Electrical Service Guide - Miller Electric OM-225A Owner's Manual

2-5. Connecting Work Clamp And Gas/Air Supply
Use only clean, dry gas/air with 70 to 150 psi
(483 to 1034 kPa) pressure.

2-6. Electrical Service Guide

Input Voltage
Input Amperes At Rated Output
Max Recommended Standard Fuse Or Circuit Breaker Rating
In Amperes
Reference: 1993 National Electrical Code (NEC).
OM-225 Page 12
2
3
4
5
6
1
From Gas/Air Supply
Three-Phase
230
24
45
1 Work Clamp
2 Workpiece
Connect work clamp to a clean,
paint-free location on workpiece, as
close to cutting area as possible.
3 Gas/Air Input (Female 1/4
NPT)
4 Quick Connect Gas Fitting
5 Standard Pipe Fitting (Male
1/4 Inch)
Obtain desired fitting. Wrap threads
with teflon tape or apply pipe seal-
ant, and install fitting onto unit.
6 Hose
Obtain suitable hose according to
installed fitting, and connect to fit-
ting. Route hose to gas/air supply.
Adjust gas/air pressure according
to Section 3-1.
Y Incorrect plasma gas can
cause torch and power
source damage. Use only air
or nitrogen for the plasma
gas.
Ref. ST-801 390 / ST-801 391
Single-Phase
460 230 460
12 48 24
25 80 40
S-0092J