) cable  
Twist-Mate Cable Plug for 2/0-3/0 (70-95 mm2) cable  
Jumper Plug Kit  
K852-70  
K852-95  
K484  
Universal Adapter Plug  
K867  
Undercarriage  
K874  
RECOMMENDED WIRE FEEDER OPTIONS  
LF-72 and LF-74  
See publication E8.11  
See publication E8.60  
See publication E8.90  
See publication E8.100  
See publication E8.300  
See publication E12.100  
LN-15  
LN-23P  
LN-25  
Cobramatic®  
Magnum® Spool Gun  
TOTAL:  
C U S T O M E R A S S I S T A N C E P O L I C Y  
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 responsible 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 these types of fabrication methods and service requirements.  
THE LINCOLN ELECTRIC COMPANY  
22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com  
 

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