Electrical Service Guide; Placing Jumper Links - Miller Electric OM-2241 Owner's Manual

3-11. Electrical Service Guide

Input Voltage
Input Amperes At Rated Output
Max Recommended Standard Fuse Rating In Amperes
Normal Operating 3
Min Input Conductor Size In AWG 4
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG 4
Reference: 1999 National Electrical Code (NEC)
1 Consult factory for circuit breaker applications.
2 "Time-Delay" fuses are UL class "RK5" .
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.

3-12. Placing Jumper Links

230 VOLTS
1
Tools Needed:
3/8 in
3/8 in
1
2
Time-Delay
460 VOLTS
230 460
69 34.5
80 40
100 50
4 8
237 422
(72) (129)
8 10
Y Disconnect and lockout/tag-
out input
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 3-13.
575 VOLTS
Ref. S-174 973-A
2
Do not overtighten
jumper link nuts.
575
27.5
30
40
10
444
(135)
10
power before
Ref. 800 103-A
OM-2241 Page 15