Section 4 − Installation; Specifications; Duty Cycle And Overheating - Miller Deltaweld 652 Owner's Manual

4-1. Specifications

Rated Voltage
Welding Welding Range Range
Output DC
Model
300 A @ 32
300 (29) Volts
10 − 32
Amp DC, 100%
Duty Cycle
450 A @ 38
450
(36.5) Volts
10 − 38
Amp DC, 100%
Duty Cycle
650 A @ 44
650 Volts DC,
10 − 44
Amp
100% Duty
Cycle
*While idling
( ) Indicates specification differences for CE models

4-2. Duty Cycle And Overheating

Overheating
SECTION 4 − INSTALLATION
Amperes Input at Rated Load Output, 50 or 60 Hz,
Max Max IP IP
OCV DC Rating 200 V
48
42 21M
3.7*
72
48 21M
3.2*
54 21M --
100% Duty Cycle
Continuous Welding
0
15
Minutes
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Three-Phase
230 V 380 V 400 V 440 V
42 27 25 23
3.2* 1.8* 1.7* 1.6*
63 39 37 33
2.7* 2.6* 2.2* 2.1*
96 58 54 50
3.2* 3.3* 3.0* 2.8*
V
OR
Reduce Duty Cycle
460 V 575 V KVA KW
21 17 16.9 12.9
1.6* 1.3* 1.26* 0.21*
32 25 25.1 21.1
1.4* 1.1* 1.09* 0.26*
48 38 38.2 34.2
1.6* 1.3* 1.26* 0.35*
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.
duty1 4/95 / SA-168 918
OM-223 Page 13