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DYNA MMA 500S
、
500GTS
、
500(H)S
、
500(H)GTS
、
630S
、
630GTS Operating Manual
2.02 Specifications
Model
MMA 500S
MMA 500GTS
MMA 500(H)S
MMA
500(H)GTS
MMA 630S
MMA 630GTS
Input voltage and
frequency
380/415V
50/60Hz
380/415V
50/60Hz
380/415V
50/60Hz
380/415V
50/60Hz
380/415V
50/60Hz
380/415V
50/60Hz
KVA @ max
output
27KVA 27KVA 27KVA 27KVA 35.5KVA
35.5KVA
Max current
500A 500A 500A 500A 630A 630A
Output current
10~500A 10~500A 10~500A 10~500A 10~630A 10~630A
Open circuit
voltage
78/85V 78/85V 78/85V 78/85V 78/85V 78/85V
Down slope time
0~5s 0~5s 0~5s
Gas post-flow
time
0~5s 0~5s 0~5s
Duty cycle at
40
℃
60% 60% 100% 100% 60% 60%
Weight
65
kg
67
kg
70
kg
72
kg
80
kg
82
kg
Dimensions
560
×
365
×
640 560
×
365
×
640 560
×
365
×
640 560
×
365
×
640 560
×
365
×
640 560
×
365
×
640
Table 3
2.03 Duty cycle
The duty cycle of a welding power source is the percentage of a ten (10) minute period that it can be
operated at a given output without causing overheating and damage to the unit. If the welding amperes
decrease, the duty cycle increases. If the welding amperes are increased beyond the rated output, the duty
cycle will decrease.
WARNING
: Exceeding the duty cycle ratings will cause the thermal overload
protection circuit to become energized and shut down the output until has cooled
to normal operating temperature
Continually exceeding the duty cycle ratings
can cause damage to the welding power source.
NOTICE
：
Due to variations that can occur in manufacture products, claimed performance, voltages, ratings, all
capacities, measurements, dimensions and weights quoted are approximate only. Achievable capacities and
ratings in use and operation will depend upon correct installation, use, applications, maintenance and service.
