IDEALARC CV 400-I, 500-I




CV 500-I
IDEALARC CV 400-I and CV 500-I are sources with constant voltage for GMAW (MIG/MAG) welding. They are intended for welding of construction steels, high-quality steels, AL alloys etc. These sources enable welding with both, solid wires and cored wires without outer shielding – Innershield and with gas shielded cored wires – cored wires Outershield.
IDEALARC CV 400-I/500-I enable, thanks to smooth setting of arc voltage, to select the most optimal parameters for quality welds, with excellent appearance and low spatter. Appearance of weld and arc stability are better. The welding sources CV 400-I/500-I can be supplemented with a remote control, through which the operator can smoothly control both, the arc voltage and wire feed speed.
Source CV 400-I has selection of two magnitudes of inductance, which give to operator the possibility of choice of required output characteristics.

Low inductance of connection is a typical use for short arched weld of mild steel, particularly on thin materials or when using shielding gas CO2.

High inductance of connection is more suitable for short arched weld on thick materials and for use of mixture of shielding gases.

Asssembly of transformer, reactance coil and rectifier is covered with special sealing and insulating material, protecting circuits against moisture and corrosive influence of atmosphere.

Sources IDEALARC CV 400-I/500-I are designed for use in the most heavy-duty industrial operations, where user will appreciate their verified robust design, whose reliability results from more than 100-years of experience, which the LINCOLN ELECTRIC firm has. The sources are in compliance with ISO 9002.
These features, which are very important for users, are supported by 3-year warranty. Sources IDEALARC CV 400-I/500-I can be used with a great range of wire feeders, with possibilities of choice of connecting cables length, location of feeder, choice of type of undercarriage, addition of welding gun cooled by water etc.
Recommended are semiautomatic wire feeders Lincoln LN-7, LN-542, LN-742, LN-25 and LN 27.

Advantage Lincoln

  • Robust electronic circuits ensure very long life, even in the heaviest conditions for operation.
  • CV 400-I, precision and reliability in the sequence of setting is improved by digital voltmeter/ampermeter.
  • Outlet terminals for easy connection of welding cables, connection „TWIST – MATE“ ensures quick change of polarity.
  • 14-pin connector output for easy connection of wire feeder, with auxiliary voltage 115V or 42VAC.
  • Condition and activity of all circuits for quick and easy repair is controlled by microprocessor.
  • Compact dimensions require minimal area for location on working place.
  • Removable undercarriage – source can be located in three sets put vertically on one another.
  • Sources contain control plate with diagnostics for attendance warning that, there is something wrong.
  • Electronic circuits automatically equalize fluctuation of inlet voltage + - 10%.
  • Possibility of remote control connection for smooth control of wire feed speed and welding voltage.
  • Socket 220 VAC for connection of water cooler.
  • Easy attendance.
  • Electronic and thermostatic protection against current and temperature overloading with thermal indicator of light.
  • Main switch connected with control light.
  • 3-year warranty for parts and labour.
  • Made in compliance with ISO 9002.

Technical specification

Source CV - 400-I CV - 500-I
Working cycle
(period 10min.)
% 60 / 100 60 / 100
Welding current A 400 / 300 500 / 400
Arc voltage V 34 / 29 39 / 34
Open-circuit voltage (max) V 50 50
Range of welding current A 50 - 400 60 - 500
Range of welding voltage V 7 - 37 12 - 42
3-phase 50/60Hz supply V 230 / 400 230 / 400
Current supply-rated output A 59 / 34 75 / 42
Weight kg 136 174
Dimensions (H x W x L) mm 546x495x686 700x565x813

with LN-742

Recommended accessories

For CV 500, there is a possibility of choice from several types of undercarriages.
Water cooler magnum 8I K873-1.
Recommended semiautomatic wire feeders Lincoln LN-7, LN-542, LN-742, LN-25 and

Length of interconnecting cables, source – wire feeder, 2 – 8 m is standard, other dimensions according to agreement.


CZ WELD s.r.o., Pod brizkami 800, 530 02 Pardubice, Czech Republic, tel./fax: +420 466 303 210,