Section 7 − operating auxiliary equipment – Miller Electric 301 G User Manual

Page 30

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OM-4411 Page 26

SECTION 7 − OPERATING AUXILIARY EQUIPMENT

7-1. 60 Hz Generator Power Receptacles And Circuit Breakers

Ref. 211 909

Y If unit does not have GFCI re-

ceptacles, use GFCI-protected

extension cord.

.

Weld output and 60 Hz generator
power output at receptacles RC1
and RC2 are not available at the
same time. When welding, gen-
erator power is available from AC
receptacle RC3 only (see Sec-
tion 7-2).

.

Generator power is available at
receptacles RC1 and RC2 only at
1800 rpm. If generator is not
locked at 1800 rpm, engine
speed increases in response to
weld load and generator power
output stops at receptacles RC1
and RC2. Generator power load
does not affect engine speed.

1

240 V 50 A AC Receptacle RC1

RC1 supplies 60 Hz single-phase

power at 1800 rpm. Maximum output

is 5 kVA/kW(20 A at 240 volts ac). For

60 Hz generator power at RC1, set

controls as shown in table.
2

120 V 20 A AC Duplex

Receptacle RC2

RC2 supplies 60 Hz single-phase

power at 1800 rpm. Maximum output

from RC2 is 2.4 kVA/kW (20 A at 120

volts ac).
3

Circuit Breaker CB1

CB1 protects receptacles RC1 and

RC2 from overload. If CB1 opens, the

receptacles do not work. Place switch

in On position to reset breaker.
4

Circuit Breaker CB3

CB3 protects RC2 from overload. If

CB3 opens, the receptacle does not

work. Press button to reset breaker.

.

If circuit breaker continues to
open, contact Factory
Authorized Service Agent.

Combined output of all receptacles

limited to 5 kVA/kW continuous rating

of the generator.
EXAMPLE: If 10 A is drawn from 120

V duplex receptacle RC2, only 16 A is

available at 240 V receptacle RC1.
(120 V x 10 A) + (240 V x 16 A) = 5

kVA/kW

Controlling Engine Speed And Weld/Generator Power Output

1800 rpm

(Power Speed)

Continuous

No Load: 2400 rpm

(Idle Speed)

Load: 3600 rpm

(Weld Speed)

Either

Run/Idle
position.

Engine Controls

Engine Speed

Generator Power

Output

Weld Output

5 kW/kVA Total From

All AC Receptacles

2.4 kW/kVA at 60-120

Hz From AC

Receptacle RC3 Only

No Load: 1800 rpm

(Idle Speed)

Load: 3000 rpm

(Weld Speed)

Welding Not

Recommended

3600 rpm:

20 − 300 A

3000 rpm:

20 − 220 A

5 kW/kVA Total From

All AC Receptacles

At 1800 rpm.

At 3000 rpm, Output

Available Only At 2.4

kW/kVA 60-120 Hz AC

Receptacle RC3

2

3

See Section

7-2 for RC3
information.

1

4

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