Selecting Weld Cable Sizes; Remote Receptacle Information - Miller TRAILBLAZER 302 AIR PAK Owner's Manual

5-10. Selecting Weld Cable Sizes*

Weld Output
Terminals
!
Stop engine before
connecting to weld
output terminals.
!
Do not use worn,
damaged, under-
sized, or poorly
spliced cables.
This chart is a general guideline and may not suit all applications. If cables overheat, use next size larger cable.
*
**Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
2
( ) = mm for metric use
***For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.

5-11. Remote Receptacle Information

A J
K
I
B
C L N
H
M
D G
F
E
*The remaining sockets are not used.
OM-229 930 Page 28
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
100 ft (30 m) or Less
10 − 60% 60 − 100%
Welding
Duty
Amperes
Cycle Cycle
100 4 (20)
150 3 (30)
200 3 (30)
250 2 (35)
300 1 (50) 1/0 (60)
350 1/0 (60) 2/0 (70)
400 1/0 (60) 2/0 (70)
24 VOLTS AC
115 VOLTS AC
REMOTE
OUTPUT
CONTROL
REMOTE
804 857-A
COMPRESSOR
ON/OFF
Not Exceeding***
150 ft 200 ft
(45 m) (60 m)
Duty
4 (20) 4 (20) 3 (30)
3 (30) 2 (35) 1 (50)
2 (35) 1 (50) 1/0 (60)
1 (50) 1/0 (60) 2/0 (70)
2/0 (70) 3/0 (95)
3/0 (95) 4/0 (120)
3/0 (95) 4/0 (120)
Socket*
A 24 volts AC. Protected by supplementary protec-
tor CB4.
B Contact closure to A completes 24 volt AC
contactor control circuit and keeps engine at Run
speed in all modes.
I 115 volts AC. Protected by supplementary protec-
tor CB3.
J Contact closure to I completes 115 volts AC
contactor control circuit.
C +10 volts DC output to remote control.
D Remote control circuit common.
E 0 to +10 volts DC input command signal from
remote control.
F Current feedback: 1 volt per 100 amperes.
H Voltage feedback: 1 volt per 10 arc volts.
G Circuit common for 24 and 115 volts AC circuits.
GND
K Chassis common.
L Remote compressor on/off (select compressor
output on front panel). Grounding pin L stops com-
pressor.
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 − 100% Duty Cycle
2 (35) 1 (50) 1/0 (60)
1/0 (60) 2/0 (70) 3/0 (95)
2/0 (70) 3/0 (95) 4/0 (120) 4/0 (120)
2 ea. 2/0
3/0 (95) 4/0 (120)
(2x70)
2 ea. 2/0 2 ea. 3/0
4/0 (120)
(2x70) (2x95)
2 ea. 2/0 2 ea. 3/0 2 ea. 3/0
(2x70) (2x95) (2x95)
2 ea. 2/0 2 ea. 3/0 2 ea. 4/0
(2x70) (2x95) (2x120)
Socket Information
400 ft
(120 m)
1/0 (60)
3/0 (95)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
2 ea. 4/0
(2x120)
S-0007-F