10
Installing the Trip Unit Wiring Harness
CAUTION
: Pins in the connectors may come loose
in shipping. Check all wiring harness connectors to
ensure that the pins are tight. Reseat pins as
necessary.
Use the following procedure to install the trip unit
mounting plate onto the breaker.
1.
The wiring harness includes a 36-pin connector,
shown in Figure 9, that must be assembled and
installed onto the trip unit mounting plate before
the trip unit can be installed.
CAUTION:
The adapter bracket must be installed
onto the trip unit 36-pin connector and trip unit
mounting plate as described below. Failure to do so
will result in harness plug failure and the trip unit
will not provide protection. If the converted breaker
is energized or primary injected with the mounting
plate not installed or installed improperly, damage
will result to the trip unit, wire harness, 36-pin
connector, and current sensors. Failure to adhere to
these instructions will void all warranties.
2.
Slide the adapter bracket onto the 36-pin con-
nector, as shown in Figure 10. Be sure that the
beveled corners of the trip unit connector are
facing toward the right side, the adapter bracket
slides are in place behind the notches on either
side of the connector body, and the connector’s
tabs align with the notches on the bottom of the
adapter bracket.
3.
Hold the adapter bracket tight to the trip unit
connector and bend the two locking tabs on the
adapter bracket over the connector body, as
shown in Figure 11.
Figure 9. 36-pin trip unit connector.
Figure 10 36-pin connector adapter bracket.
Figure 11. Adapter bracket locking tabs.
