11
CURRENT TECHNOLOGY
®
PX3
TM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Also refer to Figures
1 through 4 for
a schematic of
connections for different
service configurations.
The following factors should be
addressed during the design of an
installation to ensure that there is a
suitable place for the PX3 reserved
next to its point of connection to
the electrical system . The selected
mounting location should ensure short
conductor runs providing a direct route
with a minimum of bends . If bends
are required they should be sweeping
bends . Do not make sharp 90˚ bends for
aesthetic purposes .
These illustration show suggested
conductor routing for a top-feed
panelboard . Routing in bottom-feed
panelboards is similar but reversed .
Note that conductors from the PX3
always connect within the panelboards
to lugs or breakers closest to the PX3 .
The lugs on the PX3 ISM may be rotated
to facilitate routing .
Conductor Routing
Figure 9
PX3 Direct Bus
Connected With
Disconnect
WIREWAY
ALLOWANCE
A
B
G C
N
5.50”
G
N
ROUTING
FROM BREAKERS
USE BREAKERS,
NEUTRAL &
GROUND
NEAREST PX3
UNIT
A
B
G
C
N
WIREWAY
ALLOWANCE
G
N
5.50”
ROUTING
FROM BREAKERS
USE BREAKERS,
NEUTRAL &
GROUND
NEAREST PX3
UNIT
A
B
G
C
N
WIREWAY
ALLOWANCE
G
N
5.50”
USE NEUTRAL
& GROUND
NEAREST PX3
UNIT
Figure 7
Standard
PX3 Without
Disconnect
Figure 8
PX3 Using
Breakers
Connected With
Disconnect
