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FUSE AND WIRE SIZES
Protect the input circuit with the super lag fuses or
delay type circuit breakers listed on the
Specifications page of this manual for the
machine being used. The tripping action of delay
type circuit breakers decreases as the magnitude
of the current increases. They are also called
inverse time or thermal/magnetic circuit breakers.
DO NOT use fuses or circuit breakers with a lower
amp rating than recommended. This can result in
"nuisance" tripping caused by inrush current even
when machine is not being used for cutting or
gouging at high output currents.
Use input and grounding wire sizes that meet
local electrical codes or see the Specifications
page in this manual.
GROUND CONNECTION
Ground the frame of the machine. A ground ter-
minal marked with the symbol ( ) is located at the
left side of the Input Box Assembly. Access to the
Input Box Assembly is at the top-rear of the
machine. See your local and national electrical
codes for proper grounding methods.
INPUT POWER SUPPLY CONNECTIONS
A qualified electrician should connect the input
power supply leads to the L1 and L2 terminals on
the Input Box Assembly Terminal Block.
1. Follow all national and local electrical codes.
2. Follow Input Supply Connection Diagram
located on the inside of the access door.
3. Use a single-phase line or one phase of a
three-phase line.
4. Connect leads to machine's terminal block.
See Figure A.2.
a. For #8 AWG wire (8.4mm), connect leads
directly to machine's terminal block.
b. For #10 AWG wire (5.3mm), connect leads
to terminal block using the ferrules
(S19117-1)provided.
(1) Strip 1/2" (12.7mm) of insulation from
wire.
(2) Place ferrule over wire.
(3) Connect to machine terminal block.
c. Tighten screws to 16 in/lbs (1.8 N.M.)
FIGURE A.2 - Input Power Supply
Connections.
INSTALLATION
PRO-CUT 60
A-4
L1
GND.
TERMINAL
BLOCK
RECONNECT
PANEL ASSEMBLY
L2
Place Ferrule (S19117-1) Over Wire as Shown
Before Insertion into Machine Terminal Block.
For #10 (5.3mm
2
)
AWG Wire Only
.50"
(12.7 mm)
Strip #10 (5.3mm
2
) Wire