GE EntelliGuard TU User Manual

EntelliGuard®TU Trip Unit
09/25/08 Section 4 – Battery
© 2008 General Electric All Rights Reserved 23
SECTION 4 – BATTERY
GENERAL BATTERY INFORMATION
The trip unit has a front pane-mounted battery. When the
battery is present, the user scan view data on the LCD
and read or program the trip unit via the keypads. The
battery allows the user to display data, change set points
and provide thermal memory.
The battery does not allow normal trip unit operation; i.e.
over current protection, alarms, relays, etc., are not
functional when the trip unit is powered from the battery.
The trip unit will automatically shut off after 20 sec when
battery powered to maximize battery life.
BATTERY FUNCTION
Pressing any key on the face of the trip unit powers the
unit from its internal battery. Battery power is maintained
for 20 sec after the last key is pressed.
This self-powered mode allows setting up the trip unit or
viewing trip targets when the breaker is de-energized and
external control power is unavailable.
All normal setup, meter, and status functions can be
performed with battery power.
NOTICE
For temperatures above 40° C, any key may have to
be held down for up to 5 sec for the trip unit to be
powered.
BATTERY REPLACEMENT
WARNING
IMPROPER REPLACEMENT
• Replace the battery with 3.6 V ½ AA lithium battery
only.
•
Wear hard hat, gloves and safety shoes when
replacing the battery.
Failure to comply with these instructions could
result in death or serious injury.
WARNING
IMPROPER DISPOSAL
• Ensure battery is properly disposed of according to
all applicable regulations.
Failure to comply with these instructions could
result in death or serious injury.
Replace the battery if it does not power up the trip unit
when any key is pressed.
Lift the battery cover on the front of the trip unit to
expose the 3.6 V ½ AA lithium cell. A suitable replacement
is TADIRAN part number TLL-5902/S or SANYO part
number CR14250SEwhich are commonly available from
most electrical stores or industrial distributors.

GE EntelliGuard TU Specifications

General

Brand	GE
Model	EntelliGuard TU
Category	Control Unit
Language	English