Startco SE-105 User manual

SE-105 MANUAL
GROUND-FAULT GROUND-CHECK MONITOR
NOVEMBER 24, 2005
REVISION 9
RESETGROUND
FAULT
GF TRIP
TIME (s)
POWER
GROUND
CHECK
CT1 CT2 AB
GICISW
L1
GC
L2
F1
F2
G
MODE GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
Copyright 2005 by Startco Engineering Ltd.
All rights reserved.
Publication: SE-105-M
Document: S95-C105-00000
Printed in Canada.

Startco Engineering Ltd. Page i
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
TABLE OF CONTENTS
PAGE
Table of Contents .............................................................. i
List of Figures ................................................................... i
List of Tables..................................................................... i
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.............................................................. 1
3.1 SE-105..................................................................... 1
3.2 Ground-Fault CT ..................................................... 4
3.3 Ground-Check Termination..................................... 4
3.4 Remote Operation.................................................... 4
3.5 Parallel-Path Isolation.............................................. 4
3.6 Ground-Fault Testing .............................................. 4
4. Compatibility ......................................................... 4
5. Technical Specifications ...................................... 11
6. Ordering Information ......................................... 12
7. Warranty .............................................................. 12
8. Ground-Fault Performance Test........................ 13
LIST OF FIGURES
FIGURE PAGE
1 Typical Application .................................................2
2 SE-105 Outline and Mounting Details..................... 3
3 Current Transformers............................................... 5
4 Zener-Diode Termination Devices...........................6
5 SE-TA6 Termination Assembly............................... 6
6 RK-102 Remote Indication and Reset .....................7
7 RK-105 Remote Indication-and-Reset Assembly....7
8 RK-105I Remote Indication Assembly....................8
9 RK-13 Relay Interface Module................................ 8
10 PPI-600V Parallel-Path Isolator............................... 9
11 PPI-600V Typical Installation ............................... 10
12 Ground-Fault-Test Circuits.................................... 13
LIST OF TABLES
TABLE PAGE
1 Terminal Designations ............................................. 4
2 Ground-Fault-Test Record ..................................... 13
DISCLAIMER
Specifications are subject to change without notice.
Startco Engineering Ltd. is not liable for contingent or
consequential damages, or for expenses sustained as a
result of incorrect application, incorrect adjustment, or a
malfunction.

Startco Engineering Ltd. Page 1
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
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
window-type 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. 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.
CAUTION: 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.
2.2 INDICATION AND RESET
The green 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 switch 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 the latching ground-check option, 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).
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 a direct-current supply,
connect supply negative to L2. Connect chassis-bonding
terminal to ground.
Connect contact terminals A and B as required.
Face-plate 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.

Startco Engineering Ltd. Page 2
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
F1
F2
CT200
GROUND
GROUND CHECK
UV
120 VAC
GROUND-CHECK
TERMINATION
5.6-V
ZENER
DIODE
5.6-V
ZENER
DIODE
STOP
HOLD-IN
CONTACT
START
USE LOW-
LEVEL
CONTACTS
ALTERNATE TERMINATION CIRCUIT
FOR REMOTE CONTACTOR CONTROL
LOAD
GROUND-FAULT
INDICATOR
GROUND-CHECK
INDICATOR
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
GROUND-FAULT
INDICATOR
GROUND-CHECK
INDICATOR
RESET SWITCH
RED
GREEN
RK-13 CONNECTION WITH REMOTE INDICATION AND RESET
ALTERNATE
RESET CIRCUIT
24-120 Vac/Vdc
K1 CLOSES ON GROUND-CHECK VALID,
DO NOT USE K1 IN A TRIP CIRCUIT.
K2 CLOSES ON GROUND-FAULT TRIP.
K1 K2
RK-13 CONNECTION WITHOUT REMOTE INDICATION OR RESET
F2
K1 K2
RESETGROUND
FAULT
GF TRIP
TIME (s)
POWER
GROUND
CHECK
CT1 CT2 AB
GICISW
L1
GC
L2
G
MODE GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
GICISW GC G
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
GICISW GC G
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
GICISW GC G
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
GI
+
CI
SW
GI
+
CI
SW
FIGURE 1. Typical Application.

Startco Engineering Ltd. Page 3
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
F1
F2
109.0
(4.29)
88.9
(3.50)
139.7
(5.50)
150.0
(5.90)
4.8 (0.19) DIA
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.
100.0
(3.93)
77.8
(3.06)
RESETGROUND
FAULT
GF TRIP
TIME (s)
POWER
GROUND
CHECK
CT1 CT2 AB
GICISW
L1
GC
L2
G
MODE GF
0.1 2.0
1.0
4.0 A
2.0 A
0.5 A
SH
UV
STARTCO
ENGINEERING LTD.
GF-GC MONITOR
SE-105
43.5
(1.71)
43.5
(1.71)
NOTE 5
NOTE 5
NOTE 4
FIGURE 2. SE-105 Outline and Mounting Details.

Startco Engineering Ltd. Page 4
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
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.
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 and 5. Connect terminal G of the termination to
the equipment frame so that the ground-conductor-to-
equipment-frame connection will be 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.
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. 6, 7, and 8.
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 RK-102 applications, 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 9. 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. 10 and 11. See
Technical Information 9.6 “Parallel Path Isolator” at
www.startco.ca, or contact Startco for application details.
3.6 GROUND-FAULT TESTING
Use CT-primary current injection to test the ground-
fault circuit. Fig. 12 shows test circuits using the Startco
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

Startco Engineering Ltd. Page 5
SE-105 Ground-Fault Ground-Check Monitor Rev. 8
Pub. SE-105-M, November 24, 2005.
D
A
E
B
FRONT
9.4
(0.37)
F
BOTTOM
B
C
TAP M4 OR 8-32
22.2
(0.87)
44.5
(1.75)
MOUNTING DETAIL
SIDE
WHITE
BLACK
X1 X2
44.5 MAX
(1.75)
NOTES:
1. DIMENSIONS IN
MILLIMETRES (INCHES).
2. MOUNTING SCREWS:
M4 OR 8-32.
PART
NUMBER
CT200
CT200L
ABCD EF
55.9 (2.20)
88.9 (3.50)
120.7 (4.75)
154.0 (6.06)
101.6 (4.00)
133.4 (5.25)
98.3 (3.87)
139.7 (5.50)
108.0 (4.25)
144.5 (5.69)
5.6 (0.22)
7.1 (0.28)
DIMENSIONS
FIGURE 3. Current Transformers.

Startco Engineering Ltd. Page 6
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
0.25" - 28 UNF
11.4
(0.45)
33.0
(1.30)
GC
G
1N4553B
GGC
69.9
(2.75)
1N5339B
NOTES:
1. DIMENSIONS IN MILLIMETRES
(INCHES).
2. MAY BE IMMERSED IN GLYCOL.
G
FIGURE 4. Zener-Diode Termination Devices.
40.0
(1.57)
19.0
(0.75)
10.5
(0.41)
8.0
(0.31)
51.0
(2.01)
67.0
(2.64)
TAP M4
OR 8-32
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. MAY BE IMMERSED IN GLYCOL.
4.5 (0.18) Ø, C'BORE 10.0 (0.39) Ø
3.2 (0.13) DEEP
67.0
(2.64)
40.0
(1.57)
GC
G
TERMINATION
ASSEMBLY
FRONT
MADE IN SASKATOON, CANADA
STARTCO
ENGINEERING LTD.
SE-TA6
22.2
(0.87)
41.5
(1.63)
SIDE
FIGURE 5. SE-TA6 Termination Assembly.

Startco Engineering Ltd. Page 7
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
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.
LEGEND PLATE
30.0
(1.18)
LEGEND
PLATE
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)
LED PILOT LIGHTS
36.6
(1.44)
17.3
(0.68)
29.9
(1.17)
43.5
(1.71)
PUSH BUTTON
36.6
(1.44)
14.9
(0.59)
29.9
(1.17)
43.5
(1.71)
FIGURE 6. RK-102 Remote Indication and Reset.
FRONT VIEW
GROUND CHECKGROUND CHECK
GROUND FAULTGROUND FAULT
RESET
STARTCO
ENGINEERING LTD.
RK-105
60.0
(2.36)
44.5
(1.75)
(0.30)
(0.40)
7.7
10.0
96.0
(3.78)
76.0
(3.00)
(0.875)
22.25
28.58
(1.125)
1.25"
CONDUIT
KNOCKOUT
1.70" DIA
3.8 (0.15)
DIA
MOUNTING DETAIL
SIDE VIEW
30.0
(1.18)
25.0
(0.98)
CI/RI
+
GI
SW
OUTLINE
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FIGURE 7. RK-105 Remote Indication-and-Reset Assembly.

Startco Engineering Ltd. Page 8
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. NEMA 1.
FRONT VIEW
GROUND CHECKGROUND CHECK
GROUND FAULTGROUND FAULT
STARTCO
ENGINEERING LTD.
RK-105I
60.0
(2.36)
44.5
(1.75)
(0.30)
(0.40)
7.7
10.0
96.0
(3.78)
76.0
(3.00)
(0.875)
22.25
28.58
(1.125)
1.25"
CONDUIT
KNOCKOUT
1.70" DIA
3.8 (0.15)
DIA
MOUNTING DETAIL
SIDE VIEW
30.0
(1.18)
25.0
(0.98)
CI/RI
+
GI
OUTLINE
FIGURE 8. RK-105I Remote Indication Assembly.
60.2
31.0
47.5
21.0
(2.37)
(1.22)
(1.87)
(0.83)
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
SW CI/GI +
GI/RI
TB1
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.
SIDE VIEW
RK-13 SHOWN MOUNTED ON SE-105
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
FIGURE 9. RK-13 Relay Interface Module.

Startco Engineering Ltd. Page 9
SE-105 Ground-Fault Ground-Check Monitor Rev. 8
Pub. SE-105-M, November 24, 2005.
FIGURE 10. PPI-600V Parallel-Path Isolator.

Startco Engineering Ltd. Page 10
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
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 HOUSINGS MUST BE
ISOLATED FROM EARTH TO PREVENT PARALLEL GROUND PATHS.
OUTGOING
OUTGOING
GROUND CHECK
GROUND
GC
G
PPI-600VCHASSIS GROUND BUS
CABLE
GROUND
G
GROUND
CHECK
GC
GROUND CHECK MONITOR
SE-105, SE-107, SE-134, OR SE-135
INCOMING
GROUND
FIGURE 11. PPI-600V Typical Installation.

Startco Engineering Ltd. Page 11
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
5. TECHNICAL SPECIFICATIONS
Supply:
ac ........................................ 120 or 240 Vac (+10,
-45%), 50/60 Hz, 10 VA
ac/dc ................................... 120 Vdc (+40, -8%), 5W
120 Vac (+10, -29%),
47 to 440 Hz, 5 VA
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
Storage Temperature .......... -55 to 80°C
Humidity ............................ 85% Non-Condensing
Ground-Fault Circuit:
CT Ratio............................. 200:5
CT Input Burden ................ 0.02 Ω
Trip Level (1)....................... 0.5, 2.0, or 4.0 A
Frequency Response .......... 25 to 400 Hz,
25 to 110 Hz with
Option H
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 Ω
2 A Trip Level............. 5 Ω
4 A Trip Level............. 5 Ω
Trip-Time Accuracy........... 10%
Operating Mode ................. Latching
(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.
Ground-Check Circuit:
Open-Circuit Voltage......... 12 Vdc
Output Impedance .............. 240 Ω
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............... Bussman MDA-1/2,
MDL-1/2 or
Littelfuse 313.500
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 .. 40 ± 10 Ω
Operating 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 .............. Bussman MSL-4 or
Littelfuse 313.004
Operating Mode ................. UV (Undervoltage/Fail-
Safe) or SH (Shunt
Trip/Non-Fail-Safe)
Remote Indication:
+......................................... 12 Vdc
GI/CI.................................. Current Sink,
560 ΩInternal
Optional RK-13 Module:
Contact Ratings..................... 100 mA, 120 Vac
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
Certification .............................. CSA, Canada and USA
LR 53428
USC
R
Australia

Startco Engineering Ltd. Page 12
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
6. ORDERING INFORMATION
SE-105
120-Vac Supply
E 240-Vac Supply
D 120-Vac/dc Supply
(2) L Latching Ground-Check Trip
H Harmonic Filtering
Each SE-105 is supplied with a 1N5339B termination device.
Option List
(1)
(1)
2
List options required in order shown above.
Standard, leave blank.
()
Ground-Fault CT’s:
CT200 ................................ 56 mm (2.2″) Window
CT200L .............................. 89 mm (3.5″) Window
Ground-Check Termination:
1N5339B ............................ 5-W Axial Lead
1N4553B ............................ 50-W Stud Mount
SE-TA6 .............................. 50-W Assembly
SE-TA6A ........................... SE-134C Termination
Assembly
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.
Startco Engineering Ltd. will (at Startco’s option)
repair, replace, or refund the original purchase price of an
SE-105 that is determined by Startco to be defective if it
is returned to the Startco 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. Startco Engineering Ltd. does not warrant products
repaired or modified by non-Startco Engineering Ltd.
personnel.
Startco Engineering Ltd. is not liable for contingent or
consequential damages; for expenses sustained as a result
of incorrect application, incorrect adjustment, or a
malfunction; or for expenses resulting from the use of, or
inability to use, the product.

Startco Engineering Ltd. Page 13
SE-105 Ground-Fault Ground-Check Monitor Rev. 9
Pub. SE-105-M, November 24, 2005.
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. 12a
shows a test circuit using a Startco 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. 12b shows a test circuit using a
Startco 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.
SE-400
SE-105
RMT1
REMOTE
TEST 9
8
1
5
3
11 12
RMT2
L
L
N
N
L1
L1
CT1 CT2
OP1 OP2
L2
L2
FROM
POWER
SOURCE
CT200
LOAD
a) USING SE-400
b) USING SE-100T
SE-100T
SE-105
L
L
N
N
L1
L1
CT1 CT2
CLO
L2
L2
FROM
POWER
SOURCE
CT200
LOAD
HI
0.65 A
2.75 A
REMOTE
TEST
RMT
FIGURE 12. Ground-Fault-Test Circuits
TABLE 2. GROUND-FAULT-TEST RECORD
DATE TEST RESULTS
Retain this record for the authority having jurisdiction.