.
A complete Parts List is available at www.HobartWelders.com
OM-260 274 Page 17
Elec Serv 2011
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08
5-8. 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.
60 Hz Single Phase
Input Voltage (V)
230 Volts AC
115 Volts AC
Input Amperes (A) At Rated Output
24
A 20 ampere
individual branch
circuit
protected by
time-delay fuses
or circuit breaker
is required.
See Section 4-3
Max Recommended Standard Fuse Rating In Amperes
1
Time-Delay Fuses
2
30
Normal Operating Fuses
3
35
Min Input Conductor Size In AWG
4
14
Max Recommended Input Conductor Length In Feet (Meters)
53
(16)
Min Grounding Conductor Size In AWG
4
14
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.
5-9. Extension Cord Data (Use Shortest Cord Possible)
.
When calculating max. cord length, remember to include conductor length from line disconnect device to input power receptacle.
Input Voltage
Input Power
Phase
Hertz
Conductor Size
Max. Cord Length
115 V
1
60
14 AWG
25 ft (8 m)
115 V
1
60
12 AWG
55 ft (17 m)
115 V
1
60
10 AWG
100 ft (30 m)
230 V
1
60
14 AWG
53 ft (16 m)
