Miller Dynasty 400 Owner's Manual page 45

D. Maxstar 800 Models
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommen-
dations are for an individual branch circuit sized for the rated output and duty cycle of one welding power source. In individual
branch circuit installations, the National Electrical Code (NEC) allows the receptacle or conductor rating to be less than the rating
of the circuit protection device. All components of the circuit must be physically compatible. See NEC articles 210.21, 630.11, and
630.12.
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Actual input voltage should not be 10% less than minimum (5% for 380 volt CE models) and/or 10% more than maximum input voltages
listed in table. If actual input voltage is outside this range, output may not be available.
NOTICE – INCORRECT INPUT POWER can damage this welding power source. Phase to ground voltage shall not exceed +10% of rated input
voltage.
CE-marked equipment shall only be used on a supply network that is a three-phase, four-wire system with an earthed neutral.
Rated Supply Voltage (V)
Rated Maximum Supply Current I
Rated Effective Supply Current I
Maximum Recommended Standard Fuse Rating In Amperes
Time Delay Fuses 2
Normal Operating Fuses 3
Maximum Recommended Supply Conductor Length In Feet (Me-
ters) 4
Raceway Installation
Minimum Supply Conductor Size In AWG (mm
Minimum Grounding Conductor Size In AWG (mm
Flexible Cord Installation
Minimum Supply Conductor Size In AWG (mm
Reference: 2020 National Electrical Code (NEC) (including article
630)
Rated Supply Voltage (V)
Rated Maximum Supply Current I
Rated Effective Supply Current I
Maximum Recommended Standard Fuse Rating In Amperes
Time Delay Fuses 2
Normal Operating Fuses 3
Maximum Recommended Supply Conductor Length In Feet (Meters)
Raceway Installation
Minimum Supply Conductor Size In AWG (mm
Minimum Grounding Conductor Size In AWG (mm
Flexible Cord Installation
Minimum Supply Conductor Size In AWG (mm
* Connect per raceway installation
Reference: 2020 National Electrical Code (NEC) (including article 630)
1 If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.
2 "Time-Delay" fuses are UL class "RK5" . See UL 248.
3 "Normal Operating" (general purpose - no intentional delay) fuses are UL class "K5" (up to and including 60 amps), and UL class "H" ( 65 amps
and above).
4 Maximum total length of copper input conductors in entire installation, raceway and/or flexible cord.
5 Raceway conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment
per NEC Table 310.15(B)(16) and is based on allowable ampacities of insulated copper conductors having a temperature rating of 75°C (167°F)
with not more than three single current-carrying conductors in a raceway.
6 Flexible cord conductor size is based on NEC Table 400.5(A)(1) for SOOW 600V 90°C (194°F) jacketed cable in a 30°C (86°F) ambient tem-
perature. See NEC Table 310.15(B)(2)(a) for ambient temperature correction factors. Flexible cord used for connection to the power supply sys-
tem shall comply with the requirements of CSA C22.2 No. 49.
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Complete Parts List is available at www.MillerWelds.com
(A)
1max
(A)
1eff
1
2 ) 5
2 ) 5
2 ) 6
(A)
1max
(A)
1eff
1
2 ) 5
2 ) 5
2 ) 6
3-Phase
208 230 380
120.0 109.0 65.0
70.0 62.0 37.0
150 125 80
175 150 90
96 (29) 75 (23) 132 (40)
4 (25) 6 (16) 8 (10)
6 (16) 6 (16) 8 (10)
2 (35) 2 (35) 6 (16)
208 230
126.0 112.0
97.0 87.0
150 125
175 150
4 98 (30) 122 (37)
3 (35) 3 (35)
6 (16) 6 (16)
* 2 (35)
400 460 575
61.0 53.0 42.0
35.0 30.0 24.0
70 60 50
90 70 60
148 (45) 129 (39) 203 (62)
8 (10) 10 (6) 10 (6)
8 (10) 10 (6) 10 (6)
8 (10) 8 (10) 10 (6)
1-Phase
400 460 575
61.0 53.0 41.0
48.0 41.0 32.0
70 60 50
90 70 60
130 (40) 172 (52) 275 (84)
8 (10) 8 (10) 8 (10)
8 (10) 8 (10) 10 (6)
6 (16) 6 (16) 8 (10)
OM-275857 Page 35