DCM00044 REV. 14 41
4.4.3 Electrical Input Power Ratings
Plug the Power Supply into a single-phase, grounded, 3-wire, 50 or 60 Hz power source.
Table 4.4
lists the current and fuse ratings for the various models.
4.4.4 Air Cylinder Consumption
The Ultraweld L20 air consumption rate can be estimated using the table below:
Add 0.034 cubic foot per minute (CFM) for each second of actual weld time to account for
converter cooling air per weld cycle.
Example:
The Ultraweld L20 Actuator (100mm Bore) running at full pressure (80PSI) and full stroke
length (48mm=1.9”) at a cycle of 20 parts per minute. The air consumption (in CFM) will
be:
Consumption per stroke = 0.0454 CFM per inch of stroke x 3.8” (total stroke) = 0.1771 CFM per
stroke.
If the weld time is 1 second, we add 0.034 CFM of actual weld time to account for converter
cooling air per weld cycle.
Consumption per cycle = 0.1771 + 0.034 = 0.2111 CFM per cycle.
Consumption = 0.2111 CFM per cycle x 20 cycles per minute = 4.222CFM.
The example above is to be considered a worse case condition for an Ultraweld L20
Actuator to run at.
Table 4.4 Input Power requirements
Model Power Current Rating
NEMA
Connector
20 kHz
models
2200 W 200V - 230V 14 Amp Max. @ 200V / 20 Amp fuse
NEMA L6-
20P Plug
3300 W 200V - 230V 21 Amp Max. @ 200V / 20 Amp fuse
NEMA L6-
20P Plug
4000 W 200V - 230V 25 Amp Max. @ 200V / 25 Amp fuse
NEMA L6-
30P Plug
5500 W 3 phase 480V
Table 4.5 Cubic Feet of air per minute per inch of stroke length (each direction)
Air
Pressure
(PSI)
10 20 30 40 50 60 70 80
100mm Bore
0.0118 0.0166 0.0214 0.0262 0.0310 0.0358 0.0406 0.0454
63mm Bore
0.0047 0.0066 0.0085 0.0104 0.0123 0.0142 0.0161 0.0180
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