3714 Kinnear Place
Saskatoon, SK
Canada
S7P 0A6
Ph: (306) 373-5505
Fx: (306) 374-2245 www.littelfuse.com/relayscontrols
SE-701 MANUAL
GROUND-FAULT MONITOR
Revision 10-C-072414
Copyright © 2014 by Littelfuse Startco
All rights reserved.
Document Number: PM-1040-EN
Printed in Canada.
SE-701 Ground-Fault Monitor
This page intentionally left blank.
Page i
Rev. 10-C-072414
Page ii
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
TABLE OF CONTENTS
SECTION
LIST OF FIGURES
PAGE
Introduction ......................................................... 1
1.1 General .................................................................. 1
1.2 Current-Sensor Selection ...................................... 1
2
Operation ............................................................. 1
2.1 Configuration-Switch Settings .............................. 1
2.1.1 Relay Operating Mode ............................... 1
2.1.2 Trip Inhibit ................................................. 1
2.1.3 CT Verification .......................................... 1
2.1.4 Filter Selection ........................................... 1
2.1.5 Reset Mode ................................................ 1
2.2 Front-Panel Controls ............................................. 2
2.2.1 Ground-Fault Trip Level............................ 2
2.2.2 Ground-Fault Trip Time ............................ 2
2.2.3 Reset .......................................................... 2
2.2.4 Test ............................................................ 2
2.3 Front-Panel Indication .......................................... 2
2.3.1 Power ......................................................... 2
2.3.2 Trip ............................................................ 2
2.3.3 Trip Inhibit ................................................. 2
2.4 Analog Output....................................................... 2
2.5 Self Diagnostics .................................................... 2
3
Installation ........................................................... 3
4
SE-701 Compatibility.......................................... 6
5
Technical Specifications ................................... 14
6
Ordering Information ....................................... 16
7
Warranty ........................................................... 17
8
Ground-Fault Performance Test ..................... 18
Appendix A SE-701 Revision History......................... 20
1
FIGURE
1
2
3
4
5
6
7
8
9
10
11
12
PAGE
SE-701 Outline and Mounting Details ...................4
Typical Connection Diagrams................................5
Typical Three-Phase-Starter Connection ...............5
EFCT-1 Outline and Mounting Details ..................7
EFCT-2 Outline and Mounting Details ..................8
EFCT-26 and SE-CS30-26
Outline and Mounting Details ..................................9
SE-CS30-70 Current Sensor .................................... 10
SE-CS30-4, -5, and -8 Current Sensors ................... 11
PMA-55 Panel-Mount Adapter ............................12
PMA-60 Panel-Mount Adapter ............................13
PGA-0500 Analog Percent Current Meter ...........14
Ground-Fault-Test Circuits ..................................18
LIST OF TABLES
TABLE
1
2
PAGE
Trip-Features Comparison .....................................6
Ground-Fault-Test Record ...................................19
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-701 Ground-Fault Monitor
This page intentionally left blank.
Page iii
Rev. 10-C-072414
Page 1
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
1. INTRODUCTION
1.1 GENERAL
The SE-701 is a microprocessor-based ground-fault
monitor for resistance-grounded and solidly grounded
systems. It is uniquely suited for use on systems with
significant harmonic content. Its output relay can operate
in the fail-safe or non-fail-safe mode for undervoltage or
shunt-trip applications. The SE-701 has one output relay
with isolated normally open and normally closed contacts
for use in independent control circuits. Additional
features include LED trip, power, and inhibit indication,
autoreset or latching trips with front-panel and remote
reset, trip memory, test button, self diagnostics, 0- to 5-V
analog output, inputs for ground-fault current sensors, CT
verification for EFCT-series current sensors, digital
selector switches, switch-selectable algorithms for fixedfrequency or variable-frequency applications, and an
inhibit that can be enabled to prevent the output relay
from operating during a high-current ground fault.
Ground-fault current is sensed by a current transformer.
Core-balance zero sequence current sensors (CT's) are most
commonly used. Bus bar or toroid style CT's can also be
used on the neutral to ground connection. See Fig. 2 in
Technical Note CT-08 available at www.littelfuse.com. The
trip level of the ground-fault circuit is switch selectable in
1% increments from 1 to 99% of the CT rating.
1.2 CURRENT-SENSOR SELECTION
An SE-701 has inputs for 1-, 5-A, and 50-mA-secondary
CT’s. Choose a CT that provides the required ground-faulttrip range.
For ground-fault detection, the ground-fault trip level
must be substantially below the prospective ground-fault
current. In a solidly grounded system, prospective groundfault current is similar to phase-fault current. In a resistancegrounded system, prospective ground-fault current is
defined by the neutral-grounding-resistor let-through-current
rating.
In a solidly grounded system, protection against arcing
ground faults requires a ground-fault CT that will detect
low-level fault current but not saturate up to the operating
value of the system overcurrent protection. In general,
immunity to saturation is proportional to CT mass.
To eliminate nuisance tripping, surge current must not
saturate the CT.
For low-level ground-fault protection use an EFCT-1,
EFCT-2, or EFCT-26 earth-fault CT with a 5-A-primary
rating. However, protection at this level might not be
possible because of high surge current or prospective
ground-fault current.
For CT-selection assistance, see Technical Note CT-01
available at www.littelfuse.com/relayscontrols.
2. OPERATION
2.1 CONFIGURATION-SWITCH SETTINGS
See Fig. 1.
2.1.1 RELAY OPERATING MODE
Switch 1 is used to set the operating mode of the output
relay. In the fail-safe mode, the output relay energizes
when the ground-fault circuit is not tripped. In the failsafe mode, non-volatile memory retains the trip status of
the SE-701. If tripped, and the supply voltage is cycled,
the SE-701 will remain tripped, with the trip relay
de-energized and the TRIP LED on, until reset.
In the non-fail-safe mode, the output relay energizes
when a ground-fault trip occurs. In the non-fail-safe
mode, trip status is not retained in non-volatile memory.
2.1.2 TRIP INHIBIT
Switch 2 is used to select Class I or Class II operation.
In the OFF position, high-current trip inhibit is off for
Class I operation. In the ON position, high-current trip
inhibit is on for Class II operation. If high-current trip
inhibit is on and ground-fault current escalates above
eleven times the CT-primary rating before the groundfault circuit trips, the output relay will not operate until
ground-fault current falls below eight times the CTprimary rating. This feature allows overcurrent protection
to operate in applications where the ground-fault current
can be larger than the interrupting capacity of the device
tripped by the SE-701.
2.1.3 CT VERIFICATION
Switch 3 is used to enable CT verification with an
EFCT-series CT. In the ON position, a trip will occur if
the CT is disconnected. Switch 3 must be in the OFF
position when an EFCT-series CT is not used and must be
in the ON position when an EFCT is used.
2.1.4 FILTER SELECTION
Switch 4 is used to select the filtering algorithm for a
fixed-frequency (50/60 Hz) or variable-frequency
application. The FIXED FREQUENCY setting uses a
DFT filter that allows lower trip levels to be used by
rejecting harmonics that can cause nuisance tripping.
The VARIABLE FREQUENCY setting uses a peakdetection algorithm with a wider bandwidth for fault
detection in variable-frequency drive applications.
2.1.5 RESET MODE
Switch 5 is used to select autoreset or latching trips.
See Section 2.2.3.
SE-701 Ground-Fault Monitor
2.2 FRONT-PANEL CONTROLS
2.2.1 GROUND-FAULT TRIP LEVEL
The % CT PRIMARY selector switches are used to set
the ground-fault trip level as a percentage of the
CT-primary rating.
In tripping systems, a ground-fault trip level of 10 to
20% of the prospective ground-fault current is often used.
In alarm-only systems, a value of 50% of the prospective
ground-fault current is often used. To avoid sympathetic
tripping, the trip level must be above the charging current
of the protected feeder.
A 0% selection provides protection at 1%.
2.2.2 GROUND-FAULT TRIP TIME
The SE-701 has a definite-time trip characteristic. The
TIME (s) selector switch is used to set the ground-fault
trip delay time for coordination with upstream and
downstream ground-fault devices. Coordination requires
the same trip level for all ground-fault devices in a system
and the trip time to progressively increase upstream. The
amount of equipment removed from the system will be a
minimum if the first ground-fault device to operate is the
one immediately upstream from the fault.
2.2.3 RESET
If the Reset Mode switch is in the LATCHING
position, a trip remains latched until the RESET button is
pressed or the remote-reset terminals are momentarily
connected. In the non-fail-safe mode, cycling the supply
voltage will also reset the SE-701.
If the Reset Mode switch is in the AUTORESET
position, a trip will reset when the fault is removed.
The reset circuit responds only to a momentary closure
so that a jammed or shorted button will not prevent a trip.
The front-panel RESET button is inoperative when the
remote-reset terminals (6 and 7) are connected.
2.2.4 TEST
The TEST button is used to test the ground-fault
circuit, the indication, and the output relay. When the
TEST button is pressed for one second, a test signal is
applied to the ground-fault-detection circuit, the circuit
will trip, the TRIP LED will light, and the output relay
will operate. If high-current inhibit has been selected, the
INHB LED will light.
2.3 FRONT-PANEL INDICATION
2.3.1 POWER
The green LED labelled PWR indicates the presence of
supply voltage.
2.3.2 TRIP
The red LED labelled TRIP indicates a trip. A solid
red LED indicates a ground-fault trip. A flashing LED
Page 2
Rev. 10-C-072414
indicates a trip initiated by a CT fault. Two fast flashes
indicate a diagnostic trip. See Section 2.5.
2.3.3 TRIP INHIBIT
The yellow LED labelled INHB indicates that outputrelay operation was inhibited during a high-current
ground fault. See Section 2.1.2. When a ground-fault
trip occurs during a high-current ground fault, both the
TRIP and INHB LED’s will be ON. Inhibit indication is
reset when the ground-fault trip is reset. Inhibit operation
and indication will not respond if the trip-inhibit switch is
in the OFF position.
2.4 ANALOG OUTPUT
The non-isolated, 0- to 5-V analog output indicates
ground-fault current sensed by the ground-fault CT. The
output is 5 V when ground-fault current is 100% of the
CT-primary rating. Use a PGA-0500 Analog Percent
Current Meter with the PGA-05CV Voltage Converter to
indicate ground-fault current. See Figs. 2, 3, and 11.
2.5 SELF DIAGNOSTICS
A diagnostic trip is indicated by two fast flashes of the
TRIP LED. It can be caused by a diagnostic problem
detected by the watchdog timer or from an incorrect
reading from non-volatile memory. Press RESET or
cycle supply voltage. If the problem persists, contact
Littelfuse Startco.
SE-701 Ground-Fault Monitor
3. INSTALLATION
Mounting, terminal-block connections, and
NOTE:
wiring must conform to applicable local electrical codes.
Check all applicable codes prior to installation.
An SE-701 can be surface or DIN-rail-mounted. See
Fig. 1. Panel mounting requires a PMA-55 or PMA-60
Panel-Mount Adapter. See Figs. 9 and 10.
Use terminal 11 (L1) as the line terminal on ac supply
systems or the positive terminal on dc supply systems.
Use Terminal 10 (L2/N) as the neutral terminal on ac
systems or the negative terminal on dc systems. Connect
terminal 9 ( ) to ground.
Pass the phase conductors through the CT
windowfor 4-wire and single-phase systems also pass
the neutral conductor through the CT window, as shown
in Figs. 2 and 3. Do not pass ground conductors through
the CT window. In applications that require shields or
drain wires to pass through the CT window, return them
through the CT window before connecting them to
ground. If a ground-fault CT with a 5-A secondary is
used, connect it to terminals 2 and 3 (terminals 1 and 3
with a 1-A secondary) and ground terminal 3. If an
EFCT-x is used, connect it to terminals 4 and 5, connect
the shield to terminal 5, and ground terminal 5. Set
configuration switch 3 to ON. Remove the connection to
terminal 9 for dielectric-strength testing—all inputs and
outputs have ANSI/IEEE C37.90 surge-protection circuits
that conduct above 300 Vac. See Figs. 4, 5, and 6 for
EFCT-series dimensional drawings and Figs. 6, 7, and 8
for the SE-CS30-series current sensors.
Page 3
Rev. 10-C-072414
Page 4
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
55.0
(2.17)
37.5
(1.48)
8.7
(0.34)
CONFIGURATION
SWITCHES
AUTORESET
FILTER SELECTION
FIXED
FREQUENCY
4
CT VERIFICATION
3
OFF
OFF
ON
1
RELAY OPERATING MODE
FAIL-SAFE
FILTER SELECTION
FIXED
FREQUENCY
CT VERIFICATION
OFF
TRIP INHIBIT
OFF
5
4
3
2
RELAY OPERATING MODE
FAIL-SAFE
1
VARIABLE
FREQUENCY
2
TRIP INHIBIT
LATCHING
NOTE 2
AUTORESET
VARIABLE
FREQUENCY
ON
ON
61.2
(2.41)
75.0
(2.95)
CONFIGURATION
SWITCHES
5
RESET MODE
LATCHING
RESET MODE
NON-FAIL-SAFE
ON
NON-FAIL-SAFE
S1 S2 RS
1
4
1A/5A CT
2
RESET ANALOG
OUTPUT
EFCT
3
5
6
7
MOUNTING DETAIL
8
118.0 (NOTE 3)
(4.65)
110.0
(4.33)
TOP
55.0
(2.17)
LITTELFUSE STARTCO
GROUND-FAULT MONITOR
5
INHB
6
7
8
9
4
3
2
1
5
0
0
% CT PRIMARY
SE-701
TRIP
6
7
8
9
.40
.30
.20
.10
TEST
.50
1.0
1.5
2.0
2.5
.05
TIME (s)
75.0
(2.95)
PWR
4
3
2
1
6.3
(0.25)
RESET
FRONT
SIDE
NOTES:
9 10 11 12 13 14 15 16
L2 L1
N
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M4 OR 8-32.
3. OVERALL DIMENSION WHEN MOUNTED ON
DINEN50022 35 mm x 7.5 mm TOP-HAT RAIL.
4. ADJUSTMENT KNOBS ARE REMOVABLE.
BOTTOM
FIGURE 1. SE-701 Outline and Mounting Details.
5. CONFIGURATION SWITCHES SHOWN
IN DEFAULT POSITION.
6.9
1A 5A C
(0.27)
NOTE 5
Page 5
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
XXX:5
ØA
XXX:5
ØA
ØB
ØB
ØC
ØC
XXX:5
L
N
N
N
14
N
14
2
3
1
L
11
3
2
5A
C
4
5
S1
S2
L2
N
L1
15
ISOLATED CONTACTS
REMOTE RESET
6
SE-701
1-PHASE
CONNECTION
3-PHASE, 4-WIRE
CONNECTION
10
14
13
3
SE-701
N
1A
2
XXX:1 OR EFCT-X OR
CS30-X
16
SE-701
RS
RESET
7
1
LEAKAGE
ANALOG
OUTPUT
8
I
PGA-05CV PGA-0500
9
PWR
Y
INHB
R
TRIP
NOTE:
1. RELAY CONTACTS SHOWN WITH SE-701
DE-ENERGIZED.
FIGURE 2. Typical Connection Diagrams.
XXX:5
ØB
ØC
L
N
1
3
2
1A
5A
C
4
5
S1
S2
14
13
15
11
O/L
1M
1M
SE-701
L2
N
10
RS
RESET
NOTES:
7
LEAKAGE
I
START
16
REMOTE RESET
6
STOP
ISOLATED CONTACTS
L1
ANALOG
OUTPUT
8
PGA-05CV PGA-0500
9
1. RELAY CONTACTS SHOWN WITH SE-701
DE-ENERGIZED.
INDICATION
G
PWR
Y
INHB
R
TRIP
C
4
5
S1
S2
Technical Note CT-01
provides additional
information on CT selection.
3-PHASE, 3-WIRE CONNECTION
ØA
3
SE-701
INDICATION
G
2
1A 5A
FIGURE 3. Typical Three-Phase-Starter Connection.
ALTERNATE CT
CONNECTIONS
Page 6
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
4. SE-701 COMPATIBILITY
The current SE-701 has been enhanced with the
addition of non-volatile trip memory for the fail-safe
relay operating mode. Prior to hardware revision 07, a
mechanical flag was used instead of non-volatile trip
memory. The current revision of the SE-701 can
directly replace previous revision 00 to 06 units.
Beginning with hardware revision 09, CT verification
must be enabled when used with an EFCT-series
earth-fault CT. Previous-revision SE-701 units used
with EFCT-series CT’s can operate with CT
verification enabled or disabled. See Section 2.1.3.
The hardware-revision number is listed on the SE-701
model/serial-number label affixed to the SE-701
enclosure. The SE-701 generations are compared in
Table 1.
The SE-701 was previously available with SE-701-01
120-Vac and SE-701-02 240-Vac supply-voltage
options. These have been discontinued. An SE-701-0U
120/240 Vac/Vdc unit can directly replace an SE-701-01
or SE-701-02.
TABLE 1. TRIP-FEATURES COMPARISON
HARDWARE REVISION
LED trip indication
Mechanical flag trip indication
Non-volatile trip memory
Device state after supply voltage
cycled when tripped (ground-fault
removed)
CT Detection must be ON for EFCT
Fail-safe
Non-fail-safe
00 to 06
Yes
Yes
No
Trip LED: Off
Trip relay: Energized
Trip flag: Red
Trip LED: Off
Trip relay: De-energized
Trip flag: Red
No
07
09
Yes
No
Yes
Trip LED: On
Trip relay: De-energized
Trip LED: Off
Trip relay: De-energized
No
Yes
Page 7
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M4 OR 8-32.
3. PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED.
4. RoHS COMPLIANT.
5. EN 60044-1 COMPLIANT.
121.0
(4.76)
121.0
(4.76)
20.5
(0.81)
56.0
(2.21)
46.0
(1.81)
30.0
(1.18)
80.0
(3.15)
NOTE 2
M5 SCREWS
TOP
MOUNTING DETAIL
25.0
(0.98)
30.0
(1.18)
EFCT-1 EARTH FA ULT CT
600 V CLASS, INSULATION CLASS A
R
R
LR 53428
5.0 (0.20) Ø
RECESSED FOR
8-mm HEX NUT
1.0 (0.04) DEEP
22.0
(0.87)
EFCT - 1FC
FLUX
CONDITIONER
(OPTIONAL)
.0
82 23)
.
3
(
69.
(2.7 8
5)
126.0
(4.96)
US
(5.43)
138.0 MAX
C
5.5
(0.22)
110.0
(4.33)
FRONT
FIGURE 4. EFCT-1 Outline and Mounting Details.
5.5
(0.22)
56.0
(2.21)
SIDE
Page 8
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M5 OR 10-32.
3. RoHS COMPLIANT.
4. EN 60044-1 COMPLIANT.
215.0
(8.46)
26.5
(1.04)
52.3
(2.06)
P
S1 2S2
P1
31.0
(1.22)
64.0
(2.52)
215.0
(8.46)
162.0
(6.38)
M5 OR 10-32 TAP
M5 SCREWS
TOP
MOUNTING DETAIL
31.0
(1.22)
25.0
(0.98)
EFCT-2 EARTH FAULT CT
600 V CLASS, INSULATION CLASS A
R
R
LR 53428
139.7
(5.50)
FLUX CONDITIONER
(INCLUDED)
BONDING
SCREW
215.0
(8.46)
US
5.0 (0.20) DIA
60.0
(2.36)
236 MAX
(9.29)
C
8.5
(0.33)
198.0
(7.80)
FRONT
FIGURE 5. EFCT-2 Outline and Mounting Details.
8.5
(0.33)
SIDE
Page 9
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
68.0
(2.68)
34.0
(1.34)
68.0
(2.68)
M4 OR 8-32 TAP
26.5
(1.04)
52.5
(2.07)
42.6
(1.68)
17.0
(0.67)
MOUNTING DETAIL
TOP
(0.43)
110.0 MAX
M5 SCREWS
25.0
(0.98)
26.5
(1.04)
SE-CS30-26
CURRENT SENSOR
R
R
LR 53428
US
4.0 (0.16) Ø
0
.
26
RECESSED FOR
7-mm HEX NUT
3.0 (0.12) DEEP
2)
7.0
.0
(1
58.0
(2.28)
(0.87)
34.0
(1.34)
72.0
(2.83)
C
5.0
(0.20)
5.0
(0.20)
52.5
(2.07)
FRONT
SIDE
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED (DETAIL ‘A’).
MOUNTING FOOT
INSTALLA TION
TOOL
3. MOUNTING SCREWS: M4 OR 8-32.
4. RoHS COMPLIANT.
5. EN 60044-1 COMPLIANT.
DETAIL ‘A’
6. SE-CS30-26 SHOWN.
FIGURE 6. EFCT-26 and SE-CS30-26 Outline and Mounting Details.
Page 10
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
121.0
(4.76)
121.0
(4.76)
20.5
80.0
(3.15)
56.0
(2.21)
46.0
(1.81)
30.0
(1.18)
(0.81)
NOTE 3
M5 SCREWS
TOP
MOUNTING DETAIL
25.0
(0.98)
(1.18)
30.0
SE-CS30-70
CURRENT SENSOR
R
LR 53428
R
22.0
Ø 5.0 (0.20)
RECESSED FOR
8-mm HEX NUT
1.0 (0.04) DEEP
5.5
110.0
5.5
(0.22)
(4.33)
(0.22)
56.0
(2.21)
SIDE
FRONT
MOUNTING FOOT
INSTALLATION
TOOL
126.0
69.
8
(2.7
5)
(4.96)
US
(0.87)
(5.43)
138.0 MAX
C
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. PRESS MOUNTING FEET IN PLACE USING
INSTALLATION TOOL PROVIDED (DETAIL ‘A’).
3. MOUNTING SCREWS: M4 OR 8-32.
DETAIL ‘A’
FIGURE 7. SE-CS30-70 Current Sensor.
4. RoHS COMPLIANT.
5. EN 60044-1 COMPLIANT.
Page 11
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
C
D
H
G
J
14.0
(0.55)
72.0
(2.83)
F
TOP (COVER REMOVED)
MOUNTING DETAIL
NOTES:
SE-CS30-8
OUTLINE
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M5 OR 10-32.
3. RoHS COMPLIANT.
B
A
4. CE COMPLIANT.
DIMENSIONS
I
L
D
C
BOTTOM
FIGURE 8. SE-CS30-4, -5, and -8 Current Sensors.
J
K
G
FRONT
1.7
(0.07)
E
FLUX
CONDITIONER
SE-CS30-4
SE-CS30-5
SE-CS30-8
A
95.0 (3.74)
130.0 (5.12)
200.0 (7.87)
B
175.0 (6.89) 218.0 (8.78) 309.0 (12.17)
C
158.0 (6.22) 203.0 (7.99) 290.5 (11.44)
D
141.0 (5.55)
178.0 (7.01) 267.5 (10.50)
E
82.0 (3.22)
103.5 (4.07) 150.0 (5.90)
F
32.0 (1.26)
32.0 (1.26)
34.0 (1.34)
G
17.5 (0.69)
11.0 (0.43)
11.0 (0.43)
H
15.0 (0.59)
13.3 (0.52)
13.3 (0.52)
I
33.0 (1.30)
34.0 (1.34)
43.0 (1.69)
J
9.0 (0.35)
11.0 (0.43)
11.5 (0.45)
K
40.0 (1.57)
40.0 (1.57)
50.0 (1.97)
L
5.3 (0.21)
7.0 (0.28)
7.0 (0.28)
Page 12
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
110.0
(4.33)
85.0
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
(3.35)
5
6
7
8
9
4
3
2
1
5
0
0
% CT PRIMARY
SE-701
TRIP
6
7
8
9
.40
.30
.20
.10
.50
1.0
1.5
2.0
2.5
.05
TIME (s)
TEST
75.0
4
3
2
1
INHB
6-32
RESET
BRACKET
6.0
(0.24)
2.0 (0.08) RAD
MAXIMUM
55.0 (2.20) WIDE
MONITOR
SIDE VIEW
INSTALLATION INSTRUCTIONS:
1. REMOVE BEZEL AND LATCH MONITOR ON
BRACKET.
2. INSERT BRACKET THROUGH FRONT OF PANEL
CUTOUT AND SECURE WITH FLAT WASHERS AND
LOCKNUTS PROVIDED.
4.0 (0.16) DIA
8.7 (0.34) DIA
4.3 (0.17) RAD
60.0
(2.36)
79.0
(3.11)
42.5
(1.67)
30.0
(1.18)
85.0
(3.35)
72.0
(2.83)
60.0
(2.36)
BEZEL
9.5
(0.37)
FRONT VIEW
6.0
(0.24)
(2.95)
PWR
85.0
(3.35)
42.5
(1.67)
6-32
LITTELFUSE STARTCO
GROUND-FAULT MONITOR
ALTERNATE
CONFIGURATIONS
3. CONNECT WIRING TO TERMINALS.
4. INSTALL BEZEL USING 6-32 x 0.31 SCREWS
PROVIDED.
NOTE:
9.5
(0.37)
1. DIMENSIONS IN MILLIMETRES (INCHES).
PANEL CUTOUT DETAIL
FIGURE 9. PMA-55 Panel-Mount Adapter.
Page 13
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
116.0
(4.57)
99.0
(3.90)
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
5
6
7
8
9
4
3
2
1
5
0
0
% CT PRIMARY
SE-701
TRIP
6
7
8
9
.40
.30
.20
.10
TEST
.50
1.0
1.5
2.0
2.5
.05
TIME (s)
75.0
4
3
2
1
INHB
M4
RESET
BRACKET
TRANSPARENT
COVER (NOTE 2)
FRONT VIEW
6.0
(0.24)
2.0 (0.08) RAD
MAXIMUM
1. WITH COVER REMOVED LATCH MONITOR TO
BRACKET.
2. INSERT BRACKET THROUGH FRONT OF PANEL
CUTOUT AND SECURE WITH FLAT WASHERS
AND LOCKNUTS PROVIDED.
3. CONNECT WIRING TO TERMINALS.
4.5 (0.18) DIA
8.7 (0.34) DIA
4.3 (0.17) RAD
60.0
(2.36)
79.0
(3.11)
44.0
(1.73)
30.0
(1.18)
SIDE VIEW
INSTALLATION INSTRUCTIONS:
9.5
(0.37)
6.0
(0.24)
99.0
(3.90)
72.0
(2.83)
60.0
(2.36)
55.0 (2.20) WIDE
MONITOR
ALTERNATE
CONFIGURATIONS
4. ATTACH COVER USING SECURITY SCREWS
OR THUMB SCREWS PROVIDED.
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
9.5
(0.37)
2. MEETS NEMA3, IP53.
PANEL CUTOUT DETAIL
FIGURE 10. PMA-60 Panel-Mount Adapter.
3. INCLUDES TWO TR20 TAMPER-RESISTANT
TORX SCREWS (M4-0.7x16 mm, INSTALLED)
AND TWO THUMB SCREWS.
(2.95)
PWR
88.0
(3.46)
44.0
(1.73)
M4
LITTELFUSE STARTCO
GROUND-FAULT MONITOR
Page 14
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
67.5
(2.657)
67.5
(2.657)
48.0
(1.890)
66.0
(2.598)
R1.25(0.049)
MAXIMUM
NOTES:
1. CONVERSION KIT FOR 0-5 V ANALOG
OUTPUT. SEE PGA-0500 DOCUMENTATION.
2. DIMENSIONS IN MILLIMETRES (INCHES).
TOP
%
MOUNTING CUTOUT
NOTE 1
100
®
20
65.0
(2.559)
60
40
71.0
(2.795)
80
0
PGA-0500
ANALOG % CURRENT METER
FRONT
SIDE
REAR
FIGURE 11. PGA-0500 Analog Percent Current Meter.
5. TECHNICAL SPECIFICATIONS
Supply:
0U Option ..............................5 VA, 120 to 240 Vac,
(+20, -55%) 50/60 Hz;
2 W, 100 to 240 Vdc,
(+20, -25%)
0D Option ..............................2 W, 12 to 30 Vdc,
(+20, -25%)
0T Option ...............................2 W, 40 to 55 Vdc,
(+20, -25%)
03 Option ...............................2.5 VA, 24 Vac,
(+15, -40%), 50/60 Hz
Trip-Level Range.........................1 to 99% CT-Primary
Rating in 1% increments
(50 mA to 4.95 A with
EFCT-x)
Trip-Time Settings.......................0.05, 0.10, 0.20, 0.30,
0.40, 0.50, 1.0, 1.5, 2.0,
and 2.5 s
Accuracies (1):
Trip Level (2) .......................... Largest of 5% of setting or:
1-A input:
1% setting ........................ -10, +15 mA
2 - 99% setting ................. 10 mA
5-A and EFCT (4) inputs:
1% setting ........................ -35, +60 mA
2 - 99% setting ................. 35 mA
Trip Time (3) ........................... 5% of setting
(-25, +20 ms minimum)
Trip Inhibit:
Off ......................................... Class I
On ......................................... Class II
Level ................................... 11 x CT-Primary Rating
Input:
Algorithms ............................. DFT or Peak
DFT 3 dB Frequency Resp ... 32 to 86 Hz
Peak 3 dB Frequency Resp ... 20 to 420 Hz
CT ......................................... 1- or 5-A Secondary
Rating, or EFCT-x
CT Detection ...................... Open-Circuit Detection
with EFCT-x
SE-701 Ground-Fault Monitor
Thermal Withstand:
Continuous ......................... 5 x CT-Secondary Rating
1-Second ............................ 80 x CT-Secondary Rating
Burden:
5-A input ............................ < 0.01
1-A input ............................ < 0.05
EFCT input ........................ 2
Analog Output:
Range .................................... 0 to 5 Vdc,
5 V = 100% CT Rating
Output Impedance ................ 220
Reset ..........................................Front-Panel Button and
Remote N.O. Momentary
Contact
Page 15
Rev. 10-C-072414
Environment:
Operating Temperature:
Altitude:
≤ 1,000 m (3,281’) ........ -40 to 60C
(-40 to 140°F)
3,000 m (9,843’) ........... -40 to 55C
(-40 to 131°F)
5,000 m (16,404’) ......... -40 to 50C
(-40 to 122°F)
Storage Temperature ........... -55 to 80C
(-67 to 160°F)
Humidity ................................ 85% Non-Condensing
Altitude................................... 5,000 m (16,404’)
maximum
PWB Conformal Coating............ MIL-1-46058 qualified
UL QMJU2 recognized
Functional Test ............................Front-Panel Button
Output Relay:
Contact Configuration ....... Isolated N.O. and N.C.
Operating Mode ................. Fail-Safe or Non-Fail-Safe
CSA/UL Contact Rating .... 8 A General Use, 250 Vac,
8 A Resistive, 30 Vdc
0.25 HP, 120/240 Vac
Supplemental Contact Ratings:
Carry Current .................. 8 A, maximum
Break:
30 Vdc .......................... 240 W Resistive,
170 W Inductive
(L/R = 7 ms)
120 Vdc ........................ 24 W Resistive,
17 W Inductive (L/R = 7 ms)
ac .................................. 2,000 VA Resistive,
875 VA Inductive
(PF = 0.4)
(Subject to maximums of 8 A and 250 Vac/
30 Vdc or 200 mA at 120 Vdc)
Trip Mode ....................................Latching or Autoreset
Terminals .....................................Wire-clamping,
24 to 12 AWG
(0.2 to 2.5 mm2)
conductors
Dimensions:
Height.................................... 75 mm (3.0”)
Width .................................... 55 mm (2.2”)
Depth ..................................... 113 mm (4.5”)
Shipping Weight ..........................0.45 kg (1 lb)
Surge Withstand .......................... ANSI/IEEE 37.90.1-1989
(Oscillatory and Fast
Transient)
Vibration ...................................... EN60255-21-1 (Vibration,
Shock, and Seismic)
EN60255-21-2 (Shock and
Bump)
EMC Tests:
Verification tested in accordance with EN 50263:2000
Radiated and Conducted
Emissions ........................... CISPR 11:2009,
CISPR 22:2008,
EN55022:2010
Class A
Current Harmonics and
Voltage Fluctuation ............ IEC 61000-3-2 and
IEC 61000-3-3
Class A
Electrostatic Discharge ....... IEC 61000-4-2
± 6 kV contact discharge
(direct and indirect)
± 8 kV air discharge
Radiated RF Immunity ........ IEC 61000-4-3
10 V/m, 80-1000 MHz,
80% AM (1 kHz)
10 V/m, 900 MHz,
200 Hz pulse modulated
Page 16
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
Fast Transient ...................... IEC 61000-4-4
4 kV on AC mains and
I/O lines
Certification ................................. CSA, Canada and USA
R
C
LR 53428
US
UL Listed
Surge Immunity .................. IEC 61000-4-5
Zone B
± 1 kV differential mode
± 2 kV common mode
Australia
Conducted RF Immunity .... IEC 61000-4-6
10 V, 0.15-80 MHz,
80% AM (1 kHz)
N11659
Magnetic Field Immunity ... IEC 61000-4-8
50 Hz and 60 Hz , 30 A/m
and 300 A/m
CE, European Union
Voltage Interruption ........... IEC 61000-4-11,
IEC 61000-4-29,
0% for 5, 10, 20, 50,
100 & 200 ms 3x each
Power Frequency ................ IEC 61000-4-16
Zone A: differential mode
150 Vrms
Zone A: common mode
300 Vrms
1 MHz Burst ....................... IEC 61000-4-18
± 1 kV differential mode
(line-to-line)
± 2.5 kV common mode
RFI Compliance ....................... FCC Part 15, Subpart B,
Class A – Unintentional
Radiators
FCC
Complies to IEC 61010-1:2001 (2nd Edition);
EN 61010-1:2001 (2nd Edition) Safety Requirements
for Electrical Equipment for Measurement, Control,
and Laboratory Use – Part 1.
NOTES:
(1)
Over operating temperature range of -40 to 60°C (-40
to 140°F).
(2)
CT accuracy not included.
(3)
Trip time at 3 x trip-level setting from the first peak.
(4)
For maximum lead resistance of 1 .
6. ORDERING INFORMATION
SE-701-0 Conformal Coating:
Blank – Partial Conformal Coating
CC – Full Conformal Coating
Supply:
3 – 24-Vac Supply
U – Universal 120/240-Vac/Vdc Supply
D – 12/24-Vdc Supply
T – 48-Vdc Supply
EFCT-1 ........................................ Earth-Fault CT,
5-A-primary rating,
82 mm (3.2”) window
EFCT-1FC ................................... Flux Conditioner for
EFCT-1, 70 mm (2.7”)
window
EFCT-2 ........................................ Earth-Fault CT,
with Flux Conditioner,
5-A-primary rating,
139 mm (5.5”) window
EFCT-26 ...................................... Earth-Fault CT,
5-A-primary rating,
26 mm (1”) window
(All EFCT’s include 6 m (19.2’) 22 AWG (0.3 mm2)
shielded cable.)
Page 17
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
SE-CS30-26 .................................Current Sensor,
26.0 mm (1.02”) window
SE-CS30-70 .................................Current Sensor c/w Flux
Conditioner, 69.8 mm
(2.75”) window
SE-CS30-4 ...................................Current Sensor c/w Flux
Conditioner, 95.0 mm
(3.74”) window
SE-CS30-5 ...................................Current Sensor c/w Flux
Conditioner, 130.0 mm
(5.12”) window
SE-CS30-8 ...................................Current Sensor c/w Flux
Conditioner, 200.0 mm
(7.87”) window
5SHT-101-E(1) .............................Current Sensor,
100-A-primary rating,
40 mm (1.6”) window
5SHT-151-E(1) .............................Current Sensor,
150-A-primary rating,
40 mm (1.6”) window
5SHT-500-E(1) .............................Current Sensor,
50-A-primary rating,
40 mm (1.6”) window
7SHT-301-E(1) .............................Current Sensor,
300-A-primary rating,
64 mm (2.5”) window
7SHT-401-E(1) .............................Current Sensor,
400-A-primary rating,
64 mm (2.5”) window
PGA-0500 ....................................Analog Percent Current
Meter (PGA-05CV
included)
PMA-55 .......................................Panel-Mount Adapter,
NEMA 1
PMA-60 .......................................Panel-Mount Adapter,
NEMA 3, IP53.
Includes two TR20
tamper-resistant Torx
screws and two thumb
screws.
PMA-3 .........................................Adapter Plate,
GES/MCGG
PMA-6 .........................................Adapter Plate,
FPL-GFRM
PMA-15 .......................................Adapter Plate, MGFR
SE-EFVC .....................................Voltage Clamp
Consult factory for custom mounting adapters.
NOTES:
(1)
Includes mounting brackets.
7. WARRANTY
The SE-701 Ground-Fault 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-701 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 nonLittelfuse Startco personnel.
Page 18
Rev. 10-C-072414
SE-701 Ground-Fault 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-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:
FROM
POWER
SOURCE
c) Verify that the system is correctly grounded and that
alternate ground paths do not exist that bypass the
current sensor. 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. 12 (a)
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 120% of the SE-701
setting. Fig. 12 (b) 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-sensor 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.
NOTE: Do not inject test current directly into CT-input
terminals 1, 2, 3, 4, and 5.
LOAD
1
2
3
1A 5A C
L
11
N
10
11
a) Evaluate the interconnected system in accordance
with the overall equipment manufacturer’s detailed
instructions.
b) Verify proper location of the ground-fault current
sensor. Ensure the cables pass through the groundfault-current-sensor window. This check can be done
visually with knowledge of the circuit.
The
connection of the current-sensor secondary to the SE701 is not polarity sensitive.
XXX:5
L
N
3
5
L1
L2/N
8
9
5
S1 S2
SE-701
OP1
OP2
L2
SE-400
RMT1
RMT2
b) USING SE-100T
XXX:5
FROM
POWER
SOURCE
LOAD
1
2
3
1A 5A C
REMOTE
TEST
12
L1
1
REMOTE
TEST
4
L
11
N
10
L1
L2/N
4
5
S1 S2
SE-701
C
LO
L
L1
HI
N
L2
SE-100T
RMT
FIGURE 12. Ground-Fault-Test Circuits.
0.65 A
2.75 A
SE-701 Ground-Fault Monitor
TABLE 2. GROUND-FAULT-TEST RECORD
DATE
TEST RESULTS
Retain this record for the authority having jurisdiction.
Page 19
Rev. 10-C-072414
Page 20
Rev. 10-C-072414
SE-701 Ground-Fault Monitor
MANUAL
RELEASE DATE
APPENDIX A
SE-701 REVISION HISTORY
MANUAL
PRODUCT REVISION
REVISION
(REVISION NUMBER ON PRODUCT LABEL)
July 24, 2014
10-C-072414
October 21, 2013
10-B-102113
April 12, 2013
10-A-041213
MANUAL REVISION HISTORY
REVISION 10-C-072414
SECTION 4
Fig. 8 updated.
SECTION 5
Update to include altitude and vibration specifications.
APPENDIX A
Revision history updated.
REVISION 10-B-102113
SECTION 4
Fig. 6 updated to include EFCT-26 and SE-CS30-26.
SECTION 5
Conformal coating specifications added.
FCC certification mark added.
SECTION 6
Updated ordering information with full conformal coating (CC) option.
APPENDIX A
Revision history updated.
REVISION 10-A-041213
SECTION 3
Figs. 2 and 3 updated to include PGA-05CV.
SECTION 4
Figs. 7, 8, and 9 added.
SECTION 5
Environment section updated to include Fahrenheit temperature range.
SECTION 6
Additional current sensors added to ordering information.
APPENDIX A
Revision history added.
PRODUCT REVISION HISTORY
REVISION 09
Firmware: Improved operation of front-panel test button.
09
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