Hobart Welding Products OM-2208 manual Introduction, Specifications, Duty Cycle And Overheating

SECTION 2 – INTRODUCTION

2-1. Specifications

				RMS Amps Input at Rated Load
	Voltage	Amperage	Max. Open-	Output, 60 Hz 3-Phase at NEMA Load
Rated Output at				Voltages and Class I Rating
	Range in	Range in	Circuit
60% Duty Cycle	CV Mode	CC Mode	Voltage	230 V	460 V	575 V	KVA	KW
300 A at 32 VDC, 3-Phase	10–35 V	5–400 A	90 VDC	30.5	18.9	15.2	12.2	11.6
				(0.21*)	(0.10*)	(0.08*)	(0.09*)	(0.04*)
225 A at 29 VDC, 1-Phase				47.4	24.5	– –	11.3	7.6
				(0.34*)	(0.14*)		(0.09*)	(0.04*)

*While idling

**See Section 3-5 for additional information.

2-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, output stops, a Help message is displayed (see Section 5-2), and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or voltage, or duty cycle before welding.

Y Exceeding duty cycle can damage unit and void warranty.

60% Duty Cycle

6 Minutes Welding	4 Minutes Resting
Overheating
0	A or V
	15
	OR
Minutes	Reduce Duty Cycle

sduty1 5/95 / SA-207 877

OM-2208 Page 9