Duty Cycle; Technical Data - ESAB Origo Arc 256 Manual De Instrucciones

2) DESCRIPTION
Origo™ Arc is a welding rectifier for craftsmen or industry. Permits welding with a large number of different
types of electrode including basic.
Origo™ Arc is a fan cooled three phase rectifier connected to a power socket between three phases.
The welding current is continuously adjustable with a crank at the front panel. A scale on the front panel
shows the set welding current.
The rectifier has a movable leakage core. By varying the magnetic field by means of this leakage core.
The rectifier case is made of galvanized sheet steel and is so designed that the rectifier can be used
outdoors irrespective of the weather whitout extra protection.

3) DUTY CYCLE

Duty cycle is the ratio of the time that a welding machine can provide the maximum welding current (charge
time) to a reference time; in according to international standards, reference time is 10 minutes.
Example:The nominal duty cycle of 60% means that a machine can repeatedly provide its nominal welding
current during periods of 6 minutes (charge), followed by a 4 minute rest (the machine does not provide
welding current) (6+4= 10 min.). This process is repeatedly done so that the temperature of its internal
components does not exceed the limits stated in the project.The same goes for any value of duty cycle.
The duty cycle of 100% means that the machine can provide specified welding current non-stop, in other
words, with no need to rest.
In a welding machine, the allowed duty cycle increases up 100 % as the used welding current decreases;
inversely, the allowed duty cycle decreases as the welding current increases up to its maximum range.

4) TECHNICAL DATA

TABLE 4.1
EQUIPMENT
Current range
Nominal current (A) / Voltage (V)
Duty cicle
Duty cycle %
Current (A)
Voltage (V)
Power Supply (V-Hz)
Rating for 60% duty cicle (KVA)
Thermal Class (°C)
Dimensions (W x D x H- mm )
Weight (kg)
16
Origo™ Arc 256/406/456
Origo™ Arc 256
40A / 21,6V - 250A / 30V
77
20 40
100
250 170 120
27
28 25
220 / 380 / 440 - 60
30 KVA
H (180° C)
600 x 1200 x 730
95
Origo™ Arc 406
60A / 22V - 400A / 36V
83
20
40 100
400 280 180
36 32 27
220 / 380 / 440 - 60
33,5 KVA
H (180° C)
600 x 1200 x 730 600 x 1200 x 730 (with handles)
115
Origo™ Arc 456
70A / 23V - 450A / 37V
87
60 100
35
450 300 230
38 33 30V
220 / 380 / 440 - 60
35 KVA
H (180° C)
650 x 890 x 900 (with trolley)
151