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DEH–3456
g
For GE Low Voltage Power Circuit breaker types:
For I-T-E Low Voltage Power Circuit breaker types:
For Allis Chalmers Low Voltage Power Circuit breaker types:
Entelliguard TU Conversion kits
AK, AKT, AKS, AKU, AKJ, AKR, AKRU, AKRT, AKJT, AKW
K, KA, KB, KC, KD, KE
LA Gold, LA Blue
For Westinghouse Low Voltage Power Circuit breaker types:
DB, DS
Supplementary Instructions Only
This publication must be read in conjunction with the installation instructions for
MicroVersaTrip
1
Plus and PM Conversion kits for GE Low Voltage Power Circuit Breaker of
respective type.
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Introduction
GE conversion kits are designed to upgrade existing GE Low Voltage Power Circuit Breakers, rather
then replacing the entire breaker. The conversion kits contain enhanced solid state Entelliguard TU,
representing the latest technological advancements in GE trip systems.
This supplementary publication covers specific instructions for the installation of Entelliguard TU
with advanced optional features like RELT (Reduced energy let through mode), Ground Fault Alarm
etc. in GE Low Voltage Power Circuit Breakers. This supplementary publication does not detail all
aspects of the conversion kit installation process.
The EntelliGuard TU trip unit provides an optional second, user-adjustable, RELT Instantaneous trip.
This trip provides an alternate Instantaneous setting that allows a user to temporarily set a circuit
breaker to a more sensitive pickup to provide better protection, only when better protection is
needed and some selectivity may be sacrificed.
RELT Instantaneous pickup can be enabled via application of 24Vdc or Vac at the RELT input
terminals or serial communications via the Modbus communication port. The RELT input command
may be wired to a manual switch, automatic sensor or, via external logic, to one or more signal
sources. When the EntelliGuard TU trip unit has the RELT Instantaneous pickup enabled, the trip unit
provides a feedback signal via an optically isolated dry contact and serial communication. This
provides positive feedback that the trip unit has received and reacted to the RELT Enable command.
RELT harness consists of four wires for this input and output signal
The EntelliGuard TU trip unit’s RELT capability provides the ultimate in user flexibility for wiring and
controlling an alternate Instantaneous setting for temporary use to reduce personnel hazard.
The RELT switch may be connected to a manually operated two-position switch, a remote sensor, or
both simultaneously. The EntelliGuard TU trip unit provides a feedback capability directly from the
trip so the user is able to verify that the signal was received by the trip unit and the settings have
changed. Optionally, an indicating light may also be connected to the source of control power so the
user knows if control power is available to change the setting. The trip unit does not require its own
control power to accept a RELT input and change the Instantaneous trip pickup according to the user
settings. However, if control power is available to the trip unit, the feedback signal will function
immediately, rather than when the trip unit becomes self-powered through its load current (Fig. 1).
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Figure 1
Section 2 in this instruction manual explains the process of upgrading the LV power Circuit Breaker
from MVT (Microversatrip Plus and PM) to Entelliguard TU with RELT. Sections 3 to 7 have the
process of routing the “RELT wire harness” in different types of GE circuit breaker as supplemental to
base instruction manual.
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TABLE OF CONTENTS
Page
SECTION 1 Prior To Installation…………………………………………………..……………………………….4
SECTION 2 Installation instructions for “RELT wire harness kit” GTURHA.……………….5
SECTION 3 Supplement to GEH – 5965…………….…………………………………………………………..8
SECTION 4 Supplement to GEH – 5966…………….…………………………………………………………..10
SECTION 5 Supplement to GEH – 5967…………….…………………………………………………………..12
SECTION 6 Supplement to GEH – 5964…………….…………………………………………………………..14
SECTION 7 Supplement to GEH – 6466…………….…………………………………………………………..16
SECTION 8 Supplement to DEH-40008 & DEH-40009..………………………………………………..19
SECTION 9 Supplement to GEH-6293, GEH-6294, GEH-6295, GEH-6433, DEH-40019 &
DEH-133..…………………………………………………………………………………………………....21
SECTION 10 Supplement to GEH-6318, GEH-6319, GEH-6320 & DEH-023.………………....23
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SECTION 1 Prior To Installation
1. 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.
2. 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.
3. Completely read and understand all instructions before attempting any breaker installation,
operation, maintenance, or modification.
4. 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.
5. 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.
6. Trip the breaker OPEN, then remove the breaker to a well-lighted work area before beginning
work.
7. 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.
8. 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.
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SECTION 2 Installation instructions for “RELT wire harness kit” (Catalogue Number – GTURHA)
For GE type AK, AKT, AKS, AKU, AKJ, AKR, AKRU, AKRT, AKJT, AKW
Low Voltage Power Circuit Breakers.
Installing the RELT wire harness
1. Remove the existing MVT trip unit from breaker by pressing
the lever on side of trip unit mounting plate and gently pull
the trip unit toward yourself as facing the breaker,.
Figure 2
2. Loosen the three screws with screwdriver as shown in
figure 3.
Save the screws, washer and nut for mounting back the
plate later.
Figure 3
3. Rotate the mounting plate from frame, being careful not to
pull on existing wires.
Figure 4
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Wire
Slot in 36
connect
Functio
35 24 V DC
+
White
36
2
4 V DC
-
4. Take the “RELT wire harness” (4 wire harness) provided
with kit and insert the pins at the end of wire to respective
terminal on 36-pin connector.
Individual wires in harness are color coded and numbered.
The pins should be inserted at correct places on backside
of 36-pin connector. Refer figure 7 and table 1.
Table 1
Figure 5
Wire Colour
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
Slot in 36 pin
connector
Function
5. The control power supply voltage to trip unit shall be
given through wires 1 and 2 of communication harness
already installed in breaker or supplied.
In case when communication wire harness is not
installed on the breaker, use the power supply harness (2
wire harness) supplied with the kit.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 2.
Table 2
Black
Figure 6
Figure 7
Figure 8
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6. Tie these extra four wires (or 6 wires) with other
wires at back of 36-pin connector properly.
Inspect the 36-pin connector from front side of
plate for extra four connectors installed.
7 Take the earlier removed sets of screws, washers and
nuts.
Figure 9
Install the mounting plate again on frame by
tightening the screws at three locations.
Figure 10
9. Route the RELT & power supply wire harnesses as
instructed in following section 2 to section 6 depends
on breaker type.
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SECTION 3 Supplement to GEH-5965
For GE type AK-50, AKU-50, AKS-50, AKT-50, AK-75, AK-100 Low Voltage Power
Circuit Breakers.
Following text is in addition to Section 3 of GEH5965
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from left of trip
unit mounting plate as shown in figure 11.
2. Secure the wires with wire tie as shown in figure 12 and
apply caution label supplied with kit on both breaker
frame & compartment door.
3. Mount the new Entelliguard TU on front frame.
4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
Figure 11
Figure 12
Figure 13
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5. The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 3
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 4.
Figure 14
Table 4
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
-
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SECTION 4 Supplement to GEH-5966
For GE type AKR-30, AKR-50, AKJ-50, AKRU-30, AKRU-50, SKR-30H, AKR-50H, AKRT50, AKRT-50H, AKJT-50, AKJT-50H Low Voltage Power Circuit Breakers.
Following text is in addition to Section 3 of GEH5966
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from left of
trip unit mounting plate, going around the breaker from
backside and ending at right side of frame. Same way as
the “Communication wire harness is routed”, as shown in
figure 15 and 16.
2. Secure the wires with wire tie and apply caution label
supplied with kit on both breaker frame & compartment
door.
3. Mount the new Entelliguard TU on front frame.
Figure 15
Figure 16
Figure 17
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4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
5. The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 5
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Figure 18
Figure 19
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Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 6.
Table 6
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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SECTION 5 Supplement to GEH-5967
For GE type AK-15, AK-25, AKU-25, AKR-30S, AKRU-30S Low Voltage Power Circuit
Breakers.
Following text is in addition to Section 3 of GEH5967
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from right of
trip unit mounting plate as shown in figure 20.
Figure 20
2. Secure the wires with wire tie and apply caution label
supplied with kit on both breaker frame & compartment
door.
Figure 21
3. Mount the new Entelliguard TU on front frame.
4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
Figure 22
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5. The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 7
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 8.
Figure 23
Table 8
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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SECTION 6 Supplement to GEH-5964
For GE type AKR-75, AKR-100 Low Voltage Power Circuit Breakers.
Following text is in addition to Section 3 of GEH5964
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from left of
trip unit mounting plate as shown in figure 24.
2. Secure the wires with wire tie as shown in figure 25 and
apply caution label supplied with kit on both breaker
frame & compartment door.
3. Mount the new Entelliguard TU on front frame.
4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
Figure 24
Figure 25
Figure 26
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5. The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 9
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 10.
Figure 27
Table 10
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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SECTION 7 Supplement to GEH-6466
For GE type AK-1-15, AK-1-25 Low Voltage Power Circuit Breakers.
Following text is in addition to Section 4 of GEH5964 after installing the communication harness
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) along the top
surface of cubicle towards right as shown in figure 28.
2. Secure the wires with wire tie and apply caution label
supplied with kit on both breaker frame & compartment
door.
3. Mount the new Entelliguard TU on front frame.
4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
5. The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Figure 28
Black and white wires are for output from trip
unit.
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 12.
Table 11
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
Figure 29
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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SECTION 8 Supplement to DEH-40008 & DEH-40009
For Allis Chalmers LA-600, LA-800, LA-1600, Blue & Gold version Low Voltage Power
Circuit Breakers.
Following text is in addition to Section 4 of DEH-40008 & DEH-40009
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from right of
trip unit mounting plate as shown in figure 30. Secure the
extra length of wire harness by coiling inside steel rail as
shown in figure.
2. Secure the wires harness with wire tie to the frame in a
location where it is accessible in switchgear. Figure 31
shows a suggested location. The actual location is
dependent on the configuration of equipment and may
be determined by field engineer.
Generally this RELT wire harness is routed along with
communication wire harness & tied at the same location
as communication wire harness.
Apply caution label supplied with kit on both breaker
frame & compartment door.
3. Mount the new Entelliguard TU on front frame.
4. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
Figure 30
Figure 31
Figure 32
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5 The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 12
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
6. If required to use the power supply harness for
control power supply, rout the 2-wire harness in
same way above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 14.
Figure 33
Table 13
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
7. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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SECTION 9 Supplement to GEH-6293, GEH-6294, GEH-6295, GEH-6433, DEH-40019 & DEH-133
For I-T-E K-225, K-600, K-800, K-1600, K-2000, K-3000, K-4000, KA, KB (Metal), KB
(Steel) , KC, KD & KE Low Voltage Power Circuit Breakers.
Following text is in addition to Section 4 of GEH-6293, GEH-6294, GEH-6295, GEH-6433, DEH-133 and
addition to Section 3 of DEH-40019
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from right of
trip unit mounting plate as shown in figure 34. .
2. Secure the wires harness with wire tie to the frame in a
location where it is accessible in switchgear. Figure 34
shows a suggested location. The actual location is
dependent on the configuration of equipment and may
be determined by field engineer.
Generally this RELT wire harness is routed
along with communication wire harness &
tied at the same location as communication
wire harness.
Figure 34
3. Apply caution label supplied with kit on both breaker
frame & compartment door.
4. Mount the new Entelliguard TU on front frame.
Figure 35
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5. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
6 The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 14
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
8. If required to use the power supply harness for control
power supply, rout the 2-wire harness in same way
above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 16.
Figure 36
Figure 37
Table 15
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
9. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
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Wire Tie
SECTION 10 Supplement to GEH-6318, GEH-6319, GEH-6320 & DEH-023
For Westinghouse DB-15, DB-25, DBL-25, DB-50, DB-75, DBL-75, DB-100, DBL-100,
DS-206, DSL-206, DS-416, DSL-416, DS-420 & DS-632 , Low Voltage Power Circuit
Breakers.
Following text is in addition to Section 4 of GEH-6318, GEH-6319, GEH-6320 and DEH-023
Routing the RELT wire harness
1. Route the RELT wire harness (set of 4 wires) from right of
trip unit mounting plate as shown in figure 38. .
2. Secure the wires harness with wire tie to the frame in a
location where it is accessible in switchgear. Figure 39
Figure 38
shows a suggested location. The actual location is
dependent on the configuration of equipment and may
be determined by field engineer.
Generally this RELT wire harness is routed
along with communication wire harness &
tied at the same location as communication
wire harness.
Figure 39
3. Apply caution label supplied with kit on both breaker
frame & compartment door.
4. Mount the new Entelliguard TU on front frame.
Figure 40
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5. The other wire harness supplied loose with kit shall be
connected to the RELT wire harness to signal the input or
output.
7 The wires in harness are color coded for input
and output. Yellow and red wires are for input to
trip unit.
Black and white wires are for output from trip
unit.
Table 16
Wire Colour
Slot in 36 pin
connector
Function
Red 4 Input +
Yellow 2 Input -
Black 30 Output +
White 27 Output -
10. If required to use the power supply harness for control
power supply, rout the 2-wire harness in same way
above RELT wire harness.
Individual wires in power supply harness are color coded
and numbered. The pins should be inserted at correct
places on backside of 36-pin connector. Refer table 18.
Figure 41
Figure 42
Table 18
Wire Colour
Black 35
White 36 25 V DC Supply
Slot in 36 pin
connector
Function
24 V DC Supply +
-
11. Refer Entelliguard TU Installation manual DEH4567 for detailed description of input and output
signal requirements.
g _______
41 Woodford Ave.
Plainville, CT 06062
DEH-3456 R02 0410 2009 General Electric Company
General Electric Company
GE Consumer & Industrial
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