Lincoln Electric CV-300 Safety Precautions, Select Suitable Location, Input Connections, Stacking

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INSTALLATION

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Read entire installation section before starting installation.

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this installation.

•Turn the input power OFF at the discon- nect switch or fuse box before working on this equipment.

•Turn the Power switch on the CV-300 “OFF” before connecting or disconnect- ing output cables, wire feeder or remote connections, or other equipment.

•Do not touch electrically hot parts.

•Always connect the Idealarc CV-300 grounding terminal (located on the welder base near the reconnect panel) to a good electrical earth ground.

SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely circulate in through the side louvers and out through the rear louvers. Dirt, dust or any foreign material that can be drawn into the welder should be kept at a minimum. Failure to observe these precautions can result in excessive operating temperatures and nuisance shut-downs. Idealarc CV-300 power sources carry an IP23 enclosure rating. They are rated for use in damp, dirty environments subject to occasional falling water such as rain.

STACKING

The CV-300 may be stacked three-high provided the bottom machine is on a stable, hard, level surface. Be sure that the two pins in the roof fit into the slots in the base of the CV-300 above it.

TILTING

Do not place the machine on a surface that is inclined enough to create a risk of the machine falling over.

INPUT CONNECTIONS

Be sure the voltage, phase, and frequency of the input power is as specified on the welder nameplate.

Gain access to the input reconnect panel by removing the right case side of the CV-300 (side nearest to the Power switch.)

Have a qualified electrician connect the input leads to L1, L2, and L3 of the input reconnect panel in accor- dance with the National Electrical Code, all local codes, and the connection diagram located on the inside of the right case side. Use a three phase line.

The frame of the welder must be grounded. A ground

terminal marked with the symbol located on the base of the machine is provided for this purpose. See the National Electrical Code for details on proper grounding methods.

Fuse the input circuit with the recommended super lag fuses. Choose an input and grounding wire size according to local codes or use the following table. "Delay type"1 circuit breakers may be used in place of fuses. Using fuses or circuit breakers smaller than recommended may result in "nuisance" tripping from welder inrush currents even if not welding at high cur- rents.

RECOMMENDED INPUT WIRE AND FUSE SIZES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type 75°C

 

 

 

 

Fuse

Input

Type 75°C

Copper

 

 

 

Input

(Super Lag)

Ampere

Copper Wire in

Ground Wire in

 

 

 

Voltage /

or Breaker

Rating on

Conduit AWG

Conduit AWG

 

 

 

Frequency

Size

Nameplate

(IEC) Sizes

(IEC) Sizes

 

 

 

 

 

 

 

 

 

 

 

208/60

100

66

4 (25 mm2)

8 (10mm2)

 

 

 

230/60

90

60

4 (25 mm2)

8 (10mm2)

 

 

 

460/60

50

30

10 (6mm2)

10 (6mm2)

 

 

 

575/60

40

24

10 (6mm2)

10 (6mm2)

 

 

 

200/50/60

100

66

4 (25 mm2)

8 (10mm2)

 

 

 

220/50/60

90

61

4 (25 mm2)

8 (10mm2)

 

 

 

230/50/60

90

58

4 (25 mm2)

8 (10mm2)

 

 

 

380/50/60

60

35

8 (10mm2)

10 (6mm2)

 

 

 

400/50/60

50

33

8 (10mm2)

10 (6mm2)

 

 

 

415/50/60

50

32

8 (10mm2)

10 (6mm2)

 

 

 

440/50/60

50

31

10 (6mm2)

10 (6mm2)

 

 

 

500/50/60

40

26

10 (6mm2)

10 (6mm2)

 

1Also called “inverse time” or “thermal/magnetic” circuit breakers; circuit breakers which have a delay in tripping action that decreases as the magni- tude of the current increases.

CV-300

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Contents Idealarc CV-300October California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Technical Specifications Idealarc CV-300 InstallationSelect Suitable Location Safety PrecautionsInput Connections StackingOutput Connections Field Installed OptionsParalleling Operation Operating InstructionsGeneral Warnings Design Features Operational Features and ControlsPower Source Operation General DescriptionThermal Protection Indication Light Controls and SettingsVoltage Control Indicates Warning Information Located on Right Case SideOutput Panel Connections C. Output ConnectorsAuxiliary Power Starting the MachineOverload Protection Accessories Factory Installed OPTIONS/ACCESSORIESCompatible Lincoln Equipment General Maintenance MaintenanceSafety Precautions Machine and Circuit ProtectionHOW to USE Troubleshooting Guide TroubleshootingError Code Trouble Remedy BUILT-IN Diagnostic Routines and Error CodesProblems Possible Areas Recommended Symptoms Machine Troubleshooting GuideProblems Poor arc characteristics Control PC Board defective Options Troubleshooting Guide Meter PC Board Control PC BoardOptional K857 Remote Control Check Fault Protection OperationOutput Voltage Checking Snubber CircuitWiring Diagram CV-300 60Hz CV Power Source to AN LN-7 and K857 DiagramsAdapter LN-7 Power Source to a K867 / K775CV Power Source to AN LN-25 Power Source to AN LN-25 / K444-1 Wire Lincoln Power Source to AN LN-742Installation Instructions TWIST-MATE Cable Plug Installation Instructions Connection of NON-LINCOLN Wire Feeders Dimension Print CV-300 CV-300 How To Read Shop Drawings Precaucion Warnung

CV-300 specifications

The Lincoln Electric CV-300 is a highly regarded power source designed specifically for wire feed welding applications. This machine combines advanced technology with user-friendly features to meet the demanding needs of professional welders. Known for its reliability, efficiency, and versatility, the CV-300 is suitable for various welding processes, including MIG, flux-cored, and DC TIG welding.

One of the standout features of the CV-300 is its constant voltage design. This ensures a stable arc throughout the welding process, which is critical for achieving high-quality welds. The ability to maintain a consistent arc helps in reducing spatter and improves bead appearance, making it ideal for both novice and experienced welders.

The CV-300 is equipped with Lincoln Electric's exclusive Auto-Set technology. This feature simplifies the setup process significantly by allowing users to select the material type and thickness. The machine automatically adjusts the voltage and wire feed speed, ensuring optimal performance without requiring extensive knowledge of welding parameters from the operator.

Another defining characteristic of the CV-300 is its robust construction. Built to endure the rigors of the shop environment, the power source features a durable housing and components that withstand high heat and heavy use. Additionally, it is designed for easy access to internal components, facilitating maintenance and servicing when required.

Portability is another significant advantage of the Lincoln Electric CV-300. Weighing in at a manageable size, the power source can easily be transported to job sites or moved around the workshop, enhancing its usability. It is compatible with various wire feeders, making it an adaptable choice for different welding projects, whether it's light fabrication or heavier industrial work.

The CV-300 also supports a variety of input voltages, making it versatile for use in different settings. Its adaptability allows it to operate efficiently in various environments, ensuring that welders have the power they need at their fingertips.

In summary, the Lincoln Electric CV-300 is a formidable choice for those in need of reliable and powerful welding equipment. With features such as constant voltage output, Auto-Set technology, robust construction, and portability, it meets the demands of modern welding with ease, helping professionals achieve stunning results in their work.
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