Miller Electric 350P manual Specifications, Duty Cycle And Overheating

.A complete Parts List is available at www.MillerWelds.com

SECTION 3 − INSTALLATION

3-1. Specifications

Max. Open

Amps Input at Rated Output

Rated Output

Circuit

60 Hz

Voltage

200 V

230 V

460 V

575V

KVA

KW

300 A at

350 A at

90

Single-Phase

69

61

30

24

13.1

11.2

32 VDC,

32 VDC,

(1.7*)

(1.5*)

(0.75*)

(0.5*)

60% Duty

40% Duty

34

30

15

12

11.6

11.5

Cycle

Cycle

Three-Phase

(1.7*)

(1.5*)

(0.75*)

(0.5*)

* While idling

Wire Type and Diameter

Wire Feed Speed

Dimensions

Net Weight

Solid Steel

Stainless Steel

Aluminum

50−700 IPM

H: 34 in. (864 mm)

181 lb

(1.3−17.8 m/min)

W: 19 in. (483 mm)

(82 kg)

.023 − .045 in.

.030 − .045 in.

.035 − .047 in.

D: 41 in. (1041 mm)

(0.8 − 1.1 mm)

(0.8 − 1.1 mm)

(0.9 − 1.2 mm)

Operating Temperature Range: −20C to +40C

Storage Temperature Range: -30C to + 50C

3-2. Duty Cycle And Overheating

WELDING AMPERES

500

400

300

250

225

200

150

10010 15 20 25 30 40 50 60 70 80 90 100

% DUTY CYCLE

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

If unit overheats, thermistors open, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or voltage, or duty cycle before welding.

NOTICE − Exceeding duty cycle can damage unit and void warranty.

60% Duty Cycle At 300 Amperes

40% Duty Cycle At 350 Amperes

6 Minutes Welding 4 Minutes Resting

4 Minutes Welding 6 Minutes Resting

Overheating

0 A or V

15

OR

Reduce Duty Cycle

Minutes

sduty1 5/95 / 217 442-A

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