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INSTALLATION
A-3 A-3
IDEALARC DC-655
3 Phase transformer with
rectified DC output
INPUT POWER
THREE PHASE
Designates welder complies with
National Electrical Manufacturers
Association requirements EW 1
Class I with 100% duty cycle at
650Amps output. (Domestic,
Canadian, and Export models)
Designates welder complies with
both Underwriters Laboratories
(UL) standards and Canadian
Standards Association (CSA)
standards. (Canadian Model)
GMAW
FCAW
GRAPHIC SYMBOLS THAT APPEAR ON
RATING PLATE (LOCATED ON CASE BACK)
Constant Voltage Output
Characteristics
R
NEMA EW 1 (100%)
Designates welder complies with
International Electrotechnical
Commission requirements 974-1.
(European Models)
IEC 974-1
Designates welder complies with
low voltage directive and with
EMC directive. (European
models)
CE
Designates welder can be used
in environments with increased
hazard of electric shock.
(European models)
S
NRTL/C
Designates welder complies with
Underwriters Laboratories (UL)
standards. (Domestic Models)
R
NRTL
SMAW
SAW
Constant Current Output
Characteristics
Designates the degree of envi-
ronmental protection provided by
the power sources enclosure.
IP-23
Open Circuit Output Voltage
U
o
Input Voltage Rating(s)
U
1
Input Current Rating(s)
I
1
Output Voltage Rating(s)
U
2
Output Duty Cycle Rating(s)
X
Output Current Rating(s)
I
2