2-2 INSTALLATION Manual 0463 413 001
2.04 Mains Supply
NOTE!
Mains suppy requirments for CE version
This equipment complies with IEC 61000-3-12 provided that the short-circuit
power is greater than or equal to Sscmin at the interface point between the
user's supply and the public system. It is the responsibility of the installer or
user of the equipment to ensure, by consultation with the distribution network
operator if necessary, that the equipment is connected only to a supply with a
short-circuit power greater than or equal to Sscmin. Refer to the technical data
in the TECHNICAL DATA chapter.
The supply voltage should be within 230VAC ± 10% or 120 V ± 10%. Too low a supply voltage may cause poor
welding performance in Stick mode such as the arc snung out during welding. Too high a supply voltage
will cause components to overheat and possibly fail. Contact the local electric utility for information about the
type of electrical service available, how proper connections should be made, and inspection required. The line
disconnect switch provides a safe and convenient means to completely remove all electrical power from the
welding power supply whenever necessary to inspect or service the unit. If no disconnect switch is available
then unplug the power cord from the wall.
The Welding power source must be:
• Correctly installed, if necessary, by a qualified electrician.
• Correctly earthed (electrically) in accordance with local regulations.
• Connected to the correct size power point and fuse as table below.
Do not connect the input (WHITE or BLACK) conductor to the ground terminal. Do not connect the ground
(GREEN) conductor to an input line terminal.
!
WARNING
The power source must be electrically connected by a qualified electrical
trades-person. Damage to the PCA (Power Control Assembly) could occur if
265 VAC or higher is applied to the primary power cable.
WARNING
ELECTRIC SHOCK can kill; SIGNIFICANT DC VOLTAGE is present after removal
of input power. DO NOT TOUCH live electrical parts..
2.4.1 Recommended Fuse Sizes and Minimum Cable Size
WARNING
An electrical shock or fire hazard is probable if the following electrical service
guide recommendations are not followed. These recommendations are for a
dedicated branch circuit sized for the rated output and duty cycle of the welding
power source.
50/60Hz single phase supply
Supply voltage 230V AC 120V AC
Input current at maximum output 30 Amps 30 Amps
Maximum recommended fuse* or circuit breaker rating
*Time delay fuse UL class RK5. Refer to UL 248
30 Amps 30 Amps
Maximum recommended fuse* or circuit breaker rating
*Normal operating UL class K5. Refer to UL 248
50 Amps 50 Amps
Minimum recommended cord size 12 AWG (4 mm
2
) 12 AWG (4 mm
2
)
Maximum recommended extension cord length 50 ft (15m) 25 ft (8m)
Minimum recommended grounding conductor size 12 AWG (4 mm
2
) 12 AWG (4 mm
2
)