1. specifications, 2. duty cycle and overheating – Miller Electric 340 User Manual

Page 9

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OM-193 696 Page 5

SECTION 2 – INSTALLATION

2-1.

Specifications

Rated Output

Max.

Open

Rated Input Amperage at Rated

Output

Model

100%

60%

45%

35%

Circuit

Voltage

230 V

380 V

400 V

520 V

Dimension (mm)

Weight

(kg)

340

190 A

27.6 V

245 A

29.8 V

- -

320 A

32.8 V

68

55 A

32 A

32 A

23 A

510 x 650 x 1010

105

440

290 A

31.6 V

375 A

35 V

420 A

36.8 V

- -

78

80 A

47 A

47 A

34 A

600 x 730 x 1150

175

* While idling

2-2.

Duty Cycle and Overheating

Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.

Y

Exceeding duty cycle can
damage unit and void
warranty.

W

E

L

D

IN

G

AMPERES

% DUTY CYCLE

600

500

400

300

30

40

50

60

70 80 90100

200

35

25

Rated Output

100

340

600

500

400

300

30

40

50

60

70 80 90100

700

35

25

Rated Output

200

440

W

E

L

D

IN

G

AMPERES

% DUTY CYCLE

4.5 Minutes Welding

5.5 Minutes Resting

3.5 Minutes Welding

6.5 Minutes Resting

Overheating

0

15

A or V

OR

Reduce Duty Cycle

Minutes

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440