Section 3 − Installation; Specifications; Duty Cycle And Overheating - Miller SHOPMATE 300 DX Mode D'emploi

3-1. Specifications

Rated Welding Amperage/Voltage
Output Range
5 − 400A In CC
275 A @ 31 Volts
Mode
DC, 50% Duty
10 − 35V In CV
Cycle
Mode
*While idling

3-2. Duty Cycle And Overheating

Overheating
SECTION 3 − INSTALLATION
Max OCV−DC
85 VDC In
CC Mode
85 VDC In
CV Mode
50%dutycycle
5 Minutes Welding
0
Minutes
Amperes Input at Rated Load Output 60 Hz,
Single-Phase
200 V 230 V 460 V
66 57
*1.66 *1.66 *0.83
5 Minutes Resting
15
OR
Reduce Duty Cycle
575 V KVA
29 23 13
*0.66 *0.66
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
A/V
duty1 4/95 / 225 765-A
OM-225 757 Page 11
KW
11.2
*0.26