Effective 10/2004
Page 37
I.L. 70C1036H05
6.2 Battery Test
The battery is a long-life, lithium, camera-type unit. Check
the status of the battery at any time by pressing the
Battery Test pushbutton and observing the green LED. If
the Battery Test LED does not light green, replace the
battery. The condition of the battery has no effect on the
protection function of the trip unit. Even with the battery
removed, the unit will still trip the circuit breaker in accor-
dance with its settings. However, without the battery, the
Cause of Trip LED will not be lighted red if auxiliary power
is lost to the Digitrip. If the battery is replaced, one or more
of the Cause of Trip LEDs may be illuminated. Push the
red Reset/Battery Test button to turn off the indicators; the
trip unit will be ready to indicate the next cause of trip.
6.3 Battery Installation and Removal
The 3-volt lithium cell battery
(See Figure 6.1)
is easily
removed and replaced. The battery is located in the cavity
adjacent to the rating plug mounting screw, but is not part
of the rating plug. Insert a small screwdriver at the left side
of the rating plug, and to the left of the word OPEN, to
open the rating plug door. Remove the old battery by
pulling up on the removal tab that wraps under the battery
cell. When inserting the new cell, pay special attention to
ensure that the proper polarity is observed. The main body
of the battery is the positive (+) side.
Figure 6.1 Digitrip Battery
NOTE:
The battery can be replaced at any time, even
while the circuit breaker is in-service, without affecting the
operation of the circuit breaker or its protection functions.
CAUTION
EXERCISE CARE WHEN REPLACING THE BATTERY TO
ENSURE THAT THE CORRECT POLARITIES ARE
OBSERVED. POLARITY MARKINGS ARE SHOWN ON
THE RATING PLUG WHEN THE HINGED COVER IS
6.0 BATTERY
6.1 General
The battery plays no part in the protection function of the
trip unit.
As indicated in Figure 3.1, the battery is provided to flash
and power the red LED indication on the mimic curve. The
battery is located under the rating plug door. A battery test
pushbutton and a green Battery Test LED are also pro-
vided.
A second function of the battery is to provide backup power
for the clock chip in the unit. The clock is used to
timestamp trip and alarm events.
On initial installation of the circuit breaker, pull out the
insulating tab with a quick pull
(See Figure 6.1).
This will
activate the battery. Check the battery status using the
Battery Test pushbutton.
Figure 5.4 Alternate Connection Details using three poles
to develop a Ground Fault Condition
CAUTION
RESTORE ALL TEMPORARY CONNECTIONS MADE
FOR THE PURPOSE OF CONDUCTING TESTS TO
PROPER OPERATING CONDITIONS BEFORE RETURN-
ING THE CIRCUIT BREAKER TO SERVICE.
Record the test results on the test form provided with the
equipment
(See Figure 8.3).
USE TYPE
1/3 N LITHIUM
BATTERY ONLY
Pull to Remove Battery
Insulating Tab
Rating Plug door flipped open
Suitable
Conductors
Low-Voltage
AC Current
Source
Primary
Disconnect
Stabs - When
Drawout
A
B
C
Polarity &
Identification
