Hobart OM-1581 Wire Feeder Specifications, Gun Specifications, Duty Cycle And Overheating

SECTION 2 – SPECIFICATIONS

2-1. Wire Feeder Specifications

Specification	Description
Type Of Input Power	115 Volts AC, 3 Amperes At 50/60 Or 100 Hz Power
Control Circuit Voltage Provided At Gun	30 Volts DC
Wire Feed Speed Range	70-875 ipm (1.9-22.2 mpm)
Overall Dimensions	Length: 19 in (483 mm); Width: 9-1/4 in (235 mm); Height: 15-1/4 in (387 mm)
Maximum Spool Capacity	12 in (305 mm)
Cooling Method	Air-Cooled (A Models) Or Water-Cooled (W Models)
Weight (Feeder With Gun)	Models With 15 ft (4.6 m) Cable Assembly
	Net: 56 lb (25 kg); Ship: 58 lb (26 kg)
	Models With 30 ft (9.1 m) Cable Assembly
	Net: 63 lb (29 kg); Ship: 65 lb (30 kg)

2-2. Gun Specifications

Specification		Description
Input Voltage	30 Volts DC
Duty Cycle (Air-Cooled Models)	At 200	Amperes, 100% Using Argon Or Argon Mixture Shielding Gas
	At 250	Amperes, 60% Using Argon Or Argon Mixture Shielding Gas (See
	Section 2-3)
Duty Cycle (Water-Cooled Models)	At 400	Amperes, 100% Using Argon Or Argon Mixture Shielding Gas (See Sec-
	tion 2-3)
Wire Size Range	.030 Thru 1/16 in (0.8 Thru 1.6 mm) Aluminum Wire
	.030 Thru .045 in (0.8 Thru 1.1 mm) Hard Or Cored Wire

2-3. Duty Cycle And Overheating

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

Y Exceeding duty cycle can damage unit and void warranty.

Air-Cooled Models

100% Duty Cycle At 200 Amperes Using Argon 60% Duty Cycle At 250 Amperes Using Argon

Continuous Welding 6 Minutes Welding 4 Minutes Resting

Water-Cooled Models

100% Duty Cycle At 400 Amperes Using Argon

Continuous Welding

OM-1581 Page 9