3-2
August 22, 2008
FABRICATOR 251
SERVICE MANUAL
3.04 Mains Supply Voltage Requirements
The Mains supply voltage should be within ± 10% of the
r
ated Mains supply voltage. Too low of a supply voltage may
cause poo
r
welding pe
r
fo
r
mance o
r
wi
r
efeede
r
malfunction. Too high of a supply voltage will cause components to
ove
r
heat and possibly fail.
Install a powe
r
outlet fo
r
each Powe
r
Supply and fit fuses as pe
r
the machine specifications.
!
WARNING
Valley National Gases advises that you
r
Fab
r
icato
r
251 be elect
r
ically connected by a qualified elect
r
ical
t
r
ades-pe
r
son.
The Fab
r
icato
r
251 Powe
r
Supply is facto
r
y connected fo
r
the following input powe
r
supply voltage:
Input Power
Supply Lead Size
Lead Current
Rating
Lead
Length
Machine
Voltage Setting
Duty Cycle
8 AWG
40 Amps
10ft (3m)
230V
250A @ 60%
Table 3-1: Facto
r
y Fitted Input Powe
r
Supply Leads Fitted to the Fab
r
icato
r
251
3.05 Alternative Mains Supply Voltages
!
WARNING
The Fab
r
icato
r
251 input powe
r
supply lead should be
r
eplaced with leads as specified in Table 3-2 when
the Fab
r
icato
r
s input powe
r
supply voltage is changed.
The Powe
r
Supply is suitable fo
r
use on the following input powe
r
supply voltages:
Input Power Supply
Voltage Setting
Mains Supply
Lead Size
Input Power
Outlet Size
Fuse Size
Duty Cycle
208V
8AWG (8.0mm2)
50 Amps 50 Amps 250A @ 60%
230V
8AWG (8.0mm2)
50 Amps 50 Amps 250A @ 60%
Table 3-2: Mains Supply Lead Sizes fo
r
Alte
r
native Mains Supply Voltages
National Elect
r
ical Code Standa
r
ds pe
r
mit the
r
ating of the fuse o
r
the
r
mal ci
r
cuit b
r
eake
r
p
r
otecting the ci
r
cuit conducto
r
s
to be double the standa
r
d
r
ating fo
r
any ci
r
cuit used exclusively fo
r
an elect
r
ic a
r
c welde
r
. Check local
r
equi
r
ements fo
r
you
r
situation in this
r
ega
r
d.
Содержание FABRICATOR 251
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