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Section 7 − operating auxiliary equipment, 1. 120 volt and 240 volt duplex receptacles – Miller Electric Miller DU-OP User Manual

Page 36

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OM-494 Page 32

SECTION 7 − OPERATING AUXILIARY EQUIPMENT

7-1. 120 Volt And 240 Volt Duplex Receptacles

190 376

Y Be sure equipment connected to the

240 V receptacles is GFCI-pro-

tected.

.

Generator power is not affected by
position of Welder Selector switch.

.

4 kVA/kW generator power output is
shared by all receptacles.

1

240 V 20 A AC Receptacle RC1

2

120 V 20 A AC GFCI Receptacle

GFCI 1

3

240 V 20 A AC Receptacle RC2

4

120 V 20 A AC GFCI Receptacle

GFCI 2

Receptacles supply 60 Hz single-phase

power at weld/power speed.
If a ground fault is detected, the GFCI re-

ceptacle(s) circuit opens to disconnect the

faulty equipment and the GFCI Reset but-

ton pops out. Check for damaged tools,

cords, plugs, etc. connected to the recep-

tacle. Press button to reset receptacle and

resume operation.

.

At least once a month, run engine at
weld/power speed and press Test but-

ton to verify GFCI is working properly.

5

Circuit Breakers CB1 And CB2

6

Circuit Breakers CB3 And CB4

CB1 and CB2 protect RC1 and GFCI 1 from

overload. If CB1 or CB2 opens, RC1 does

not work. 120 volts may still be present at

RC1. If CB2 opens, GFCI 1 does not work.

Press button to reset breaker.
CB3 and CB4 protect RC2 and GFCI 2 from

overload. If CB3 or CB4 opens, RC2 does

not work. 120 volts may still be present at

RC2. If CB4 opens, GFCI 2 does not work.

Press button to reset breaker.

.

If a circuit breaker continues to open,
contact Factory Authorized Service

Agent.

Maximum output from each 120 volt GFCI

receptacle is 2.4 kVA/kW. Maximum output

from each 240 volt duplex receptacle half is

4.0 kVA/kW.
Total combined output from all receptacles

is 4 kVA/kW.
EXAMPLE: If 12 A is drawn from RC1, only

9 A is available at GFCI 1:
(240 V x 12 A) + (120 V x 9 A) = 4.0 kVA/kW

.

Generator power is not affected by
weld output.

1

5

2

3

6

4