Miller Electric Big Blue 251D Welding System User Manual


 
OM-480 Page 20
SECTION 7 OPERATING AUXILIARY EQUIPMENT
12
7-1. 120 Volt Duplex And Optional GFCI Receptacles
Ref. 206 029
4
3
Y If unit does not have GFCI re-
ceptacles, use GFCI-pro-
tected extension cord.
1 120 V 15 A AC Receptacle
RC1
2 120 V 15 A AC Receptacle
RC2
3 120 V 20 A AC GFCI
Receptacles GFCI1 And
GFCI2 (Optional)
Receptacles supply 60 Hz single-
phase power at weld/power speed.
4 Circuit Breakers CB1 And
CB2
CB1 protects RC1/GFCI1 and CB2
protects RC2/GFCI2 from over-
load. If CB1 or CB2 opens, the
receptacle does not work.
. If a circuit breaker continues to
open, contact Factory Autho-
rized Service Agent.
If a ground fault is detected, GFCI
Reset button pops out and
receptacle does not work. Check
for faulty tools plugged in
receptacle. Press button to reset.
. At least once a month, run en-
gine at weld/power speed and
press test button to verify GFCI
is working properly.
Maximum output from each duplex
receptacle is 1.8 kVA/kW, and 3
kVA/kW from all receptacles. Gen-
erator power is not affected by weld
output.
EXAMPLE: If 15 A is drawn from
RC1, only 10 A is available at RC2:
(120 V x 15 A) + (120 V x 10 A) = 3.0
kVA/kW