Electrical Service Guide (Maxstar) - Miller Dynasty 210 Owner's Manual

5-7. Electrical Service Guide (Maxstar)

A. Electrical Service Guide For Three-Phase Operation
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.
.
Actual input voltage should not fall below 108 volts AC or rise above 528 volts AC. If actual input voltage is outside this range, unit may not operate
according to specifications.
Input Voltage (V)
Rated Maximum Supply Current I
Maximum Effective Supply Current I
Max Recommended Standard Fuse Rating In Amperes
Min Input Conductor Size In AWG
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG
Reference: 2017 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 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 167°F (75°C) with not more than
three single current−carrying conductors in a raceway. 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.
B. Electrical Service Guide For Single-Phase Operation (Maxstar)
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.
.
Actual input voltage should not fall below 108 volts AC or rise above 528 volts AC. If actual input voltage is outside this range, unit may not operate
according to specifications.
Input Voltage (V)
Rated Maximum Supply Current I
Maximum Effective Supply Current I
Max Recommended Standard Fuse Rating In Amperes
Min Input Conductor Size In AWG
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG
Reference: 2017 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 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 167°F (75°C) with not more than
three single current−carrying conductors in a raceway. 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.
OM-270536 Page 24
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A complete Parts List is available at www.MillerWelds.com
(A)
1max
(A)
1eff
1
2
Time Delay Fuses
Normal Operating Fuses
4
4
(A)
1max
(A)
1eff
1
2
Time Delay Fuses
Normal Operating Fuses
4
4
208
20.5
11
25
3
30
14
58 (18)
14
120 208
27.4 35.8
17.3
30
3
40
12
33
(10) (13)
12
Elec Serv 2017−01
Three-Phase
240 400
17.7 10.4
10 6
20 10
25 15
14 14
78 (24) 221 (67) 319 (97)
14 14
Elec Serv 2017−01
Single-Phase
240 400
29.9 17.6
20 17 10
40 35 20
50 45 25
12 12 14
44 60 111
(18) (34)
12 12 14
480
8.7
5
10
15
14
14
480
14.6
8
15
20
14
160
(49)
14