Miller Delta-Fab OM-2241, Owner'S Manual

Page: 22 / 36

OM-2241 Page 18
3-13. Electrical Service Guide
Input Voltage (V) 230 460 575
Input Amperes (A) At Rated Output 69 34.5 27.5
Max Recommended Standard Fuse Rating In Amperes
1
Time-Delay Fuses
2
80 40 30
Normal Operating Fuses 3 100 50 40
Min Input Conductor Size In AWG 4 4 8 10
Max Recommended Input Conductor Length In Feet (Meters)
237
(72)
422
(129)
444
(135)
Min Grounding Conductor Size In AWG 4 8 10 10
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.
3-14. Placing Jumper Links
Ref. 800 103-A
! Disconnect and lockout/tag-
out input power before
installing or moving jumper
links.
Check input voltage available at
site.
1
Jumper Link Label
Check label − only one is on unit.
2 Jumper Links
Move jumper links to match input
voltage.
Close and secure access door, or
go on to Section 3-15.
Tools Needed:
2
1
Do not overtighten
jumper link nuts.
230 VOLTS
Ref. S-174 973-B
575 VOLTS 460 VOLTS
3/8 in.
3/8 in.