Filter
Top Products
Cable Installation
15
6.7 Input and Output Wiring
To connect the input wiring:
1. Locate the input wiring access (see
illustration at right).
2. Remove the knockout and pull the three/four
input wires through it, allowing some slack
for installation.
3. Secure the conduit to the rear panel of the
Maintenance Bypass Cabinet.
4. Input power cables connect to hex terminals
on the input terminal block.
5. Insert the ground (earth) wire through the
earth lug and tighten it to the proper torque
value (120 in-lb). Then connect the wires to
the block connections as shown at right. Using
a torque wrench, turn the screws clockwise
until tightened to the proper torque value
(50 in-lb).
NOTE
Input wiring must be installed using conduit.
208 input voltage jumper—if only the connections for 208VAC are made between the UPS and
theNfinity Maintenance Bypass, the 208 input voltage jumper must be installed for proper
operation. To install this jumper, place the jumper wire provided in the accessory kit between
Pin 1 and Pin 2 on TB4.
NOTE
The Nfinity UPS and Maintenance
Bypass with transformer contain an
isolation transformer that generates a
neutral conductor for the connected
equipment. The UPS and Maintenance
Bypass with transformer are a separately
derived source and contain a
neutral-to-ground bonding jumper. A
grounding electrode conductor (GEC)
must be installed in accordance with
national and local wiring codes and
regulations.
Input
Conduit
RIGHT HAND OPTION
( LOOKING FROM FRONT OF UNIT )
REAR VIEW
LEFT HAND OPTION
( LOOKING FROM FRONT OF UNIT )
REAR VIEW