Placement; Input Power Connection; Primary Power - ESAB EPP-360 Instruction Manual

7.3

Placement

A minimum of 1 meter (3 ft.) clearance on front and back for cooling air flow.
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Plan for top panel and side panels having to be removed for maintenance,
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cleaning and inspection.
Locate the EPP-360 relatively close to a properly fused electrical power supply.
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Keep area beneath power source clear for cooling air flow.
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Environment should be relatively free of dust, fumes and excessive heat. These
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factors will affect cooling efficiency.
7.4

Input power connection

7.4.1

Primary power

EPP-360 is a 3-phase unit. Input power must be provided from a line (wall)
disconnect switch that contains fuses or circuit breakers in accordance to local or
state regulations.
Recommended fuse sizes and minimum cable area
Input at rated load
Volts
460
575
Rated load is output of 360A at 200V
* Sizes per National Electrical Code for a 90° C (194˚ F) rated copper conductors @ 40° C (104˚ F)
ambient. Not more than three conductors in raceway or cable. Local codes should be followed if they
specify sizes other than those listed above.
To estimate the input current for a wide range of output conditions, use the formula below.
Input current=
bp12a1
Conductive dust and dirt inside power source may cause arc
flashover. Equipment damage may occur. Electrical shorting
may occur if dust is allowed to build-up inside power source.
See maintenance section.
ELECTRIC SHOCK CAN KILL!
PROVIDE MAXIMUM PROTECTION AGAINST ELECTRICAL
SHOCK. BEFORE ANY CONNECTIONS ARE MADE IN SIDE THE
MACHINE, OPEN THE LINE WALL DISCONNECT SWITCH TO
TURN POWER OFF.
Amps
115
92
(V arc) x (l arc) x 0.73
(V line)
Input & ground
conductor* CU / mm
(AWG)
35 (2)*
35(2)*
- 18 -
Time delay
2
Fuse size Amps
150
125
© ESAB AB 2010