Miller HF-251 Specifications

HF-251
Industrial/Light Industrial Applications
Quick
General Manufacturing
Tool and Die
Specs
Repair Shops
All-Purpose Maintenance
The Power of Blue
The HF-251 is compatible with power
sources made by other manufacturers.
For use with power sources with 14-socket
receptacle (5-socket adapter available).
Increase the flexibility and performance
of most AC, DC or AC/DC constant-current
welding machines with these portable
high-frequency arc starters and stabilizers.
The unit impresses high frequency on the
welding circuit and provides the arc control
needed for TIG welding.
With the addition of an HF unit,
your constant-current power source
can handle welds on aluminum,
magnesium, thin stainless steel,
brass, copper and a wide variety of
both ferrous and non-ferrous alloys.
Two versions (115 VAC, 50/60/100 Hz
and 230 VAC, 50/60 Hz) meet most
single-phase power configurations, and
all are rated at 60% duty cycle.
Specifications
(Subject to change without notice.)
Model Input Volts
HF-251D-1 115 VAC, 50/60/100 Hz
230 VAC, 50/60 Hz
HF-251-2
Processes
Gas Tungsten Arc
Welding (TIG)
.
®
Rated Output at 60% Duty Cycle
250 A
Warranted for 1 year, parts and labor.
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Input Power
Rated Output
Weight
Dimensions
H: 13 in (330 mm)
W: 9-1/4 in (235 mm)
D: 16 in (406 mm)
International Headquarters
Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125
Issued August 2007 • Index No. AY/5.0
High-Frequency Arc
Starter and Stabilizer
1-Phase Power
250 A, 60% Duty Cycle
HF-251D-1: 34 lb (15 kg)
HF-251-2: 36 lb (16 kg)
Power on/off switch with pilot light.
Start, off and continuous control.
Gas solenoid valve.
High-frequency intensity control.
Built-in postflow eliminates
contamination.
Protected secondary terminal.
Convenient, portable design can be
easily moved from location to location.
14-pin receptacle on front panel for
remote controls.
Net Weight
34 lb (15 kg)
36 lb (16 kg)
Web Site
www.MillerWelds.com