Miller Electric SHOPMATE 300, Руководство пользователя

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OM-225 757 Page 9
SECTION 3 − INSTALLATION
3-1. Specifications
A. 300 Models
Rated Welding
Output
Amperage/Voltage
Range
Max
OCV − DC
Amperes Input at Rated Load Output 60 Hz,
Single-Phase
Output Range OCV − DC
200 V 230 V 460 V 575 V KVA KW
275 A @ 31 Volts
10 − 35V 85 VDC
66 57 29 23 13 11.2
275 A @ 31 Volts
DC, 50% Duty Cycle
10 − 35V 85 VDC
*1.66 *1.66 *0.83 *0.66 *0.66 *0.26
*While idling
B. 300 DX Models
Rated Welding
Output
Amperage/Voltage
Range
Max OCV − DC
Amperes Input at Rated Load Output 60 Hz,
Single-Phase
Output Range
Max OCV − DC
200 V 230 V 460 V 575 V KVA KW
275 A @ 31 Volts
DC 50% Duty
5 − 400A In CC
Mode
85 VDC In
CC Mode
66 57 29 23 13 11.2
DC, 50% Duty
Cycle
10 − 35V In CV
Mode
85 VDC In
CV Mode
*1.66 *1.66 *0.83 *0.66 *0.66 *0.26
*While idling
3-2. Duty Cycle And Overheating
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.
Y Exceeding duty cycle can
damage unit and void
warranty.
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 / 225 765-A
5 Minutes Welding 5 Minutes Resting
50%dutycycle