Delta 302 Owner's Manual download pdf (Page 19)

OM-223 Page 15

4-4. Duty Cycle And Overheating

Continuous Welding

Duty Cycle is percentage of 10 min-

utes that unit can weld at rated load

without overheating.

If unit overheats, thermostat(s)

opens, output stops, and cooling

fan runs. Wait fifteen minutes for

unit to cool. Reduce amperage or

duty cycle before welding.

NOTICE − Exceeding duty cycle

can damage unit and void warranty.

Overheating

0

15

V

OR

Reduce Duty Cycle

Minutes

duty1 4/95 / SA-168 918

100% Duty Cycle

4-5. Volt-Ampere Curves

Volt-ampere curves show mini-

mum and maximum voltage and

amperage output capabilities of

unit. Curves of other settings fall be-

tween curves shown.

B. 450 Amp Model C. 650 Amp Model

A. 300 Amp Model

va_curve1 − 4/95 − 171 224 / 171 225 / 171 226

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 43 44

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