CHAPTER 2: GENERAL SETUP
2 KHZ INVERTER WEDLING POWER SUPPLY
2-2
990-057
Power Line Voltage, Current, and Wire Size Requirements
WARNING:
The Power Supply and Transformer are assembled at the factory for operation at a specific
input power line voltage. Serious damage can result if these units are used on different voltage other than
the voltage for which they are wired. The Transformer input voltage must match the Power Supply power
line voltage.
Use the following table to select the correct power line circuit breaker and wire gauge size. To minimize
peak power losses, use single unbroken wire lines. Note: To minimize peak power losses, AMADA
WELD TECH recommends wire gauge sizes that exceed the USA National Electrical Code
recommendations.
3-Phase Service
Voltage (RMS)
3-Phase Service Breaker
Current (RMS)
Copper Wire Gauge Size
(AWG)
208 V to 230 V
50 A
AWG 8 @ 133 strands
380 V to 460 V
30 A
AWG 10 @ 105 strands
Insulation Requirements
Oil-resistant synthetic rubber rated at 90
°
C and 600 V.
Power Line Fuse Requirements
Service Voltage
Fuse Size: F1, F2
AMADA WELD TECH
Part Number
208, 230, 380
3AG, 440 V, 2 A
330-071
460
3AG, 500 V, 2 A
330-100
