ESAB ESP-101 Manuel D'instruction page 19

SECTIoN 3
CauTIoN
The TUA2 Auto-Transformer is not equipped with an input power cable. A 4/c, type SO (90 °C) cable or equivalent is recom-
mended. Ensure they are insulated copper conductors. You must have three (3 phase) power leads and one ground wire.
Select an input power cable size corresponding to the input supply voltage listed in Table 3.1.
Primary Power Cable from fused line Disconnect Switch
Step 1: Begin by preparing the power cable, then positioning in the TUA2 as shown:
Lower Strain Relief
figure 3-3a. Primary Power Cable from fused line Disconnect Switch
Step 2: Route the power cable through the lower strain relief of the TUA2 Auto-Transformer as shown below. Connect L1,
L2, L3 leads to the voltage terminals that match your input power supply voltage. Connect the ground lead to the
rear ground stud. Ensure all connections are secure. Do not overtighten the strain relief.
To ESP-101 460 V
console
To Fused Line
Disconnect Switch
Ground Connection
figure 3-3b. Primary Power Cable from fused line Disconnect Switch
Ensure three input power jumper cables are connected properly to the
auto-Transformer for your input power.
to Tua2 auto-Transformer
10"
(254 mm)
to Tua2 auto-Transformer
to Tua2 auto-Transformer appropriate supply voltage terminals
10 1/2"
(266.7 mm)
8"
(203.2 mm)
L1
L2
18"
(457.2 mm)
(575 V pictured)
19
INSTallaTIoN
Note:
L1, L2 & L3 strip wires 3/8" (9.5 mm) .
GND wire strip 1" (25.4 mm) or
5/16" ring terminal.
L3
GND
Appropriate supply
voltage terminals