The following important highlighted information appears
throughout this document to warn of potential hazards or
to call attention to information that clarifies a procedure.
Carefully read all instructions and become familiar with
the devices before trying to install, operate, service or
maintain this equipment.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Failure to comply with these instructions may result in
product damage.
NOTICE
Indicates important information that must be
remembered and aids in job performance
TRADEMARKS
EntelliGuard™ E
EntelliGuard Messenger™
EntelliGuard™ TU
Entellisys™
WARRANTY
This document is based on information available at the
time of its publication. While efforts have been made to
ensure accuracy, the information contained herein does
not cover all details or variations in hardware and
software, nor does it provide for every possible
contingency in connection with installation, operation,
and maintenance. Features may be described herein that
are not present in all hardware and software systems. GE
Industrial Solutions assumes no obligation of notice to
holders of this document with respect to changes
subsequently made. GE Industrial Solutions makes no
representation or warranty, expressed, implied, or
statutory, with respect to, and assumes no responsibility
for the accuracy, completeness, sufficiency, or usefulness
of the information contained herein. No warrantees of
merchantability or fitness for purpose shall apply.
Contact your local sales office if further information is
required concerning any aspect of EntelliGuard E circuit
breaker operation or maintenance.
SECTION 1 – GENERAL INFORMATION ......................................................................................................................................................................................6
Product Serial Number ..........................................................................................................................................................................................................6
Measurement Units .................................................................................................................................................................................................................6
HAND TOOLS NEEDED FOR INSTALLATION .......................................................................................................................................................................6
Table 1.1. Required Hand Tools .........................................................................................................................................................................................6
Figure 1.1. EntelliGuard E Power Circuit Breaker Features and Characteristics .............................................................................................7
Figure 1.2. EntelliGuard E Power Circuit Breaker Label ...............................................................................................................................................7
Table 2.2. EntelliGuard E Short Circuit and Interrupting Ratings: ANSI/UL1066 ..............................................................................................8
BASIC CIRCUIT BREAKER CONSTRUCTION .........................................................................................................................................................................9
Circuit Breaker Removal from the Cassette ............................................................................................................................................................. 11
TRIP UNIT ........................................................................................................................................................................................................................................ 12
General Information ............................................................................................................................................................................................................ 12
Trip Unit Installation ............................................................................................................................................................................................................. 12
STORED ENERGY MECHANISM KEY FEATURES .............................................................................................................................................................. 16
Two Step Mechanism Design .......................................................................................................................................................................................... 16
Table 4.1. Stored Energy Mechanism Sequences of Operation ...................................................................................................................... 16
CLOSING SPRING DISCHARGE PROCEDURE ................................................................................................................................................................... 16
SECTION 5 – LOCKS AND INTERLOCKS .................................................................................................................................................................................. 18
GENERAL INFORMATION ......................................................................................................................................................................................................... 18
CIRCUIT BREAKER FRONT PANEL LOCKING .................................................................................................................................................................... 18
Padlock or Scissor Lock for Breaker Trip Free Condition .................................................................................................................................... 18
DRAWOUT CASSETTE FRONT PANEL LOCKING ............................................................................................................................................................. 18
GENERAL INFORMATION ......................................................................................................................................................................................................... 20
Motorized Spring Charging Unit ..................................................................................................................................................................................... 20
Carriage Position Switch (TOC) ........................................................................................................................................................................................ 21
Bell Alarm with Lockout ..................................................................................................................................................................................................... 21
Charging Spring Status Indicator .................................................................................................................................................................................. 21
Position Indicators ................................................................................................................................................................................................................ 22
CIRCUIT BREAKER FRONT COVER REMOVAL .................................................................................................................................................................. 23
MOTOR OPERATOR - SPRING CHARGING UNIT INSTALLATION ............................................................................................................................. 23
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)
Screwdriver (8 mm)
Allen wrench (5 mm)
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
Pozidrive screwdriver (#1 and #3)
Full Set of Metric Hex Allen Wrenches and
Socket Set
To remove primary disconnect finger clusters for inspection and maintenance.
To operate racking drive shutter.
To remove arc chutes for inspection and maintenance.
To remove or adjust fixed and moving arcing contacts.
To remove mechanism.
To remove mechanical and electronic component mounting screws.
To connect wiring to secondary disconnect terminals.
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.
To remove PMU base, auxiliary switch assembly, etc.
Ensure only qualified personnel install, operate, service and maintain all electrical equipment.
Failure to comply with these instructions could result in death or serious injury.
TABLE 2.1. ENVIRONMENTAL CONDITIONS
Characteristic Parameter
Temperature:
Ambient for Normal Operation
Ambient at 10% of listed endurance operations inside panel
Storage
Humidity 20% RH to 95% RH
Salt fog per ASTM-B117
Vibration (random and sinusoidal) 1 G max., 50 Hz to 500 Hz in X, Y, Z directions
Fungus resistance per ASTM G21
Voltage and current de-rating at altitude above sea level per ANSI C37.20.1, Tables 2 and 3
Noise level <30 dB
Endurance:
closing coil, Shunt trip
motor operator
-5 ºC to 70 ºC, 40 ºC max without derating
-20 ºC to -5 ºC
-40 ºC to 70 ºC
20,000 operations
12,500 operations
TABLE 2.2. ENTELLIGUARD E SHORT CIRCUIT AND INTERRUPTING RATINGS: ANSI/UL1066
S 65,000 65,000 50,000 50,000 X
N 65,000 65,000 65,000 65,000 X X
H 85,000 85,000 65,000 85,000 X
P 100,000 100,000 65,000 65,000 X
E 85,000 85,000 85,000 85,000 X
M 100,000 100,000 85,000 85,000 X
Envelope 1
400,
800,
1200
400, 800,
1600,
2000
Envelope 2
3200
400-3200
TABLE 2.3. AGENCY CERTIFICATION
(All industry standards referenced in this table are the latest version at the time the product is sold.)
Standard Number Title
ANSI C37.13,16,17, 20, 50 Low-voltage AC Power Circuit Breakers
UL 1066 Low voltage AC and DC Power Circuit Breakers Used in Enclosures
CSA 22.2, No 5.1 Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures
TABLE 2.4. PRODUCT DIMENSIONS AND WEIGHTS
Type
Envelope 1 13.07 332 16.34 415 17.24 438 149.9 68
Envelope 2, Up to 2000A 17.01 432 16.34 415 17.24 438 176.4 80
Envelope 2, Up to 3200A 17.01 432 16.34 415 17.24 438 209.4 95
Ensure only qualified personnel install, operate, service
and maintain all electrical equipment.
Failure to comply with these instructions could
result in death or serious injury.
WARNING
FALLING OBJECT
Ensure lifting equipment has capability for device
being lifted.
Wear hard hat, gloves and safety shoes.
Failure to comply with these instructions could
result in death or serious injury.
CAUTION
PRODUCT DAMAGE
Ensure circuit breaker and its accessories are
always used within their designated ratings.
Do not allow the circuit breaker to hit a hard
surface while handling.
Do not drag or slide the circuit breaker across a
hard or rough surface.
Failure to comply with these instructions may result
in product damage.
NOTICE
A factory-installed rejection feature prevents
mismatching circuit breakers and
cassettes/substructures, preventing the insertion of a
circuit breaker with a lower rating into a higher rated
cassette/substructure, or the insertion of a higher
rated circuit breaker into a lower rated
cassette/substructure.
CIRCUIT BREAKER UNPACKING (FIG. 3.1)
1. Inspect the shipping container for obvious signs of
rough handling and/or external damage incurred during
transportation.
2. Record any observed damage for reporting to the
carrier. Ensure all recorded reports and claims include
the order number and nameplate information.
3. Remove the banding straps and lift off the top cover.
4. Remove all packaging material.
5. Remove all product documentation and store properly.
6. Unscrew the mounting screws that fasten the circuit
breaker to the bottom of the shipping pallet and remove
the circuit breaker.
Figure 3.1. Unpacking the Circuit Breaker
BASIC CIRCUIT BREAKER CONSTRUCTION
Figure 3.2. Circuit Breaker Construction
EntelliGuard E circuit breakers consist of rigid front and rear
housings made of thermoset composite resins which
provide high structural strength and excellent dielectric
properties. These housings enclose a contact system
consisting of a moving portion and a fixed portion:
Moving portion: comprised of multiple finger assemblies
connected to a conductor through flexible copper
connections. The number of finger assemblies depends
on the circuit breaker’s continuous and short circuit
ratings. Each finger assembly has an arcing contact and
a main contact.
Fixed portion: consists of a main fixed contact which is
brazed to a conductive pad, and arc runner which is
fastened to the conductive pad which guides the arc to
the arc chamber.
Each pole has an arc chamber comprised of arc chamber
molds which houses the de-ion plates and filtering system.
The pole configuration depends upon the breaker frame
size.
The operating mechanism is mounted on the front housing.
The energy stored in the mechanism is used to close the
contact system. The mechanism is coupled to each pole by
a common layshaft/drive shaft.