Connecting Esp-50 For 200(208)Vac Input - ESAB ESP-50 Instruction Manual

SECTIoN 3
WarNING
ElECTrIC SHoCK CaN KIll! Pre-
cautionary measures should be
taken to provide maximum pro-
tection against electrical shock.
Be sure that all power is off by
opening the line (wall) discon-
nect switch and by unplugging
the power cord to the unit when
primary electrical connections
are made to the power supply.
figure 3.4.a
208 230
VAC VAC
TB5
BLK
BLK
GRY
3.7 CoNNECTING ESP-50 for 200(208) VaC INPuT
The ESP-50 power source with 200/230 vac, single-phase input capability is factory
set for 230 vac input. If using 200(208) vac input, the ESP-50 must be reconnected
as follows before connecting to your input power:
1. Remove the cover from the ESP-50 power source.
2. Locate the Input Bridge (IBR) and TB5 terminal block (see Figure 3.4.A) on the
left side towards the rear panel. Disconnect the gray lead from TB5-2 and then
connect it to TB5-1.
3. Locate the output bridge (D1) on left side towards the front panel (see Figure
3.4.B). Disconnect and swap leads X2 and X3 from the main transformer. For
200(208) vac input, X2 is connected to TB3 and X3 is connected to terminal 3
of D1. Make sure the connections are firmly tightened.
4. Leave all other wires the same.
5. Reinstall the cover and connect the ESP-50 to 208 vac input power.
Note: factory set for 230 VaC input.
for 208VaC move GrY wire from TB5-2 to TB5-1, move T1-x2 to TB3 and T1-x3 to D1-3
GRY
(IBR)
INPUT
BRIDGE
R2
R
S G
+
T
figure 3-4. original factory Setup for 230 Vac Input on
Power Source with 200/230 Vac Input Power Capability
figure 3.4.B
~
1
+
~
2
OUTPUT BRIDGE
~
3
(D1)
89
INSTallaTIoN
FROM MAIN TRANS-
FORMER
X1
T1-X3
TB3
T1-X2