OM-279 Page 11
2-6. Connecting Gas/Air Supply
1 Unit Gas Fitting (Female 1/4
NPT)
2 Quick Connect Gas Fitting
3 Standard Gas Fitting
Obtain and install desired fitting.
4 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 3-2.
YIncorrect plasma gas can
cause torch and power
source damage. Use only air
or nitrogen for the plasma
gas.
Ref. 801 455
From Gas/Air Supply
3
Use only clean and dry gas/air with 70 to 150 psi
(483 to 1034 kPa) pressure.
2
1
4
2-7. Electrical Service Guide

Single Phase Three Phase

Input Voltage 200 230 460 230 460 575
Input Amperes At Rated Output 42.3 36.8 18.4 18.4 9.2 7.4
Max Recommended Standard Fuse Rating In Amperes 1
Time-Delay 250 45 20 20 10 8
Normal Operating 3 60 60 25 25 15 10
Min Input Conductor Size In AWG/Kcmil 8 10 14 14 14 14
Max Recommended Input Conductor Length In Feet (Meters) 110
(33) 97
(29) 153
(47) 77
(23) 307
(94) 479
(146)
Min Grounding Conductor Size In AWG/Kcmil 10 10 14 14 14 14
Reference: 1999 National Electrical Code (NEC)
1 Consult factory for circuit breaker applications.
2“Time-Delay” fuses are UL class “RK5” .
3“Normal Operating” (general purpose – no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and
above).