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OM-2254 Page 19
5-3. Electrical Service Guide
NOTICE − INCORRECT INPUT POWER can damage this welding power source. Phase to ground voltage shall not exceed +10% of rated input
voltage.
NOTICE − Actual input voltage should not be 10% less than minimum and/or 10% more than maximum input voltages listed in table. If actual input
voltage is outside this range, output may not be be available.
60 Hz Three Phase
Input Voltage 230 400 460
Input Amperes At Rated Output 36.1 20.6 17.8
Max Recommended Standard Fuse Rating In Amperes
1
Time-Delay
2
40 25 20
Normal Operating
3
50 30 25
Min Input Conductor Size In AWG
4
10 12 14
Max Recommended Input Conductor Length In Feet (Meters)
96
(29)
175
(53)
150
(46)
Min Grounding Conductor Size In AWG
4
10 12 14
Reference: 2005 National Electrical Code (NEC) (includes article 630)
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).
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table
310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.
Notes