OWNER’S
MANUAL
July 1995
Form:
OM-116J
Effective With Serial No. KF943539
cover_om 4/95 – ST-052 359-D
PRINTED IN USA
1995 MILLER Electric Mfg. Co.
Thunderbolt
225
CC/AC Welding Power Source For SMAW (Stick) Welding
Rated
Welding
Output
Amperage
Range
Maximum
Open-
Circuit
Amperes Input
at Rated Load
Output 60 Hz,
Single-Phase
Overall Dimensions
Weight
Output
Voltage
230 V
KW
225 A @ 25
Volts AC, 20%
Duty Cycle
Low: 30 – 150A
High: 40 – 225A
80 VAC
47.5
(8.6)*
7.2
(0.22)*
Height: 21-1/2 in (546 mm)
Width: 12-1/2 in (318 mm)
Depth: 14 in (356 mm)
Net: 100 lb (45 kg)
Ship: 105 lb (48 kg)
*While idling