Electrical Service Guide - Miller Si 160 Owner's Manual

3-9. Electrical Service Guide

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.
Input Voltage (V)
Input Amperes (A) At Rated Output
Max Recommended Standard Fuse Rating In Amperes
Min Input Conductor Size In mm
Max Recommended Input Conductor Length In Meters (Feet)
Min Grounding Conductor Size In mm
Reference: 2011 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). 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.
Notes
1
2
Time-Delay Fuses
3
Normal Operating Fuses
2 4
(AWG)
2 4
(AWG)
Si 160 Sti 160
230 230
30 30
35
35
45
45
4 (12) 4 (12)
24 (80) 24 (80)
4 (12) 4 (12)
Work like a Pro!
Pros weld and cut
STi 160 PCF
230
22
25
30
2.5 (14)
16 (53)
2.5 (14)
safely. Read the
safety rules at
the beginning
of this manual.
OM-261 767 Page 11