GE Industrial Solutions EntelliGuard TU Trip Units - Manual (Page 11)

DEH-4567B EntelliGuard TU Trip Units: UL/ANSI Models
General Information
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SECTION 1. GENERAL INFORMATION
The EntelliGuard TU Trip Unit is an electronic device that
interfaces with a circuit breaker. It monitors current and/or
voltage and trips the breaker in the event of an over-
current or voltage related condition. It also provides
protective relay functions, advanced metering, diagnostic
features, and communications. The Trip Unit can be
removed or replaced in the field by de-energizing and
removing the cover of the circuit breaker.
The Trip Unit drives the circuit breaker flux shifter to
provide the electromechanical tripping function. A user
interface is provided on the front panel to allow adjustment
of the Trip Unit’s parameters.
EntelliGuard TU Trip Unit has been designed to be plug and
play compatible with previous generation trip units,
MicroVersa Trip, MVT RMS-9, EPIC, MVT Plus, MVT PM,
Power+, and ProTrip. In addition to trip unit upgrades,
conversion kits are offered to upgrade ANSI type legacy
breakers.
FRONT PANEL DISPLAY
The Trip Unit includes a graphical Liquid Crystal Display
(LCD). The front panel is similar to those shown in
Figure 1-1 through Figure 1-5.
When the trip unit is energized the LCD normally displays a
menu of navigation options. If the trip unit is powered from
an external DC supply, a backlight is provided and remains
on. If the trip unit is powered from the circuit breaker’s
Current Transformers alone there is no backlight, but the
navigation menu is available as long as current flow is at
least 20% of the breaker’s sensor rating. If the display is
blank, pressing any key will turn on the menu using battery
power.
Figure 1-1: EntelliGuard G Trip Units
WARNING
BOX SIZE AND CONNECTOR CONFIGURATION COMMONALITY DOES NOT SUGGEST INTERCHANGEABILITY BETWEEN
POWERBREAK II AND WAVEPRO OR POWERBREAK 1 AND AKR. THE OPTIONS ON THESE TRIP UNITS ARE DIFFERENT AND
WILL CAUSE THEM TO BEHAVE AND OPERATE
DIFFERENTLY.
Battery, 15 Pin Port
(under the cover)
Bell Alarm with Lockout
(EntelliGuard G only)
Status LED
Rating plug
LCD Screen
Navigation Panel
Catalog Number
40 Pin Connector on top (EntelliGuard G only)
Pin Connector on back of all trip
unit types, see images below for
specifics by breaker.
Date Code