Download SE-105 Ground-Fault Ground-Check Monitor Manual Rev

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
CT1 CT2
GROUND
FAULT
A
B
L1
L2
RESET
GROUND
CHECK
GF MODE
4.0 A SH
2.0 A
0.5 A UV
POWER
1.0
0.1
2.0
GF TRIP
TIME (s)
ENHANCED
FILTERING
SE-105
SW CI
GF-GC MONITOR
GI GC
G
F2
Copyright  2015 by Littelfuse Startco
All rights reserved.
Document Number: PM-1300-EN
Printed in Canada.
SE-105 Ground-Fault Ground-Check Monitor
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Page i
Rev. 13-D-050315
Page ii
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
TABLE OF CONTENTS
SECTION
LIST OF TABLES
PAGE
1
2
General ................................................................. 1
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
1
2
3
4
5
6
7
8
9
10
11
12
13
PAGE
Typical Application .............................................. 3
SE-105 Outline and Mounting Details .................. 4
CT200 and CT200L Current Transformers .......... 5
Zener-Diode Termination Devices........................ 6
SE-TA6 Termination Assembly ............................ 7
SE-TA6ASF-WL Small-Format Termination
Assembly with Wire Leads ................................... 7
RK-102 Remote Indication and Reset Kit ............ 8
RK-105 Remote Indication-and-Reset Assembly . 8
RK-105I Remote Indication Assembly ................. 9
RK-13 Relay Interface Module ............................. 9
PPI-600V Parallel-Path Isolator .......................... 10
PPI-600V Typical Installation ............................ 11
Ground-Fault-Test Circuits ................................. 15
TABLE
1
2
PAGE
Terminal Designations .......................................... 6
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.
SE-105 Ground-Fault Ground-Check Monitor
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Page iii
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
1. GENERAL
The SE-105 is a combination ground-fault and groundcheck monitor for resistance-grounded systems in nonhazardous applications. The ground-fault circuit is
latching and the ground-check circuit is typically nonlatching. 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 groundcheck 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-Asecondary 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
Page 1
Rev. 13-D-050315
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 GroundFault 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).
SE-105 Ground-Fault Ground-Check Monitor
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 remoteindication LED's. When a remote kit is not used,
terminals CI, +, and GI must be connected for the faceplate 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 chassisbonding terminal to terminal G.
Install the upper terminal-block cover to prevent
inadvertent contact with line terminals.
Page 2
Rev. 13-D-050315
Page 3
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
CT200
LOAD
GROUND
UV
120 VAC
L
GROUND CHECK
GC
GC
N
A
GROUND
FAULT
B
L1
G
RESET
GROUND
CHECK
GF MODE
4.0 A SH
2.0 A
0.5 A UV
POWER
NOTE 1
ALTERNATE TERMINATION CIRCUIT
FOR REMOTE CONTACTOR CONTROL
GROUND-CHECK
TERMINATION
L2
HOLD-IN
G
CONTACT
USE LOWLEVEL
CONTACTS
NOTE 1
F1
CT1 CT2
START
STOP
SE-105
GF-GC MONITOR
SW CI
GI GC
G
1.0
0.1
2.0
GF TRIP
TIME (s)
F2
ENHANCED
FILTERING
SE-105
GF-GC MONITOR
SW CI
GI GC
GI
G
RED
+
F2
CI
GROUND-FAULT
INDICATOR
GROUND-CHECK
GREEN INDICATOR
SW
RESET SWITCH
REMOTE INDICATION AND RESET
SE-105
SE-105
GF-GC MONITOR
SW CI
GI GC
CI/GI
+
CI/GI
S
W
R
S
1
R
S
2
K1
K1
S
W
R
S
1
R
S
2
K1
K1
C
G
I
+
G
R
I
+
F2
GI/RI
C
G
I
+
G
R
I
K2
K2
NOTE 2
GI
K2
K2
G
F2
GI/RI
TB1
TB1
GI GC
G
SW
SW
GF-GC MONITOR
SW CI
NOTE 2
RK-13 CONNECTION WITHOUT REMOTE INDICATION OR RESET
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.
FIGURE 1. Typical Application.
+
CI
RED
GROUND-FAULT
INDICATOR
GROUND-CHECK
GREEN INDICATOR
SW
RESET SWITCH
24-120 Vac/Vdc
ALTERNATE
RESET CIRCUIT
RK-13 CONNECTION WITH REMOTE INDICATION AND RESET
Page 4
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
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.
NOTE 5
100.0
(3.93)
43.5
(1.71)
109.0
(4.29)
88.9
(3.50)
77.8
(3.06)
F1
CT1 CT2
A
B
L1
L2
GROUND
CHECK
GF MODE
4.0 A SH
2.0 A
0.5 A UV
POWER
1.0
0.1
2.0
GF TRIP
TIME (s)
(5.90)
RESET
(5.50)
150.0
GROUND
FAULT
139.7
NOTE 4
ENHANCED
FILTERING
SE-105
SW CI
GF-GC MONITOR
GI GC
G
F2
43.5
(1.71)
4.8 (0.19) DIA
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
NOTE 5
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.
Page 5
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
44.5 MAX
(1.75)
D
NOTES:
1. DIMENSIONS IN MILLIMETRES
(INCHES).
X2
X1
E
A
2. MOUNTING SCREWS: M4 OR
8-32.
BLACK
WHITE
B
SIDE
FRONT
B
9.4
(0.37)
44.5
(1.75)
F
22.2
(0.87)
C
TAP M4 OR 8-32
BOTTOM
PART
NUMBER
MOUNTING DETAIL
DIMENSIONS
A
B
C
D
E
F
CT200
55.9 (2.20)
120.7 (4.75)
101.6 (4.00)
98.3 (3.87)
108.0 (4.25)
5.6 (0.22)
CT200L
88.9 (3.50)
154.0 (6.06)
133.4 (5.25)
139.7 (5.50)
144.5 (5.69)
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-toequipment-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.
Page 6
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
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.
3.6 GROUND-FAULT TESTING
Use CT-primary current injection to test the groundfault circuit. Fig. 13 shows test circuits using the SE-400
Ground-Fault-Relay Test Unit and the SE-100T GroundFault-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, SE102M, 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 groundfault CT to be grounded when the ground-check circuit
is used.
TABLE 1. TERMINAL DESIGNATIONS
SE-105
OLD
DESIGNATION
DESIGNATION
CT
CT
(RELAY)
(RELAY)
L
N
SW
PL
+
GL
P
G
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.
69.9
(2.75)
G
35.0
(1.38)
10.0
NOTES:
0.25” - 28 UNF
(0.40)
TERMINATION MUST
BE INSTALLED AT
LOAD.
1N5339B
250 (9.84) LENGTH OF # 14 AWG
YELLOW STRANDED WIRE
G
G
GC
GC
SE-TA6-SM
FIGURE 4. Zener-Diode Termination Devices.
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. CAN BE IMMERSED IN GLYCOL.
CT1
CT2
A
B
L1
L2
SW
CI
+
GI
GC
G
Page 7
Rev. 13-D-050315
41.5
(1.63)
40.0
(1.57)
22.2
(0.87)
40.0
(1.57)
10.5
(0.41)
19.0
(0.75)
8.0
(0.31)
SE-105 Ground-Fault Ground-Check Monitor
SE-TA6
TERMINATION
ASSEMBLY
51.0
(2.01)
67.0
(2.64)
G
67.0
(2.64)
TAP M4
OR 8-32
GC
4.5 (0.18) Ø, C’BORE 10.0 (0.39) Ø
3.2 (0.13) DEEP
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.
50.8
(2.00)
MOUNTING DETAIL
SE-TA6ASF-WL TERMINATION ASSY
Serial No: DE130600619
Rev: 01
Rating: 5.6 Vdc @ 105 mA 12 W Max C
Use with: SE-134, SE-134C, SB6100
R
US
LR 53428
12.7
(0.50)
4.0
(0.16)
3.2
(0.13)
12.7
(0.50)
NOTE 2
SIDE
G
300 (12) OF
GREEN/YELLOW WIRE
1. DIMENSIONS IN MILLIMETRES (INCHES).
19.0
(0.75)
GC
300 (12) OF
YELLOW WIRE
NOTES:
58.8
(2.32)
2. MOUNTING SCREWS M3.5 OR 6-32.
3. CAN BE IMMERSED IN GLYCOL.
TOP
FIGURE 6. SE-TA6ASF-WL Small-Format Termination Assembly with Wire Leads.
Page 8
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
30.0
(1.18)
25.0
GROUND FAULT
LEGEND
PLATE
(0.59)
NOTE 2
22.5
(0.89)
15.0
43.5
(1.71)
GROUND CHECK
(0.98)
RESET
22.2 (0.87) DIA
17.3
(0.68)
36.6
(1.44)
29.9
(1.17)
LEGEND PLATES
NOTES:
LED PILOT LIGHTS
14.9
(0.59)
30.0 MINIMUM
(1.18)
2. ----- INDICATES CLEARANCE
REQUIRED.
(1.57)
40.0 MINIMUM
43.5
(1.71)
1. DIMENSIONS IN MILLIMETRES
(INCHES).
3. PANEL THICKNESS 1.0 TO 6.0
(0.04 TO 0.24).
29.9
(1.17)
36.6
(1.44)
4. NEMA 4X.
5. CERTIFICATIONS NOT SHOWN.
MOUNTING DETAIL
PUSH BUTTON
FIGURE 7. RK-102 Remote Indication and Reset Kit.
30.0
(1.18)
60.0
(0.98)
(0.30)
10.0
7.7
(0.40)
25.0
(2.36)
44.5
(1.75)
OUTLINE
28.58
(1.125)
GROUND CHECK
GROUND FAULT
1.25”
CONDUIT
KNOCKOUT
1.70” DIA
96.0
RESET
(3.78)
76.0
(3.00)
CI/RI
+
GI
SW
RK-105
R
22.25
(0.875)
SIDE VIEW
FRONT VIEW
MOUNTING DETAIL
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FIGURE 8. RK-105 Remote Indication-and-Reset Assembly.
3.8 (0.15)
DIA
Page 9
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
30.0
(1.18)
60.0
(2.36)
44.5
(1.75)
7.7
25.0
(0.30)
10.0
(0.40)
(0.98)
OUTLINE
28.58
(1.125)
GROUND CHECK
GROUND FAULT
96.0
1.25”
CONDUIT
KNOCKOUT
1.70” DIA
(3.78)
76.0
(3.00)
CI/RI
+
GI
SW
RK-105I
R
22.25
(0.875)
SIDE VIEW
3.8 (0.15)
DIA
MOUNTING DETAIL
FRONT VIEW
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FIGURE 9. RK-105I Remote Indication Assembly.
SW
+
GI/RI
31.0
(1.22)
47.5
(1.87)
CI/GI
TB1
S
W
R
S
1
R
S
2
K1
C
G
I
+
C
G
I
+
G
R
I
K2
G
R
I
K2
SIDE VIEW
RK-13 SHOWN MOUNTED ON SE-105/SE-107/SE-325
60.2
(2.37)
R
S
1
R
S
2
K1
21.0
(0.83)
INSTALLATION INSTRUCTIONS:
S
W
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.
Page 10
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
8-32 TAP
34.9
(1.38)
152.4
260.4
(10.25)
190.5
(7.50)
63.5
(2.50)
12.7
19.1
(0.75) (0.50)
19.1
(0.75)
9.5 DIA.
(0.38 DIA.)
34.9
(1.38)
38.1
(1.50)
26.2
(1.03)
102.4
(4.03)
38.1
(1.50)
(6.00)
235.0
(9.25)
NOTES:
1.
FIGURE 11. PPI-600V Parallel-Path Isolator.
DIMENSIONS IN MILLIMETRES (INCHES).
Page 11
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
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.
SE-105 Ground-Fault Ground-Check Monitor
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
Page 12
Rev. 13-D-050315
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/FailSafe) 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
Page 13
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
Certification.............................. CSA, Canada and USA
R
C
LR 53428
US
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
Each SE-105 is supplied with a 1N5339B termination device.
(1)
(2)
(3)
List options required in order shown above.
Standard, leave blank.
Only Supply option available with C-Tick
certification.
Ground-Fault CT’s:
CT200 ............................... 56 mm (2.2”) window
CT200L ............................. 89 mm (3.5”) window
SE-105 Ground-Fault Ground-Check Monitor
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.
Page 14
Rev. 13-D-050315
Page 15
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
8. GROUND-FAULT PERFORMANCE TEST
a) USING SE-400
To meet the requirements of the National Electrical
Code (NEC), as applicable, the overall ground-faultprotection 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.
CT200
FROM
POWER
SOURCE
LOAD
CT1 CT2
L
L1
N
L2
11
L
N
3
5
SE-105
OP1
L2
8
9
12
SE-400
1
REMOTE
TEST
OP2
L1
RMT1
RMT2
b) USING SE-100T
CT200
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-FaultRelay 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 2.0A 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.
FROM
POWER
SOURCE
LOAD
CT1 CT2
REMOTE
TEST
L
L1
N
L2
SE-105
C
LO
L
L1
HI
N
L2
0.65 A
2.75 A
SE-100T
RMT
FIGURE 13. Ground-Fault-Test Circuits.
TABLE 2. GROUND-FAULT-TEST RECORD
DATE
TEST RESULTS
e) Record the date and the results of the test on the
attached test-record form.
Retain this record for the authority having jurisdiction.
Page 16
Rev. 13-D-050315
SE-105 Ground-Fault Ground-Check Monitor
MANUAL
RELEASE DATE
APPENDIX A
SE-105 REVISION HISTORY
MANUAL
PRODUCT REVISION
REVISION
(REVISION NUMBER ON PRODUCT LABEL)
May 3, 2015
13-D-050315
April 29, 2015
13-C-042915
September 8, 2014
13-B-090814
July 4, 2013
13-A-070413
MANUAL REVISION HISTORY
REVISION 13-D-050315
SECTION 5
FCC certification added.
Updated Fuse F1 part number.
Sections 5.2 and 5.3 added.
APPENDIX A
Revision history updated.
REVISION 13-C-042915
SECTION 5
Updated Fuse F1 part number.
APPENDIX A
Revision history updated.
REVISION 13-B-090814
SECTION 3
Updated Figure 1.
SECTION 4
Updated Figures 5, 6, 8, and 9.
SECTION 5
Updated RK-13 contact ratings.
Updated notes.
APPENDIX A
Revision history updated.
REVISION 13-A-070413
SECTION 3
Updated Figure 1.
SECTION 4
Updated Figure 7.
APPENDIX A
Revision history added.
PRODUCT REVISION HISTORY
REVISION 13
Minor hardware change.
REVISION 12
No change.
13
12