Hobart 125 EZ, H-9B manual Specifications, Duty Cycle And Overheating

SECTION 3 − SPECIFICATIONS

3-1. Specifications

Rated Welding	Maximum		Maximum Open-		Amperes Input at			Weight	Overall
					Rated Load Output
			Circuit Voltage			KVA	KW
Output	Amperage				115 V, 60 Hz, Single-			W/ Gun	Dimensions
				DC
					Phase
									Length: 16-7/8 in
90 A @ 19 Volts DC,					20	2.90	2.50	50 lb	(429 mm)
20% Duty Cycle									Width: 9-7/8 in
	125			29				(22.7 kg)
63 A @ 21 Volts DC,									(251 mm)
					15*	2.20*	1.77*
20% Duty Cycle*									Height: 12-1/8 in
									(308 mm)
Wire Type		Flux Cored				Wire Feed Speed Range
		.030 − .035 in			183 − 295 IPM (4.6 − 7.5 m/min) At No Load
And Dia
		(0.8 − 0.9 mm)			112 − 236 IPM (2.8 − 6.0 m/min) Feeding Wire

* CSA Rating

3-2. Duty Cycle And Overheating
										Duty Cycle is percentage of 10 min-
										utes that unit can weld at rated load
										without overheating.
	200									If unit overheats, thermostat(s)
										opens, output stops, and cooling
	135									fan runs. Wait fifteen minutes for
										unit to cool. Reduce amperage or
	100									duty cycle before welding.
Amperes										Y Exceeding duty cycle can
	80
										damage unit or gun and void
	60									warranty.
	40
Output
	20
	10	2	4	6	8	10		40	60	100
	1						20
				Duty Cycle %
				20% duty cycle at 90 amps
			2 Minutes Welding				8 Minutes Resting
Overheating
						0				A or V
							15			OR
						Minutes			Reduce Duty Cycle
										duty1 4/95 − 210 517-A
										OM-923 Page 9