Caution – GE Industrial Solutions EntelliGuard E Circuit Breaker User Manual
Page 6
EntelliGuard® E Circuit Breaker
DEH-41526
6
©2012 General Electric All Rights Reserved
SECTION 1 – GENERAL INFORMATION
STORAGE
CAUTION
PRODUCT DAMAGE
Do not store circuit breaker in corrosive
environments above LC1 (sea salt mist) and G1 as
per ANSI/ISA-S71.04-1985.
Ensure circuit breakers are stored in a clean, dry
location in their original packaging.
Failure to comply with these instructions may result
in product damage.
Introduction
Quality Assurance
All EntelliGuard E circuit breakers have been designed
and manufactured to the highest technical standards.
Strict procedures ensure first class product quality.
Product Serial Number
Please have the serial number available when
communicating about the circuit breaker. Each circuit
breaker has a unique serial number located on the
bottom right side (viewed from front) of the front fascia,
see figure 1.2.
Measurement Units
All data in this document is specified in conventional
metric/SI units.
All internal/external accessory and external
cable/bus bar connections are metric.
PRODUCT DESCRIPTION
The EntelliGuard E power circuit breaker is designed to
protect low voltage power circuits when used with
Entellisys™ Low-Voltage Switchgear only. The
EntelliGuard E circuit breaker must be used in concert
with the EntelliGuard Messenger and current
transformers mounted within the switchgear cubicle. All
EntelliGuard E circuit breakers are designed for draw-out
mounting. See Section 2 and the Entellisys Low-Voltage
Switchgear application guide, DET-838 for complete
product specifications.
Figure 1.1 shows a front view of the EntelliGuard E. The
indicated features are referenced in this document.
HAND TOOLS NEEDED FOR INSTALLATION
Table 1.1 provides a list of the hand tools required to
install, operate and maintain the EntelliGuard E Circuit
Breaker.
Table 1.1. Required Hand Tools
Tool Name
Function
Cluster pliers (two pairs, each with a different
gap, are supplied under Cat. No. GUNI)
To remove primary disconnect finger clusters for inspection and maintenance.
Screwdriver (8 mm)
To operate racking drive shutter.
Allen wrench (5 mm)
To remove arc chutes for inspection and maintenance.
To remove or adjust fixed and moving arcing contacts.
To remove mechanism.
Allen wrench key (4 mm)
To remove motor and gearbox mounting screws.
Metric feeler gauges
To check and adjust arcing contact gaps.
Pozidrive terminal screwdriver
To remove mechanical and electronic component mounting screws.
To connect wiring to secondary disconnect terminals.
Pozidrive screwdriver (#1 and #3)
To remove front cover mounting screws.
To remove Rogowski coil and Power current transformer cover plate at the
rear of the circuit breaker moving portion.
Full Set of Metric Hex Allen Wrenches and
Socket Set
To remove PMU base, auxiliary switch assembly, etc.