3
SECTION 1. GENERAL
INFORMATION
GE Conversion Kit installation is straightforward, but does
require careful workmanship and attention to these
instructions. Familiarity with the breaker is highly desirable.
The general approach is to first remove the existing trip
devices from the breaker, then install the Entelliguard,
MicroVersaTrip Plus and MicroVersaTrip PM kit components.
Following this procedure, the converted breaker is performance
tested before it is returned to service.
The majority of trip unit kit installations do not require any
customized assembly work. However, some conversions may
involve unusual mounting conditions or accessory
combinations that require minor modifications and/or
relocation of components. In most instances, this
supplementary work can be done on site.
In preparation for the conversion, the installer should verify
that the appropriate current sensors and trip unit have been
furnished. Whenever a ground-fault trip element is installed on
a breaker with a four-wire system, an associated neutral sensor
(CT) is required for separate mounting in the equipment.
Ensure that retrofitted breakers are applied within their short-
circuit ratings. For example, when the trip elements of the
breaker are to be changed from long-time instantaneous to
long-time short-time, the short-time rating will govern the
application.
As a service-related consideration, the installation of a
Entelliguard, MicroVersaTrip Plus and MicroVersaTrip PM kit
provides an excellent opportunity to perform normal
maintenance on the breaker. Such procedures are described in
the installation and maintenance manuals supplied with the
breaker and equipment.
SECTION 2. BEFORE INSTALLATION
Before starting any work, turn off and lock out all power
sources leading to the breaker, both primary and secondary.
Remove the breaker to a clean, well-lighted work area.
WARNING:
Low-voltage power circuit breakers use high-
speed, stored-energy spring operating mechanisms. The
breakers and their enclosures contain interlocks and safety
features intended to provide safe, proper operating sequences.
For maximum personnel protection during installation,
operation, and maintenance of these breakers, the following
procedures must be followed. Failure to follow these
procedures may result in personal injury or property damage.
• Only qualified persons, as defined in the National
Electrical Code, who are familiar with the installation and
maintenance of low-voltage power circuit breakers and
switchgear assemblies, should perform any work on these
breakers.
• Completely read and understand all instructions before
attempting any breaker installation, operation,
maintenance, or modification.
• Turn off and lock out the power source feeding the
breaker before attempting any installation, maintenance,
or modification. Follow all lock-out and tag-out rules of
the National Electrical Code and all other applicable
codes.
• Do not work on a closed breaker or a breaker with the
closing springs charged. Trip the breaker OPEN and be
sure the stored-energy springs are discharged, thus
eliminating the possibility that the breaker may trip open
or the closing springs discharge and cause injury.
• Trip the breaker OPEN, then remove the breaker to a
well-lighted work area before beginning work.
• Do not perform any maintenance that includes breaker
charging, closing, tripping, or any other function that
could cause significant movement of a draw-out breaker
while it is on the draw-out extension rails.
• Do not leave the breaker in an intermediate position in
the switchgear compartment. Always leave it in the
CONNECTED, TEST, or DISCONNECTED position.
Failure to do so could lead to improper positioning of the
breaker and flashback.
• Refer to DEH-4567 for supplementary instructions of
settings of the Entelliguard Electronic Trip Unit.
• Refer to DEH-3456 for supplementary instructions for
wiring the RELT circuit.
• Refer to DEH-6273 for supplementary instructions of
settings of the MicroVersaTrip Plus and MicroVersaTrip
PM.
