Instructions for use of
etc-12/etd
G Series Direct Replacement Trip Unit
page
6 of 13
revision B,
8/20/10
4.6.
Inspect existing wiring harness. The
etc-12
only requires wires connected to 10
locations on the harness connector. There
may be additional wires routed to this
connector. These additional wires should be
removed before installing the new trip unit.
Figure 2 indicates which positions in the
existing harness should be populated.
4.7.
To remove a contact from the
connector, place the extraction tool into the
cavity from the front of the connector as
shown in figure 3. Press extraction tool
firmly into the connecter then depress the
plunger. Note that if the tool is not pressed
firmly into the connector before the plunger is
depressed, the contacts being extracted will
be damaged.
4.8.
The jumper required for breaker
frames above but not including 2000A is
inserted in locations 35 and 36 of the
harness connector. These locations are
indicated in blue in figure 2. Location
numbers of each cavity are molded into the
rear of the connector but it is often possible
to install this jumper without removing the
programmer mount.
IMPORTANT!!
IF THE BREAKER FRAME SIZE IS
ABOVE (BUT NOT INCLUDING)
2000A, AN ADDITIONAL WIRING
JUMPER MUST BE ADDED AS
DETAILED IN STEPS 4.8 AND 4.9.
FAILURE TO INSTALL THIS JUMPER
CAN RESULT IN NUISANCE
TRIPPING
FIGURE 2,
PIN CONNECTIONS ON EXISTING HARNESS
LOCATIONS INDICATED YELLOW ARE
NECESSARY FOR PROPER OPERATION
LOCATIONS INDICATED IN GREEN ARE
REQUIRED ONLY IF A NEUTRAL CT IS UTILIZED
A JUMPER MUST BE PLACED IN THIS
LOCATION IF THE BREAKER IS LARGER THAN
2000A FRAME.
FIGURE 3, REMOVING UNNEEDED WIRES
FROM CONNECTOR
Summary of Contents for etc-12 G series
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