Electrical Service Guide - Miller Auto-Line Invision 352 MPa Technical Manual

4-6. 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.
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda-
tions are for a dedicated circuit sized for the rated output and duty cycle of the welding power source.
In dedicated 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.
Rated Supply Voltage (V)
Rated Maximum Supply Current I
Maximum Effective Supply Current I
Maximum Recommended Standard Fuse Rating In Amperes
Maximum Recommended Supply Conductor Length In Feet (Meters)
Raceway Installation
Minimum Supply Conductor Size In AWG (mm
Minimum Grounding Conductor Size In AWG (mm
Rated Supply Voltage (V)
Rated Maximum Supply Current I
Maximum Effective Supply Current I
Maximum Recommended Standard Fuse Rating In Amperes
Maximum Recommended Supply Conductor Length In Feet (Meters)
Raceway Installation
Minimum Supply Conductor Size In AWG (mm
Minimum Grounding Conductor Size In AWG (mm
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.
TM-246193 Page 12
(A)
1max
(A)
1eff
2
Time-Delay Fuses
3
Normal Operating Fuses
2 5
)
2) 5
(A)
1max
(A)
1eff
2
Time-Delay Fuses
3
Normal Operating Fuses
2 5
)
2) 5
208
54.1
34.2
1
60
80
4
78 (24)
8 (10)
8 (10)
208
51.5
28.7
1
60
70
4
60 (18)
10 (6.0)
10 (6.0)
Elec Serv 2020−02
60 Hz 1-Phase
230 400 460
48.4 26.6 22.8
30.6 16.8 14.4
60 30 25
70 40 30
96 (29) 118 (36) 103 (31)
8 (10) 12 (4.0) 14 (2.5)
8 (10) 12 (4.0) 14 (2.5)
60 Hz 3-Phase
230 400 460
46.5 26.3 22.6
26.3 14.9 13.0
50 30 25
60 35 30
73 (22) 88 (27) 118 (36)
10 (6.0) 14 (2.5) 14 (2.5)
10 (6.0) 14 (2.5) 14 (2.5)
Invision 352 MPa
575
17.8
11.3
20
25
161 (49)
14 (2.5)
14 (2.5)
575
18
10.1
20
25
185 (56)
14 (2.5)
14 (2.5)