Miller Electric 1251 Welder User Manual


 
. A complete Parts List is available at www.MillerWelds.com
OM-201 872 Page 10
SECTION 4 − INSTALLATION
4-1. Specifications
Amperes Input at Rated Load
Output 60 Hz, Three-Phase*
Rated
Type of
Plasma
Rated
Maximum
Open-
Duty Cycle
Rated
Output
Type of
Output
Plasma
Gas
Rated
Cutting
Capacity
Maximum
Open-
Circuit
40% 50% 80% 80%
Output
Output
Gas
Cutting
Capacity
Circuit
Voltage DC
208 V 230 V 460 V 575 V KVA KW
Voltage DC
55 49 24 19 19.1 18.2
100 A @
160 Volts
DC
Direct
Current,
Straight
Polarity
(DCEN)
9.2 CFM
(261
L/min) At
75 PSI
(517 kPa)
Air Or
Nitrogen
Only
1.25 in
(32 mm)
At 12 IPM
(305 mm/min)
265
*Power light will flash if torch trigger is pressed when unit is connected to single-phase input power indicating an incorrect power condition.
Amperes Input
at Rated Load
Output 50 Hz,
Three-Phase*
Rated
Output
Type of
Output
Plasma
Gas
Rated Cutting
Capacity
Maximum
Open-Circuit
Voltage DC
400 V KVA KW
Voltage DC
28 19.2 18.3
100 A @ 160
Volts DC, 80%
Duty Cycle
Direct Current,
Straight Polarity
(DCEN)
9.2 CFM
(261 L/min) At
75 PSI (517
kPa) Air Or
Nitrogen Only
1.25 in
(32 mm)
At 12 IPM
(305 mm/min)
265
*Power light will flash if torch trigger is pressed when unit is connected to single-phase input power indicating an incorrect power condition..