Miller Electric STR 450, Руководство пользователя

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OM-236 031 Page 14
3-12. Positioning Jumper Links
!
Disconnect and lockout/tag-
out input power before
installing or moving jumper
links.
Check input voltage available at
site.
1
Jumper Links Access
Remove side panel.
2
Jumper Link Label
Check label − only one is on unit.
3 Input Voltage Jumper Links
Move jumper links to match input
voltage.
Close and secure side panel.
Ref. S9215056
3-13. 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.
3-Phase
Input Voltage (V) 230 400
Input Amperes (A) At Rated Output 73 42
Max Recommended Standard Fuse Rating In Amperes
1
Time-Delay Fuses
2
90 50
Normal Operating
Fuses3
110 60
Min Input Conductor Size In mm
2
(AWG)
4
10 (8) 6 (10)
Max Recommended Input Conductor Length In Meters (Feet) 33 (107) 67 (219)
Min Grounding Conductor Size In mm
2
(AWG)
4
10 (8) 6 (10)
** Power cord supplied with the unit is sized for 230V operation. Larger power cord may be required for cable lengths greater than 3 meters.
Consult national and local regulations.
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 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
310.16. 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.