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Operation, B-2 design features and advantages, Duty cycle – Lincoln Electric IM581 SAE400 User Manual

Page 16

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B-2

OPERATION

B-2

DESIGN FEATURES AND ADVANTAGES

FOR STICK WELDING
• Excellent DC constant current output for stick weld-

ing applications.

• Continuous adjustment of both voltage and current

for unsurpassed welds on demanding jobs.

• Remote control capability standard.

FOR AUXILIARY POWER

• 3,000 watts of 115/230 VAC, 60 Hz auxiliary power.

• One 15 amp 115 VAC duplex receptacle for up to 26

amps of 115 VAC power.

• One 15 amp, 230 VAC duplex receptacle for up to 13

amps of 230 VAC power.

• Weld and AC auxiliary power at the same time (with-

in the limits shown on the chart below).

FOR COMPRESSED AIR

• 35 CFM at 100 PSI for air arc gouging and air pow-

ered tools.

• 11 Gallon air receiver tank system with integral over-

pressure relief valve for smooth air delivery.

• No welding output derating required at maximum

compressor load.

OTHER FEATURES
• Perkins 4-cylinder, water cooled diesel engine.

Designed for long life, easy maintenance and excel-
lent fuel economy.

• Engine protection system shuts the engine down for

low oil pressure or high coolant temperature.

• Gauges for engine oil pressure, coolant temperature,

battery charging ammeter, compressor air pressure
and compressor oil pressure.

• Indicator light for compressor operation.

• Engine hour meter standard.

• Extended range 22.5 gallon (85.1 L) fuel tank.

DUTY CYCLE

Duty cycle is based on a ten minute period and opera-
tion in an ambient temperature of 104°F(40°C).

The SAE400 WELD’N AIR is NEMA rated at 60% duty
cycle. Duty cycle is based on a ten minute period.
Therefore, a 60% duty cycle welder can be operated at
nameplate rated output for 6 minutes out of every 10
minute period without overheating.

The auxiliary power can be used continuously (100%
duty cycle) within its rated current capacities.

The air compressor is rated at a 60% duty cycle based
on a ten minute period as described above.

SAE400 WELD’N AIR

Welding

Using Only

Using Only

Total

Current, Amps

115V Circuit,

230V Circuit,

Aux.

@ NEMA Arc

Amps

Amps

kVA

Volts

0

26

13

3.0

100

19.5

9.75

2.25

200

13

6.5

1.5

300

6.5

3.25

0.75

400

0

0

0