ESAB POWERCUT-1250, Instruction Manual

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16
SECTION 2 INSTALLATION
2.5.1 INPUT VOLTAGE CHANGEOVER
200 - 230 or 460 Mode
To simplify the use of the ESAB Powercut-1250 / 1500 with different input
voltages, it has been equipped with a convenient 230/460 selector switch
located on the back panel of the unit. The Powercut is also equipped with
protective fuse that will prevent damage to the power source in the event
that the input voltage switch is not set correctly and the unit is powered on.
A line (wall) disconnect switch with fuses or circuit breakers should be
provided at the main power panel (see Fig. 2-1 and Table 2-1 / 2-2 for fuse
sizes). The input power cable of the console may be connected directly to
the disconnect switch or you may purchase a proper plug and receptacle
from a local electrical supplier. If using plug/receptacle combination, see
Table 2-1 / 2-2 for recommended input conductors for connecting recep-
tacle to line disconnect switch.
Before making any connections to the
power source output terminals, make
sure that all primary input power to the
power source is deenergized (off) at
the main disconnect switch and that
the input power cable is unplugged.
Input Voltage
Selector Switch
Fuse*
ELECTRIC SHOCK CAN KILL! Before
making electrical input connections to
the power source, "Machinery Lockout
Procedures" should be employed. If
the connections are to be made from a
line disconnect switch, place the switch
in the off position and padlock it to
prevent inadvertent tripping . If the
connection is made from a fusebox,
remove the corresponding fuses and
padlock the box cover. If it is not pos-
sible to use padlocks, attach a red tag
to the line disconnect switch (or fuse
box) warning others that the circuit is
being worked on.
The chassis must be connected to an
approved electrical ground. Failure to
do so may result in electrical shock,
severe burns or death.
Before connecting to input power, make sure there is a line (wall) disconnect
switch with fuses or circuit breakers at the main power panel. You may either
use the factory-installed input power cable (No. 6 AWG, 4/c, type SO (90 °C),
10 ft (3.1 m) length) or provide your own input power leads. If you choose to
provide your own, make sure they are insulated copper conductors. You must
have two (single-phase) or three (three-phase) power leads and one ground
wire. The wires may be heavy rubber covered cable or may be run in a solid
or flexible conduit. Refer to Table 2-1 and 2-2 for recommended input
conductors and line fuse sizes.
INPUT VOLTAGE SELECTOR
NOT POWER
ON - OFF SWITCH
USE POWER SWITCH ON FRONT
PANEL TO TURN
ON AND OFF
Table 2-1. (PC-1250) Recommended Sizes For
Input Conductors and Line Fuses
Input Requirements Input & Gnd Fuse
Volts Phase Amps Conductor Size
CU/AWG Amps
208 1 67A 6 100
208 3 33A/Ph. 6 50
230 1 61A 6 100
230 3 29A/Ph. 6 50
460 3 20 6 50
575 3 15 10 25
Table 2-2. (PC-1500) Recommended Sizes For
Input Conductors and Line Fuses
I
nput Requirements Input & Gnd Fuse
Volts Phase Amps Conductor Size
CU/AWG Amps
208 1 82A 6 100
208 3 44A/Ph. 6 80
230 1 74A 6 100
230 3 40A/Ph. 6 80
460 3 27 6 50
575 3 18 10 50