Miller OM-246 466B, Руководство пользователя

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OM-246 466 Page 23
3-16. Electrical Service Guide
Failure to follow these fuse and circuit breaker recommendations could create an electric shock or fire hazard. These
recommendations are for a dedicated branch circuit that applies to the rated output and duty cycle of the welding power source.
INCORRECT INPUT POWER can damage this welding power source. This welding power source requires a CONTINUOUS supply of
50/60 Hz ( + 10%) power at + 10% of rated input voltage. Phase to ground voltage shall not 10% of rated input voltage. Do not
use a generator with automatic idle device (that idles engine when no load is sensed) to supply input power to this welding power
source.
.
Actual input voltage should not exceed
±
10% of indicated required input voltage. If actual input voltage is outside of this range, output may not
be available.
50/60 Hz Three Phase
Input Voltage (V) 208 230 380 400 460 575
Input Amperes (A) At Rated Output 19.5 17.6 10.5 10.0 8.7 7.7
Max Recommended Standard Fuse Rating In Amperes
1
Time-Delay Fuses
2
20 20 10 10 10 8
Normal Operating Fuses
3
30 25 15 15 15 10
Min Input Conductor Size In AWG
4
12 12 14 14 14 14
Max Recommended Input Conductor Length In Feet (Meters)
94
(29)
116
(35)
204
(62)
226
(69)
299
(91)
467
(142)
Min Grounding Conductor Size In AWG
4
12 12 14 14 14 14
Reference: 2008 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 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.