SE-105 Manual Datasheet by Littelfuse Inc.

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3714 Kinnear Place Saskatoon, SK Canada S7P 0A6 Ph: (306) 373-5505 Fx: (306) 374-2245 www.littelfuse.com/relayscontrols
SE-105 MANUAL
GROUND-FAULT GROUND-CHECK MONITOR
REVISION 13-D-050315
F1
F2
RESETGROUND
FAULT
GROUND
FAULT
GF TRIP
TIME (s)
GF TRIP
TIME (s)
POWER
GROUND
CHECK
GROUND
CHECK
CT1
CT2
A B
GICISW
L1
GC
L2
G
MODE
GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
GF-GC MONITORGF-GC MONITOR
SE-105
ENHANCED
FILTERING
ENHANCED
FILTERING
Copyright 2015 by Littelfuse Startco
All rights reserved.
Document Number: PM-1300-EN
Printed in Canada.
& Llueltuse' STARTCD
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
TABLE OF CONTENTS
SECTION PAGE
1 General ................................................................. 1
2 Operation ............................................................. 1
2.1 Settings .................................................................. 1
2.1.1 GF Trip Time ............................................. 1
2.1.2 GF .............................................................. 1
2.1.3 Mode .......................................................... 1
2.2 Indication and Reset .............................................. 1
2.3 Fusing .................................................................... 1
3 Installation ........................................................... 2
3.1 SE-105 .................................................................. 2
3.2 Ground-Fault CT ................................................... 4
3.3 Ground-Check Termination .................................. 5
3.4 Remote Operation ................................................. 6
3.5 Parallel-Path Isolation ........................................... 6
3.6 Ground-Fault Testing ............................................ 6
4 Compatibility ....................................................... 6
5 Technical Specifications ................................... 12
5.1 SE-105 ................................................................ 12
5.2 Current Sensors ................................................... 13
5.3 Termination Assemblies ..................................... 13
6 Ordering Information ....................................... 13
7 Warranty ........................................................... 14
8 Ground-Fault Performance Test ..................... 15
Appendix A SE-105 Revision History ......................... 16
LIST OF FIGURES
FIGURE PAGE
1 Typical Application .............................................. 3
2 SE-105 Outline and Mounting Details .................. 4
3 CT200 and CT200L Current Transformers .......... 5
4 Zener-Diode Termination Devices ........................ 6
5 SE-TA6 Termination Assembly ............................ 7
6 SE-TA6ASF-WL Small-Format Termination
Assembly with Wire Leads ................................... 7
7 RK-102 Remote Indication and Reset Kit ............ 8
8 RK-105 Remote Indication-and-Reset Assembly . 8
9 RK-105I Remote Indication Assembly ................. 9
10 RK-13 Relay Interface Module ............................. 9
11 PPI-600V Parallel-Path Isolator .......................... 10
12 PPI-600V Typical Installation ............................ 11
13 Ground-Fault-Test Circuits ................................. 15
LIST OF TABLES
TABLE PAGE
1 Terminal Designations .......................................... 6
2 Ground-Fault-Test Record .................................. 15
DISCLAIMER
Specifications are subject to change without notice.
Littelfuse Startco is not liable for contingent or
consequential damages, or for expenses sustained as a
result of incorrect application, incorrect adjustment, or a
malfunction.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
1. GENERAL
The SE-105 is a combination ground-fault and ground-
check monitor for resistance-grounded systems in non-
hazardous applications. The ground-fault circuit is
latching and the ground-check circuit is typically non-
latching. One output contact is provided for contactor
control, or for shunt or undervoltage operation in a
breaker trip circuit.
Ground-fault current is sensed by a CT200-series
current transformer. A trip level of 0.5, 2.0, or 4.0 A is
switch selectable for use with a 5-, 15-, or 25-A
grounding resistor. Enhanced filtering eliminates false
ground-fault trips from adjustable-speed-drive harmonic
distortion. Trip time is adjustable from 0.1 to 2.0
seconds.
The fail-safe ground-check circuit is validated by an
end-of-line termination with a 5.6-volt Zener
characteristic. The Zener-characteristic clamps induced
voltage and allows induced current to flow in the ground-
check loop. Consequently, induced-ac-withstand
capability, noise immunity, and open/short detection are
independent of current in the phase conductors.
Enhanced filtering prevents false ground-check validation
due to an active chopper condition. See
www.littelfuse.com/relayscontrols for Technical Note
GC-1.
NOTE: The SE-105 is not a lock-out device. Follow
lock-out procedures for maintenance.
2. OPERATION
2.1 SETTINGS
2.1.1 GF TRIP TIME
Ground-fault trip time is adjustable from 0.1 to
2.0 seconds. Time-coordinated ground-fault protection
requires this setting to be longer than the trip time of
downstream ground-fault devices.
2.1.2 GF
The ground-fault-circuit trip level is 0.5, 2.0, or 4.0 A
when current is sensed with a CT200-series current
transformer. Since the ground-fault-circuit trip level
should not be greater than 20% of the grounding resistor
let-through current, these levels are appropriate for use
with 5-, 15-, or 25-A grounding resistors. For other
applications, the trip level of the ground-fault circuit is
0.25, 1.0, or 2.0% of the primary rating of the 5-A-
secondary current transformer.
2.1.3 MODE
In the shunt-trip mode (SH), the output relay energizes
and its contact closes if the ground-check loop becomes
invalid or if a ground-fault trip occurs. The shunt-trip
mode is not fail-safe and is not recommended because:
Shunt-trip devices do not operate if supply voltage
fails.
Shunt-trip ground-check circuits allow open cable
couplers to be energized for a short interval after
supply voltage is applied.
In the undervoltage mode (UV), the output relay is
energized and its contact is closed when the ground-check
loop is valid and the ground-fault circuit is not tripped.
The undervoltage mode is referred to as fail-safe and is
recommended because:
Undervoltage devices release if supply voltage fails.
Undervoltage ground-check circuits do not allow
cable couplers to be energized until the ground-check
loop is verified.
For fail-safe-only applications, use an SE-107 Ground-
Fault Ground-Check Monitor.
2.2 INDICATION AND RESET
The blue POWER LED indicates that the internal
power supply is on. The red GROUND FAULT LED
indicates a ground-fault trip and the green GROUND
CHECK LED indicates a valid ground-check loop. When
a ground-fault trip occurs, the SE-105 remains latched
until the reset button is pressed or the supply voltage is
cycled. The ground-check circuit is non-latching and
does not require a reset. Terminals are provided for
remote indication and reset as shown in Fig. 1.
For latching ground-check (Option L), the
GROUND CHECK LED is red and it indicates a latched
ground-check trip.
2.3 FUSING
The output contact is protected by fuse F1 (4.0 A, time
delay). The ground-check circuit is protected by fuse F2
(0.5 A, time delay).
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
3. INSTALLATION
3.1 SE-105
SE-105 outline and mounting details are shown in
Fig. 2. Typical connections are shown in Fig. 1. Connect
supply voltage to L1 and L2. For a 120-Vac supply,
connect supply neutral to L2. For direct-current supply
(Option D), connect supply negative to L2. Connect
chassis-bonding terminal to ground.
Connect contact terminals A and B as required.
Faceplate LED's are driven in series with remote-
indication LED's. When a remote kit is not used,
terminals CI, +, and GI must be connected for the face-
plate LED’s to operate. These jumpers are installed at the
factory.
Connect terminal GC to the outgoing ground-check
conductor and connect terminal G to ground. To meet
electrical code requirements, do not jumper chassis-
bonding terminal to terminal G.
Install the upper terminal-block cover to prevent
inadvertent contact with line terminals.
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Page 3
SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
CT200
GROUND
GROUND CHECK
UV
120 VAC
NOTE 1
STOP
START
LOAD
RESET SWITCH
RED
GREEN
REMOTE INDICATION AND RESET
LN GC
G
GC
G
R
S
1
R
S
2
C
G
I
G
R
I
+
S
WK1 K2
SW CI/GI + GI/RI
TB1
F2
R
S
1
R
S
2
C
G
I
G
R
I
+
S
WK1 K2
SW CI/GI + GI/RI
TB1
F2
RED
GREEN
RK-13 CONNECTION WITH REMOTE INDICATION AND RESET
24-120 Vac/Vdc
K1 K2
RK-13 CONNECTION WITHOUT REMOTE INDICATION OR RESET
F2
K1 K2
GI
+
CI
SW
GI
+
CI
SW
NOTE 1
NOTES:
1. SEE ORDERING INFORMATION FOR
TERMINATION DEVICES. 5-W AXIAL
LEAD DEVICE INCLUDED.
2. K1 CLOSES ON GROUND-CHECK VALID.
FOR OPTION L, K1 CLOSES ON
GROUND-CHECK TRIP.
K2 CLOSES ON GROUND-FAULT TRIP.
NOTE 2
NOTE 2
F1
F2
RESET
GROUND
FAULT
GROUND
FAULT
GF TRIP
TIME (s)
GF TRIP
TIME (s)
POWER
GROUND
CHECK
GROUND
CHECK
CT1
CT2
A B
GICISW
L1
GC
L2
G
MODE
GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
GF-GC MONITOR
SE-105
ENHANCED
FILTERING
ENHANCED
FILTERING
GICISW GC G
GF-GC MONITOR
SE-105
GICISW GC G
GF-GC MONITOR
SE-105
GICISW GC G
GF-GC MONITOR
SE-105
USE LOW-
LEVEL
CONTACTS
HOLD-IN
CONTACT
GROUND-CHECK
TERMINATION
ALTERNATE TERMINATION CIRCUIT
FOR REMOTE CONTACTOR CONTROL
GROUND-FAULT
INDICATOR
GROUND-CHECK
INDICATOR
RESET SWITCH
GROUND-FAULT
INDICATOR
GROUND-CHECK
INDICATOR
ALTERNATE
RESET CIRCUIT
FIGURE 1. Typical Application.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
3.2 GROUND-FAULT CT
Outline and mounting details for CT200 and CT200L
current transformers are shown in Fig. 3. Pass the phase
conductors through the CT window as shown in Fig. 1.
Do not pass the ground or ground-check conductors
through the CT. In applications that require shields or
drain wires to pass through the CT, return them through
the CT before connecting them to ground.
Connect the secondary of the ground-fault CT to
SE-105 terminals CT1 and CT2. The CT connection to
the SE-105 is not polarity sensitive. Ground one side of
the CT secondary.
NOTE: The CT200 and CT200L are 600-V-rated current
transformers. When system voltage is above 600 V,
ensure conductors passed through the sensor window are
insulated to system voltage.
109.0
(4.29)
88.9
(3.50)
4.8 (0.19) DIA
43.5
(1.71)
NOTE 5
NOTE 5
NOTE 4
F1
F2
RESET
GROUND
FAULT
GROUND
FAULT
GF TRIP
TIME (s)
GF TRIP
TIME (s)
POWER
GROUND
CHECK
GROUND
CHECK
CT1
CT2
A B
GICISW
L1
GC
L2
G
MODE
GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
GF-GC MONITOR
SE-105
ENHANCED
FILTERING
ENHANCED
FILTERING
139.7
(5.50)
150.0
(5.90)
43.5
(1.71)
100.0
(3.93)
77.8
(3.06)
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. TERMINAL-BLOCK SCREWS: 6-32 x 0.25.
3. MOUNTING SCREWS: M4 OR 8-32.
4. SHOWN WITH TERMINAL-BLOCK COVER REMOVED.
5. MINIMUM CLEARANCE FOR FUSE REMOVAL.
FIGURE 2. SE-105 Outline and Mounting Details.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
D
E
A
B
FRONT
44.5 MAX
(1.75)
NOTES:
1. DIMENSIONS IN MILLIMETRES
(INCHES).
2. MOUNTING SCREWS: M4 OR
8-32.
X1 X2
BLACK
WHITE
SIDE
9.4
(0.37)
F
B
C
22.2
(0.87)
44.5
(1.75)
TAP M4 OR 8-32
BOTTOM MOUNTING DETAIL
PART
NUMBER
DIMENSIONS
CT200
CT200L
A
55.9 (2.20)
88.9 (3.50)
B
120.7 (4.75)
154.0 (6.06)
C
101.6 (4.00)
133.4 (5.25)
D
98.3 (3.87)
139.7 (5.50)
E
108.0 (4.25)
144.5 (5.69)
F
5.6 (0.22)
7.1 (0.28)
FIGURE 3. CT200 and CT200L Current Transformers.
3.3 GROUND-CHECK TERMINATION
Install the ground-check termination at the load to
complete the ground-check loop as shown in Fig. 1.
Termination outlines and mounting details are shown in
Figs. 4, 5, and 6. Use only a Littelfuse Startco
termination device; others may not meet performance
requirements. Connect terminal G of the termination to
the equipment frame so that the ground-conductor-to-
equipment-frame connection is included in the monitored
ground-check loop. Connect terminal GC of the
termination to the incoming ground-check conductor.
If ground-check interlocks are used, low-level
(bifurcated, precious-metal, or sealed-reed) contacts are
recommended.
If used as a ground-fault monitor only, install the
termination at the SE-105.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
3.4 REMOTE OPERATION
Terminals SW, CI, , and GI are provided for remote
LED indication and remote reset as shown in Fig. 1.
Remote LED's are driven in series with the front-panel
LED's.
Remove factory-installed jumpers from terminals CI,
+, and GI, and connect a remote kit as shown in Fig. 1.
Optional remote kits are shown in Figs. 7, 8, and 9.
Standard LED indicator lamps are not compatible with
the SE-105.
For general-purpose applications, use the RK-105
Remote Indication-and-Reset Assembly or the RK-105I
Remote Indication Assembly. Connect terminals SW,
CI, +, and GI to remote-kit terminals SW, CI/RI, +, and
GI.
For 22-mm-component applications, use the RK-102
Remote Indication and Reset Kit. Connect terminal X2
of the green ground-check indicator to CI, terminal X2
of the red ground-fault indicator to GI, and connect
indicator X1 terminals to +. For remote reset, connect
the normally open push-button switch across terminals +
and SW.
If indication is required from a separate voltage
source, or if separate ground-fault and ground-check
contacts are required, use an RK-13 Relay Interface
Module. The RK-13 mounts on the SE-105 lower
terminal block and is compatible with the RK-102,
RK-105 and RK-105I. See Figs. 1 and 10. Contact K1
closes when the GC LED is on and contact K2 closes
when the GF LED is on.
3.5 PARALLEL-PATH ISOLATION
A PPI-600V can be used for parallel-path rejection. A
PPI-600V will also eliminate intermachine arcing and
prevent stray ac and dc currents from flowing in the
monitored ground wire. See Figs. 11 and 12. See
Technical Note GC-10 “Parallel Path Isolator” at
www.littelfuse.com/relayscontrols, or contact Littelfuse
Startco for application details.
3.6 GROUND-FAULT TESTING
Use CT-primary current injection to test the ground-
fault circuit. Fig. 13 shows test circuits using the SE-400
Ground-Fault-Relay Test Unit and the SE-100T Ground-
Fault-Relay Tester. The SE-400 has a programmable
output of 0.5 to 9.9 A for a duration of 0.1 to 9.9
seconds. The SE-100T has LO and HI outputs for 5- and
15-A resistance-grounded systems.
A test-record form is provided in Section 8 of this
manual. Record the test results and test dates on this
form to meet the requirements of the National Electrical
Code (NEC). Retain the form so that the test data can be
made available to the authority having jurisdiction.
4. COMPATIBILITY
The SE-105 is a direct replacement for the SEL-100,
SEL-100TD, SE-101, SE-101S, SE-102, SE-102S, SE-
102M, SE-103, and SE-103S. Terminal designations
have been changed as shown in Table 1.
Terminals CT1 and CT2 are transformer isolated so
that the CT secondary can be grounded. Units with old
designations do not allow the secondary of the ground-
fault CT to be grounded when the ground-check circuit
is used.
TABLE 1. TERMINAL DESIGNATIONS
OLD
DESIGNATION SE-105
DESIGNATION
CT
CT
(RELAY)
(RELAY)
L
N
SW
PL
+
GL
P
G
CT1
CT2
A
B
L1
L2
SW
CI
+
GI
GC
G
69.9
(2.75)
GGC
TERMINATION MUST
BE INSTALLED AT
LOAD.
G
1N5339B
0.25” - 28 UNF
SE-TA6-SM
GGC
35.0
(1.38)
250 (9.84) LENGTH OF # 14 AWG
YELLOW STRANDED WIRE
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. CAN BE IMMERSED IN GLYCOL.
10.0
(0.40)
FIGURE 4. Zener-Diode Termination Devices.
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Page 7
SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
G
GC
SE-TA6
TERMINATION
ASSEMBLY
40.0
(1.57)
67.0
(2.64)
4.5 (0.18) Ø, C’BORE 10.0 (0.39) Ø
3.2 (0.13) DEEP
41.5
(1.63)
22.2
(0.87)
10.5
(0.41)
40.0
(1.57)
19.0
(0.75)
8.0
(0.31)
TAP M4
OR 8-32
51.0
(2.01)
67.0
(2.64)
FRONT SIDE MOUNTING DETAIL
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. TERMINAL-BLOCK SCREWS: 6-32 x 0.25.
3. MOUNTING SCREWS: M4 OR 8-32.
4. ENCLOSURE IS ELECTRICALLY CONNECTED
TO TERMINAL G.
5. CAN BE IMMERSED IN GLYCOL.
FIGURE 5. SE-TA6 Termination Assembly.
NOTE 2
4.0
(0.16)
50.8
(2.00)
12.7
(0.50)
3.2
(0.13)
MOUNTING DETAIL
12.7
(0.50)
SIDE
58.8
(2.32)
19.0
(0.75)
GC
300 (12) OF
YELLOW WIRE
G
300 (12) OF
GREEN/YELLOW WIRE TOP
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS M3.5 OR 6-32.
3. CAN BE IMMERSED IN GLYCOL.
LR 53428
US
C
R
Rev:
SE-TA6ASF-WL
SE-TA6ASF-WL
Serial No:
01
DE130600619
Rating: 5.6 Vdc @ 105 mA 12 W Max
Use with: SE-134, SE-134C, SB6100
TERMINATION ASSY
FIGURE 6. SE-TA6ASF-WL Small-Format Termination Assembly with Wire Leads.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
NOTES:
1. DIMENSIONS IN MILLIMETRES
(INCHES).
2. ----- INDICATES CLEARANCE
REQUIRED.
3. PANEL THICKNESS 1.0 TO 6.0
(0.04 TO 0.24).
4. NEMA 4X.
5. CERTIFICATIONS NOT SHOWN.
30.0
(1.18)
22.2 (0.87) DIA
25.0
(0.98)
15.0
(0.59)
22.5
(0.89)
MOUNTING DETAIL
30.0 MINIMUM
(1.18)
40.0 MINIMUM
(1.57)
36.6
(1.44)
17.3
(0.68)
29.9
(1.17)
43.5
(1.71)
36.6
(1.44)
14.9
(0.59)
29.9
(1.17)
43.5
(1.71)
LEGEND
PLATE
LEGEND PLATES
RESET GROUND CHECK GROUND FAULT
NOTE 2
LED PILOT LIGHTS
PUSH BUTTON
FIGURE 7. RK-102 Remote Indication and Reset Kit.
R
30.0
(1.18)
25.0
(0.98)
CI/RI
+
GI
SW
GROUND CHECK
GROUND FAULT
RESET
RK-105
60.0
(2.36)
44.5
(1.75)
7. 7
(0.30)
10.0
(0.40)
28.58
(1.125)
OUTLINE
96.0
(3.78)
76.0
(3.00)
1.25”
CONDUIT
KNOCKOUT
1.70” DIA
22.25
(0.875)
3.8 (0.15)
DIA
MOUNTING DETAILFRONT VIEW
SIDE VIEW
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FIGURE 8. RK-105 Remote Indication-and-Reset Assembly.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
CI/RI
+
GI
SW
RK-105I
R
GROUND CHECK
GROUND FAULT
30.0
(1.18)
25.0
(0.98)
SIDE VIEW FRONT VIEW
60.0
(2.36)
44.5
(1.75)
7. 7
(0.30)
10.0
(0.40)
28.58
(1.125)
OUTLINE
96.0
(3.78)
76.0
(3.00)
1.25”
CONDUIT
KNOCKOUT
1.70” DIA
22.25
(0.875)
3.8 (0.15)
DIA
MOUNTING DETAIL
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FIGURE 9. RK-105I Remote Indication Assembly.
R
S
1
R
S
2
C
G
I
G
R
I
+
S
WK1 K2
R
S
1
R
S
2
C
G
I
G
R
I
+
S
WK1 K2
TB1
SW CI/GI +GI/RI
31.0
(1.22)
47.5
(1.87)
60.2
(2.37)
SIDE VIEW
RK-13 SHOWN MOUNTED ON SE-105/SE-107/SE-325
21.0
(0.83)
INSTALLATION INSTRUCTIONS:
1. REMOVE FOUR LEFTMOST LOWER TERMINAL BLOCK SCREWS.
2. PLACE RK-13 ON TERMINAL BLOCK AND REPLACE SCREWS.
3. MAKE REQUIRED CONNECTIONS TO TERMINAL BLOCK TB1.
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. CERTIFICATIONS NOT SHOWN.
FIGURE 10. RK-13 Relay Interface Module.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
9.5 DIA.
(0.38 DIA.)
12.7
(0.50)
19.1
(0.75)
19.1
(0.75)
63.5
(2.50)
8-32 TAP
260.4
(10.25)
190.5
(7.50)
34.9
(1.38) 152.4
(6.00)
34.9
(1.38)
235.0
(9.25)
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
38.1
(1.50)
38.1
(1.50)
26.2
(1.03)
102.4
(4.03)
FIGURE 11. PPI-600V Parallel-Path Isolator.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
GROUND CHECK MONITOR
SE-105, SE-107, SE-134C, OR SE-135
CABLE
GROUND
G
GROUND
CHECK
GC
GC
G
OUTGOING
GROUND CHECK
OUTGOING
GROUND
INCOMING
GROUND
CHASSIS GROUND BUS PPI-600V
NOTES:
1. THE PARALLEL-PATH ISOLATOR IS NOT POLARIZED. EITHER FLANGE CAN BE
CONNECTED TO CHASSIS.
2. THE OUTGOING GROUND MUST BE ISOLATED FROM THE CHASSIS GROUND BUS.
IF A FLANGE-MOUNTED RECEPTACLE IS USED, VERIFY THAT THE FLANGE IS ISOLATED
FROM THE GROUND PIN, AND
- USE A MATING PLUG WITH A NON-METALLIC HOUSING, OR
- ISOLATE THE FLANGE FROM THE CHASSIS IF THE MATING PLUG HAS A
METALLIC HOUSING.
3. CABLE PLUGS AND RECEPTACLES WITH GROUNDED METAL HOUSING MUST BE
ISOLATED FROM GROUND TO PREVENT PARALLEL GROUND PATHS.
4. FOR SYSTEMS ABOVE 600 VAC, CONNECT A V131DA40 MOV ACROSS THE PPI-600V.
FIGURE 12. PPI-600V Typical Installation.
& Llueltuse' STARTCD
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
5. TECHNICAL SPECIFICATIONS
5.1 SE-105
Supply:
ac ............................................ 10 VA, 120 or 240 Vac
(+10, -45%), 50/60 Hz
ac/dc ....................................... 5 W, 120 Vdc (+40, -8%);
10 VA, 120 Vac
(+10, -45%), 50/60 Hz
NOTE: Voltage between supply terminals (L1, L2) and
ground terminal (G) must not exceed 300 Vac continuous
or 1,250 Vac under transient conditions.
Dimensions:
Height ................................. 150 mm (5.9”)
Width .................................. 109 mm (4.3”)
Depth .................................. 100 mm (4.0”)
Shipping Weight....................... 1 kg (2.2 lb)
Environment:
Operating Temperature ....... -40 to 60°C (-40 to 140°F)
Storage Temperature ........... -55 to 80°C (-67 to 176°F)
Humidity ............................. 85% Non-Condensing
Ground-Fault Circuit:
CT Ratio ............................. 200:5
CT Input Burden ................. 0.02
Trip Level
(1) ....................... 0.5, 2.0, or 4.0 A
Frequency Response ........... 25 to 110 Hz
Trip Time ............................ 0.1 to 2.0 s
Thermal Withstand
(1) ......... 200 A Continuous,
2,500 A for 2 s
Trip-Level Accuracy ........... +10, -20%
CT Lead Resistance Limit (2)
0.5 A Trip Level ......... 2
2 A Trip Level ............ 5
4 A Trip Level ............ 5
Trip-Time Accuracy ........... 10%
Trip Mode ........................... Latching
Ground-Check Circuit:
Open-Circuit Voltage ......... 12 Vdc
Output Impedance............... 240
Nominal Loop Current ........ 25 mA
Induced-ac Withstand ......... 25 Vac Continuous,
120 Vac for 3 s
Fuse Rating (F2) ................. 0.5 A, 250 Vac,
Time Delay
Fuse Part Number ............... Littelfuse 313.500 or
Bussman MDA-1/2,
MDL-1/2
Pull-in Filter ........................ Chopper Rejection
Pull-in Time ........................ 1.5 s
Trip Time ............................ 0.2 s (GC open),
0.5 s (GC to G short)
Trip-Time Accuracy ........... +10, -30%
GC-Loop
Trip Resistance(3) ................ 40 ± 10
Trip Mode ........................... Non-Latching,
Latching with Option L
Output Relay:
CSA/UL Contact Ratings ... 1 mA to 4 A Resistive,
240 Vac or 28 Vdc
Supplemental Contact Ratings:
Make/carry 0.2 s .............. 10 A
Carry continuous ............. 4 A
Break:
dc .................................. 20 W Resistive,
10 W Inductive
(L/R=0.04 s)
ac ................................... 960 VA Resistive,
700 VA Inductive
(PF=0.4)
Subject to maximums of 4 A and 240 V (ac or dc)
Contact Configuration ........ N.O. (Form A)
Fuse Rating (F1) ................. 4.0 A, 250 Vac,
Time Delay
Fuse Part Number ............... Littelfuse 313004. or
Bussman MSL-4
Operating Mode.................. UV (Undervoltage/Fail-
Safe) or SH (Shunt
Trip/Non-Fail-Safe)
Remote Indication:
.......................................... 12 Vdc
GI/CI .................................. Current Sink,
560 Internal
Optional RK-13 Module:
Contact Ratings .................. 0.08 A, 120 V (ac or dc)
0.50 A, 24 Vdc
Contact Configuration ........ N.O. (Form A)
Reset Input ......................... 24 to 120 V (ac or dc),
Isolated
PWB Conformal Coating ............ MIL-1-46058 qualified,
UL QMJU2 recognized
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
Certification .............................. CSA, Canada and USA
LR 53428
USC
R
UL Listed
Australia(4)
N11659
FCC
NOTES:
(1) Currents referred to primary of CT200 for prospective
ground-fault currents less than 4,000 A.
(2) Typical maximum CT lead resistance to meet
specified trip-level accuracy.
(3) The GROUND CHECK LED may flash when the
GC-loop trip resistance is near the trip level.
(4) Applicable only on 240 Vac Supply (Option E in the
ordering information).
5.2 CURRENT SENSORS
Environment:
Operating Temperature ....... -40 to 60°C (-40 to 140°F)
Storage Temperature ........... -55 to 80°C (-67 to 176°F)
Humidity ............................. 85% Non-Condensing
CT200:
Current Ratio ...................... 200:5 A
Insulation ............................... 600-V Class
Window Diameter ................. 56 mm (2.2”)
Shipping Weight .................... 1 kg (2.2 lb)
CT200L:
Current Ratio ...................... 200:5 A
Insulation ............................... 600-V Class
Window Diameter ................. 89 mm (3.5”)
Shipping Weight .................... 1 kg (2.2 lb)
5.3 TERMINATION ASSEMBLIES
SE-TA6:
Characteristic ...................... Zener Diode,
Unidirectional
Circuit Type ........................... High Current Shunt
Regulator
Reverse Voltage ..................... 5.6 ± 0.3 Vdc @ 25 mA
Forward Voltage .................... 0.65 ± 0.1 Vdc @ 25 mA
Operating Temperature ......... -40 to 60°C (-40 to 140°F)
Power Rating ......................... 50 W
Screw Terminal ..................... 6-32 x 0.25”
Dimensions ............................ 67 x 40 x 41.5 mm
(2.6 x 1.6 x 1.6”)
Shipping Weight ................... 200 g (0.45 lb)
SE-TA6ASF-WL:
Characteristic ...................... 6-V Zener, Temperature
Compensated
Circuit Type ........................ High-Current Shunt
Regulator
Reverse Voltage ................. 5.6 ±0.03 Vdc @ 100 mA
Forward Voltage ................. 0.5 ±0.1 Vdc @ 100 mA
Operating Temperature....... -40 to 60°C (-40 to 140°F)
Current Range .................... 2 mA to 15 A
Maximum Clamping
Voltage ............................... 55 V @ 250 A,
5x20 µs Pulse
Power Rating ...................... 12 W
Wire Leads ......................... 18 AWG (0.82 mm2),
300 mm (11.8”)
Dimensions ......................... 58.8 x 19 x 12.7 mm
(2.32 x 0.75 x 0.5”)
Shipping Weight ................. 45 g (0.1 lb)
SE-TA6-SM:
Characteristic ...................... Zener Diode,
Unidirectional
Circuit Type ........................... High Current Shunt
Regulator
Reverse Voltage .................... 5.6 ± 0.3 Vdc @ 25 mA
Forward Voltage ................... 0.65 ± 0.1 Vdc @ 25 mA
Operating Temperature ......... -40 to 60°C (-40 to 140°F)
Power Rating ......................... 50 W
Screw Terminal ..................... 0.25” – 28 UNF
Dimensions:
Body ................................ 45 mm
Wire Lead ........................ 250 mm (9.84”)
14 AWG (2.08 mm2)
Shipping Weight ................... 45 g (0.1 lb)
6. ORDERING INFORMATION
Option List
(1)
SE-105
120-Vac Supply
(2)
E 240-Vac Supply
(3)
D 120-Vac/dc Supply
L Latching Ground-Check Trip
(1)
List options required in order shown above.
(2)
Standard, leave blank.
(3)
Only Supply option available with C-Tick
certification.
Each SE-105 is supplied with a 1N5339B termination device.
Ground-Fault CT’s:
CT200 ............................... 56 mm (2.2”) window
CT200L ............................. 89 mm (3.5”) window
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
Ground-Check Termination:
1N5339B ............................ 5-W Axial Lead
Termination Device
SE-TA6 ............................... 50-W Termination
Assembly
SE-TA6-SM ........................ 50-W Stud-Mount
Termination Assembly
SE-TA6ASF-WL ................ 12-W Small-Format
Termination Assembly
with Wire Leads
Remote Indication and Reset:
RK-102 ............................... Includes two LED pilot
lights, a reset push button,
and legend plates
RK-105 ............................... Indication-and-Reset
Assembly
RK-105I .............................. Indication Assembly
RK-13 ................................. Relay Interface Module
Parallel-Path Isolator:
PPI-600V ............................ For system voltages up to
600 Vac
7. WARRANTY
The SE-105 Ground-Fault Ground-Check Monitor is
warranted to be free from defects in material and
workmanship for a period of five years from the date of
purchase.
Littelfuse Startco will (at Littelfuse Startco’s option)
repair, replace, or refund the original purchase price of an
SE-105 that is determined by Littelfuse Startco to be
defective if it is returned to the factory, freight prepaid,
within the warranty period. This warranty does not apply
to repairs required as a result of misuse, negligence, an
accident, improper installation, tampering, or insufficient
care. Littelfuse Startco does not warrant products
repaired or modified by non-Littelfuse Startco personnel.
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
8. GROUND-FAULT PERFORMANCE TEST
To meet the requirements of the National Electrical
Code (NEC), as applicable, the overall ground-fault-
protection system requires a performance test when first
installed. A written record of the performance test is to
be retained by those in charge of the electrical installation
in order to make it available to the authority having
jurisdiction. A test record form is provided for recording
the date and the final results of the performance tests.
The following ground-fault system tests are to be
conducted by qualified personnel:
a) Evaluate the interconnected system in accordance with
the overall equipment manufacturer’s detailed
instructions.
b) Verify proper location of the ground-fault current
transformer. Ensure the cable or bus passes through
the ground-fault current transformer window, and that
the grounding conductors or shields are not
encompassed by the ground-fault current transformer
in such a way as to cause ground-fault current to be
missed. These checks can be done visually with
knowledge of the circuit involved. The connection of
the current-transformer secondary to the SE-105 is not
polarity sensitive.
c) Verify that the system is correctly grounded and that
alternate ground paths do not exist that bypass the
current transformer. High-voltage testers and
resistance bridges can be used to determine the
existence of alternate ground paths.
d) Verify proper reaction of the circuit-interrupting
device in response to a simulated or controlled
ground-fault current. To simulate ground-fault
current, use CT-primary current injection. Fig. 13a
shows a test circuit using an SE-400 Ground-Fault-
Relay Test Unit. The SE-400 has a programmable
output of 0.5 to 9.9 A for a duration of 0.1 to 9.9
seconds. Set the test current to 0.6, 2.3, or 4.6 A for
SE-105 units set at 0.5, 2.0, or 4.0 A respectively.
Fig. 13b shows a test circuit using an SE-100T
Ground-Fault-Relay Tester. The SE-100T provides a
test current of 0.65 or 2.75 A for testing 0.5- and 2.0-
A trip levels. Inject the test current through the
current-transformer window for at least 2.5 seconds.
Verify that the circuit under test has reacted properly.
Correct any problems and re-test until the proper
reaction is verified.
e) Record the date and the results of the test on the
attached test-record form.
L
N
CT200
LOAD
CT200
LOAD
a) USING SE-400
b) USING SE-100T
FROM
POWER
SOURCE
FROM
POWER
SOURCE
CT1 CT2
L1
L2
L
N
OP1 OP2
L1
L2
11
3
5
1
8
9
12
RMT1
RMT2
REMOTE
TEST
SE-105
SE-400
CT1 CT2
L1
L2
L
NSE-105
L
N
L1
L2
RMT
REMOTE
TEST SE-100T
CLO
HI
0.65 A
2.75 A
FIGURE 13. Ground-Fault-Test Circuits.
TABLE 2. GROUND-FAULT-TEST RECORD
DATE TEST RESULTS
Retain this record for the authority having jurisdiction.
& Llueltuse' STARTCD HISTORY
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SE-105 Ground-Fault Ground-Check Monitor Rev. 13-D-050315
APPENDIX A
SE-105 REVISION HISTORY
MANUAL
RELEASE DATE MANUAL
REVISION PRODUCT REVISION
(REVISION NUMBER ON PRODUCT LABEL)
May 3, 2015 13-D-050315 13
April 29, 2015 13-C-042915
September 8, 2014 13-B-090814 12
July 4, 2013 13-A-070413
MANUAL REVISION HISTORY
REVISION 13-D-050315
S
ECTION 5
FCC certification added.
Updated Fuse F1 part number.
Sections 5.2 and 5.3 added.
A
PPENDIX A
Revision history updated.
REVISION 13-C-042915
S
ECTION 5
Updated Fuse F1 part number.
A
PPENDIX A
Revision history updated.
REVISION 13-B-090814
S
ECTION 3
Updated Figure 1.
S
ECTION 4
Updated Figures 5, 6, 8, and 9.
S
ECTION 5
Updated RK-13 contact ratings.
Updated notes.
A
PPENDIX A
Revision history updated.
REVISION 13-A-070413
S
ECTION 3
Updated Figure 1.
S
ECTION 4
Updated Figure 7.
A
PPENDIX A
Revision history added.
PRODUCT REVISION HISTORY
R
EVISION 13
Minor hardware change.
R
EVISION 12
No change.

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