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Installation and User Manual
Figure 2-4: Circuit Diagram for 1800VA-7500VA 240/120VAC Input.
X1
X3
X2
X4
G
H1
H3
H2
H4
H1
H3
H2
H4
X1
X3
X2
X4
G
240V
INPUT
120V
INPUT
LINE
NEUTRAL
GROUND
LINE
* NEUTRAL
GROUND
120V
OUTPUT
240V
OUTPUT
LINE
LINE
LINE
T1
FILTER BOARD
IL
IN
L
N
LOAD
SHIELD
OUTPUT
HARDWIRE CONNECTION DIAGRAM
240/120VAC OUTPUT 60Hz
GROUND STUD
(BOTTOM OF ENCLOSURE)
NOTE: UNIT FACTORY WIRED FOR 120VAC INPUT AND OUTPUT
5000VA AND 7500VA UNITS PROVIDED WITH 480/240VAC INPUT
ARE FACTORY WIRED FOR 480VAC INPUT AND 120VAC OUTPUT
15
2
6
3
7
48
CORE
LINE
RATING
120V 240V
1800VA
2500VA
5000VA
7500VA
20
#12 GA.
10
#14 GA.
25
#10 GA.
15
#14 GA.
50
#8 GA.
25
#10 GA.
70
#8 GA.
40
#10 GA.
480V
--
--
15
#14 GA.
20
#12 GA.
MAXIMUM BRANCH CIRCUIT
FUSE OR CIRCUIT BREAKER
RATING & RECOMMENDED
MINIMUM WIRE SIZE
AT VOLTAGE OF
NOTE: IF YOU DESIRE TO HAVE THE OUTPUT NEUTRAL UNGROUNDED, THE BONDING JUMPER CONNECTOR BETWEEN OUPUT TERMINAL
X4 AND GROUND MAY BE REMOVED. NOTE HOWEVER, THAT THIS WILL SIGNIFICANTLY REDUCE THE COMMON-MODE NOISE ATTENUATION
OF THE ULTRA-ISOLATOR. REMOVING THIS BOND WILL ALLOW FOR 240VAC LINE TO LINE APPLICATIONS AND PROVIDE ISOLATION.
H1
H3
H2
H4
H1
H3
H2
H4
480V
INPUT
240V
INPUT
LINE
LINE
LINE
LINE
* NEUTRAL (OR LINE IF X4-G JUMPER IS REMOVED.
SEE NOTE AT BOTTOM OF PAGE.)
GROUND
GROUND
LUG
5000VA - 7500VA 480/240VAC INPUT 1800VA - 7500VA 240/120VAC INPUT