5SHT-151-E - LITTELFUSE - Product.Network

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

Document Number: PM-1040-EN

Printed in Canada.

Page i

SE-701 Ground-Fault Monitor Rev . 10-C-072414

This page intentionally left blank.

Page ii

SE-701 Ground-Fault Monitor Rev . 10-C-072414

TABLE OF CONTENTS

SECTION PAGE

1 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

LIST OF FIGURES

FIGURE PAGE

1 SE-701 Outline and Mounting Details ...................4

2 Typical Connection Diagrams ................................5

3 Typical Three-Phase-Starter Connection ...............5

4 EFCT-1 Outline and Mounting Details ..................7

5 EFCT-2 Outline and Mounting Details ..................8

6 EFCT-26 and SE-CS30-26

Outline and Mounting Details ..................................9

7 SE-CS30-70 Current Sensor .................................... 10

8 SE-CS30-4, -5, and -8 Current Sensors ................... 11

9 PMA-55 Panel-Mount Adapter ............................12

10 PMA-60 Panel-Mount Adapter ............................13

11 PGA-0500 Analog Percent Current Meter ...........14

12 Ground-Fault-Test Circuits ..................................18

LIST OF TABLES

TABLE PAGE

1 Trip-Features Comparison .....................................6

2 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.

Page iii

SE-701 Ground-Fault Monitor Rev . 10-C-072414

This page intentionally left blank.

Page 1

SE-701 Ground-Fault Monitor Rev . 10-C-072414

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 fixed-

frequency 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-fault-

trip 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 ground-

fault current is similar to phase-fault current. In a resistance-

grounded 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 fail-

safe 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 ground-

fault circuit trips, the output relay will not operate until

ground-fault current falls below eight times the CT-

primary 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 peak-

detection 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.

Page 2

SE-701 Ground-Fault Monitor Rev . 10-C-072414

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

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 output-

relay 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.

Page 3

SE-701 Ground-Fault Monitor Rev . 10-C-072414

3. INSTALLATION

NOTE: Mounting, terminal-block connections, and

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

windowfor 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 4

SE-701 Ground-Fault Monitor Rev . 10-C-072414

9101112131415

NL1

1 2345678

S1 S2 RS

EFCT

ANALOG

OUTPUT

RESET

1A/5A CT

1A 5A C

.50

.05

.40

.30

.20

.10

1.0

1.5

2.0

2.5

% CT PRIMARY TIME (s)

SE-701

GROUND-FAULT MONITOR

TEST RESET

PWR INHB TRIP

LITTELFUSE STARTCO

55.0

(2.17)

37.5

(1.48)

8.7

(0.34)

CONFIGURATION

SWITCHES

RESET MODE

FILTER SELECTION

CT VERIFICATION

TRIP INHIBIT

RELAY OPERATING MODE

LATCHING

FIXED

FREQUENCY

OFF

FAIL-SAFE

AUTORESET

VARIABLE

FREQUENCY

NON-FAIL-SAFE

NOTE 5

NOTE 2

61.2

(2.41)

75.0

(2.95)

6.9

(0.27)

MOUNTING DETAIL

TOP

55.0

(2.17)

75.0

(2.95)

FRONT

BOTTOM

118.0 (NOTE 3)

(4.65)

110.0

(4.33) 6.3

(0.25)

NOTES:

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.

5. CONFIGURATION SWITCHES SHOWN

IN DEFAULT POSITION.

SIDE

OFF ON

FAIL-SAFE

LATCHING

NON-FAIL-SAFE

AUTORESET

CONFIGURATION

SWITCHES

RESET MODE

CT VERIFICATION

RELAY OPERATING MODE

FIXED

FREQUENCY

VARIABLE

FREQUENCY

FILTER SELECTION

OFF ON

TRIP INHIBIT

FIGURE 1. SE-701 Outline and Mounting Details.

Page 5

SE-701 Ground-Fault Monitor Rev . 10-C-072414

INDICATION

PWR

INHB

TRIP

NOTE:

1. RELAY CONTACTS SHOWN WITH SE-701

DE-ENERGIZED.

Ø B

Ø A

Ø C

XXX:5

Ø B

Ø A

Ø C

XXX:5 L

XXX:5

14 2 3

SE-701

12 345

1 A 5 A C S1 S2

11 10

13 14

1615

ISOLATED CONTACTS

SE-701

REMOTE RESET

RESET

ANALOG

OUTPUT

LEAKAGE

3-PHASE, 3-WIRE CONNECTION

3-PHASE, 4-WIRE

CONNECTION

1-PHASE

CONNECTION

XXX:1 OR EFCT-X OR

CS30-X

345

1 A 5 A C S1 S2

SE-701

Technical Note CT-01

provides additional

information on CT selection.

ALTERNATE CT

CONNECTIONS

PGA-0500PGA-05CV

FIGURE 2. Typical Connection Diagrams.

INDICATION

PWR

INHB

TRIP

NOTES:

1. RELAY CONTACTS SHOWN WITH SE-701

DE-ENERGIZED.

Ø A

Ø B

Ø C

XXX:5

12 345

1 A 5 A C S1 S2

11 10

13 14

ISOLATED CONTACTS

REMOTE RESET

RESET

ANALOG

OUTPUT

LEAKAGE

SE-701

STOP START

O/L

PGA-0500

PGA-05CV

FIGURE 3. Typical Three-Phase-Starter Connection.

Page 6

SE-701 Ground-Fault Monitor Rev . 10-C-072414

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

00 to 06  07  09

LED trip indication Yes Yes

Mechanical flag trip indication Yes No

Non-volatile trip memory No Yes

Device state after supply voltage

cycled when tripped (ground-fault

removed)

Fail-safe

Trip LED: Off

Trip relay: Energized

Trip flag: Red

Trip LED: On

Trip relay: De-energized

Non-fail-safe

Trip LED: Off

Trip relay: De-energized

Trip flag: Red

Trip LED: Off

Trip relay: De-energized

CT Detection must be ON for EFCT No No Yes

Page 7

SE-701 Ground-Fault Monitor Rev . 10-C-072414

LR 53428

USC

121.0

(4.76)

20.5

(0.81)

M5 SCREWS

30.0

(1.18)

56.0

(2.21)

46.0

(1.81)

121.0

(4.76)

80.0

(3.15)

NOTE 2

MOUNTING DETAIL

TOP

25.0

(0.98)

82.0

(3.23)

69.8

(2.75)

EFCT - 1FC

FLUX

CONDITIONER

(OPTIONAL)

138.0 MAX

(5.43)

5.5

(0.22)

110.0

(4.33)

5.5

(0.22)

22.0

(0.87)

5.0 (0.20) Ø

RECESSED FOR

8-mm HEX NUT

1.0 (0.04) DEEP

FRONT

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.

30.0

(1.18)

SIDE

56.0

(2.21)

126.0

(4.96)

EFCT-1 EARTH FAULT CT

600 V CLASS, INSULATION CLASS A

FIGURE 4. EFCT-1 Outline and Mounting Details.

Page 8

SE-701 Ground-Fault Monitor Rev . 10-C-072414

215.0

(8.46)

64.0

(2.52)

31.0

(1.22)

M5 SCREWS

TOP MOUNTING DETAIL

52.3

(2.06)

215.0

(8.46)

162.0

(6.38)

M5 OR 10-32 TAP

26.5

(1.04)

25.0

(0.98)

236 MAX

(9.29)

139.7

(5.50)

FLUX CONDITIONER

(INCLUDED)

BONDING

SCREW

5.0 (0.20) DIA

8.5

(0.33)

8.5

(0.33)

SIDE

31.0

(1.22)

198.0

(7.80)

60.0

(2.36)

FRONT

215.0

(8.46)

LR 53428

USC

EFCT-2 EARTH FAULT CT

600 V CLASS, INSULATION CLASS A

NOTES:

1. DIMENSIONS IN MILLIMETRES (INCHES).

2. MOUNTING SCREWS: M5 OR 10-32.

3. RoHS COMPLIANT.

4. EN 60044-1 COMPLIANT.

FIGURE 5. EFCT-2 Outline and Mounting Details.

Page 9

SE-701 Ground-Fault Monitor Rev . 10-C-072414

SE-CS30-26

LR 53428

USC

CURRENT SENSOR

68.0

(2.68)

17.0

(0.67)

26.5

(1.04)

M5 SCREWS

TOP MOUNTING DETAIL

68.0

(2.68)

34.0

(1.34)

52.5

(2.07)

42.6

(1.68)

M4 OR 8-32 TAP

25.0

(0.98)

110.0 MAX

(0.43)

72.0

(2.83)

34.0

(1.34)

26.0

(1.02)

5.0

(0.20)

5.0

(0.20)

58.0

(2.28)

FRONT

7. 0

(0.87)

4.0 (0.16) Ø

RECESSED FOR

7-mm HEX NUT

3.0 (0.12) DEEP

SIDE

26.5

(1.04)

52.5

(2.07)

MOUNTING FOOT

INSTALLA TION

TOOL

DETAIL ‘A’

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.

4. RoHS COMPLIANT.

5. EN 60044-1 COMPLIANT.

6. SE-CS30-26 SHOWN.

FIGURE 6. EFCT-26 and SE-CS30-26 Outline and Mounting Details.

Page 10

SE-701 Ground-Fault Monitor Rev . 10-C-072414

LR 53428

USC

121.0

(4.76)

20.5

(0.81)

30.0

(1.18)

M5 SCREWS

TOP MOUNTING DETAIL

121.0

(4.76)

80.0

(3.15)

56.0

(2.21)

46.0

(1.81)

NOTE 3

SE-CS30-70

CURRENT SENSOR

25.0

(0.98)

138.0 MAX

(5.43)

69.8

(2.75)

5.5

(0.22)

5.5

(0.22)

110.0

(4.33)

FRONT SIDE

22.0

(0.87)

Ø 5.0 (0.20)

RECESSED FOR

8-mm HEX NUT

1.0 (0.04) DEEP

30.0

(1.18)

126.0

(4.96)

56.0

(2.21)

MOUNTING FOOT

INSTALLATION

TOOL

DETAIL ‘A’

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.

4. RoHS COMPLIANT.

5. EN 60044-1 COMPLIANT.

FIGURE 7. SE-CS30-70 Current Sensor.

Page 11

SE-701 Ground-Fault Monitor Rev. 10-C-072414

TOP (COVER REMOVED)

MOUNTING DETAIL

72.0

(2.83)

FLUX

CONDITIONER

BOTTOM

NOTES:

1. DIMENSIONS IN MILLIMETRES (INCHES).

2. MOUNTING SCREWS: M5 OR 10-32.

3. RoHS COMPLIANT.

4. CE COMPLIANT.

14.0

(0.55)

1.7

(0.07)

SE-CS30-8

OUTLINE

FRONT

SE-CS30-5 SE-CS30-8

DIMENSIONS

95.0 (3.74)

175.0 (6.89)

158.0 (6.22)

141.0 (5.55)

82.0 (3.22)

32.0 (1.26)

17.5 (0.69)

15.0 (0.59)

33.0 (1.30)

9.0 (0.35)

40.0 (1.57)

5.3 (0.21)

130.0 (5.12)

218.0 (8.78)

203.0 (7.99)

178.0 (7.01)

103.5 (4.07)

32.0 (1.26)

11.0 (0.43)

13.3 (0.52)

34.0 (1.34)

11.0 (0.43)

40.0 (1.57)

7.0 (0.28)

SE-CS30-4

200.0 (7.87)

309.0 (12.17)

290.5 (11.44)

267.5 (10.50)

150.0 (5.90)

34.0 (1.34)

11.0 (0.43)

13.3 (0.52)

43.0 (1.69)

11.5 (0.45)

50.0 (1.97)

7.0 (0.28)

FIGURE 8. SE-CS30-4, -5, and -8 Current Sensors.

Page 12

SE-701 Ground-Fault Monitor Rev. 10-C-072414

.50

.05

.40

.30

.20

.10

1.0

1.5

2.0

2.5

% CT PRIMARY TIME (s)

SE-701

GROUND-FAULT MONITOR

TEST RESET

PWR INHB TRIP

LITTELFUSE STARTCO

85.0

(3.35)

110.0

(4.33)

75.0

(2.95)

85.0

(3.35)

42.5

(1.67)

FRONT VIEW

BEZEL

SIDE VIEW

BRACKET 55.0 (2.20) WIDE

MONITOR

85.0

(3.35)

72.0

(2.83)

60.0

(2.36)

6.0

(0.24)

6.0

(0.24)

9.5

(0.37)

42.5

(1.67)

30.0

(1.18)

60.0

(2.36)

79.0

(3.11)

9.5

(0.37)

2.0 (0.08) RAD

MAXIMUM

4.0 (0.16) DIA

8.7 (0.34) DIA

4.3 (0.17) RAD

ALTERNATE

CONFIGURATIONS

PANEL CUTOUT DETAIL

PANEL THICKNESS

1.6 (0.06) TO 4.8 (0.19)

6-32

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.

3. CONNECT WIRING TO TERMINALS.

4. INSTALL BEZEL USING 6-32 x 0.31 SCREWS

PROVIDED.

NOTE:

1. DIMENSIONS IN MILLIMETRES (INCHES).

FIGURE 9. PMA-55 Panel-Mount Adapter.

Page 13

SE-701 Ground-Fault Monitor Rev. 10-C-072414

.50

.05

.40

.30

.20

.10

1.0

1.5

2.0

2.5

% CT PRIMARY TIME (s)

SE-701

GROUND-FAULT MONITOR

TEST RESET

PWR INHB TRIP

LITTELFUSE STARTCO

99.0

(3.90)

88.0

(3.46)

44.0

(1.73)

FRONT VIEW

116.0

(4.57)

PANEL THICKNESS

1.6 (0.06) TO 4.8 (0.19)

75.0

(2.95)

SIDE VIEW

BRACKET 55.0 (2.20) WIDE

MONITOR

TRANSPARENT

COVER (NOTE 2)

99.0

(3.90)

72.0

(2.83)

60.0

(2.36)

6.0

(0.24)

6.0

(0.24)

9.5

(0.37)

44.0

(1.73)

30.0

(1.18)

60.0

(2.36)

79.0

(3.11)

9.5

(0.37)

2.0 (0.08) RAD

MAXIMUM

4.5 (0.18) DIA

8.7 (0.34) DIA

4.3 (0.17) RAD

ALTERNATE

CONFIGURATIONS

PANEL CUTOUT DETAIL

INSTALLATION INSTRUCTIONS:

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. ATTACH COVER USING SECURITY SCREWS

OR THUMB SCREWS PROVIDED.

NOTES:

1. DIMENSIONS IN MILLIMETRES (INCHES).

2. MEETS NEMA3, IP53.

3. INCLUDES TWO TR20 TAMPER-RESISTANT

TORX SCREWS (M4-0.7x16 mm, INSTALLED)

AND TWO THUMB SCREWS.

FIGURE 10. PMA-60 Panel-Mount Adapter.

Page 14

SE-701 Ground-Fault Monitor Rev. 10-C-072414

100

67.5

(2.657)

R1.25(0.049)

MAXIMUM

67.5

(2.657)

66.0

(2.598)

48.0

(1.890)

TOP MOUNTING CUTOUT

71.0

(2.795)

65.0

(2.559)

ANALOG % CURRENT METER

PGA-0500

REARSIDE

FRONT

NOTE 1

NOTES:

1. CONVERSION KIT FOR 0-5 V ANALOG

OUTPUT. SEE PGA-0500 DOCUMENTATION.

2. DIMENSIONS IN MILLIMETRES (INCHES).

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

Page 15

SE-701 Ground-Fault Monitor Rev. 10-C-072414

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

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)

Environment:

Operating Temperature:

Altitude:

≤ 1,000 m (3,281’) ........ -40 to 60C

(-40 to 140°F)

3,000 m (9,843’) ........... -40 to 55C

(-40 to 131°F)

5,000 m (16,404’) ......... -40 to 50C

(-40 to 122°F)

Storage Temperature ........... -55 to 80C

(-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

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

SE-701 Ground-Fault Monitor Rev. 10-C-072414

Fast Transient ...................... IEC 61000-4-4

4 kV on AC mains and

I/O lines

Surge Immunity .................. IEC 61000-4-5

Zone B

± 1 kV differential mode

± 2 kV common mode

Conducted RF Immunity .... IEC 61000-4-6

10 V, 0.15-80 MHz,

80% AM (1 kHz)

Magnetic Field Immunity ... IEC 61000-4-8

50 Hz and 60 Hz , 30 A/m

and 300 A/m

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

Certification ................................. CSA, Canada and USA

LR 53428

USC

UL Listed

Australia

N11659

FCC

CE, European Union

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 -

Supply:

3 – 24-Vac Supply

U – Universal 120/240-Vac/Vdc Supply

D – 12/24-Vdc Supply

T – 48-Vdc Supply

Conformal Coating:

Blank – Partial Conformal Coating

CC – Full Conformal Coating

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

SE-701 Ground-Fault Monitor Rev. 10-C-072414

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 non-

Littelfuse Startco personnel.

Page 18

SE-701 Ground-Fault Monitor Rev. 10-C-072414

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

sensor. Ensure the cables pass through the ground-

fault-current-sensor window. This check can be done

visually with knowledge of the circuit. The

connection of the current-sensor secondary to the SE-

701 is not polarity sensitive.

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-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 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.

SE-701

SE-400

SE-701

SE-100T

a) USING SE-400 XXX:5

LOAD

FROM

POWER

SOURCE

123 45

1 A 5 A C S1 S2

L2/N

11 OP2

OP1

LL1

RMT1

RMT2

REMOTE

TEST

b) USING SE-100T XXX:5

LOAD

FROM

POWER

SOURCE

123 45

1 A 5 A C S1 S2

L2/N

REMOTE

TEST

CLO 0.65 A

2.75 A

LL1 HI

NL2

RMT

FIGURE 12. Ground-Fault-Test Circuits.

Page 19

SE-701 Ground-Fault Monitor Rev. 10-C-072414

TABLE 2. GROUND-FAULT-TEST RECORD

DATE TEST RESULTS

Retain this record for the authority having jurisdiction.

Page 20

SE-701 Ground-Fault Monitor Rev. 10-C-072414

APPENDIX A

SE-701 REVISION HISTORY

MANUAL

RELEASE DATE MANUAL

REVISION PRODUCT 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

ECTION 4

Fig. 8 updated.

ECTION 5

Update to include altitude and vibration specifications.

PPENDIX A

Revision history updated.

REVISION 10-B-102113

ECTION 4

Fig. 6 updated to include EFCT-26 and SE-CS30-26.

ECTION 5

Conformal coating specifications added.

FCC certification mark added.

ECTION 6

Updated ordering information with full conformal coating (CC) option.

PPENDIX A

Revision history updated.

REVISION 10-A-041213

ECTION 3

Figs. 2 and 3 updated to include PGA-05CV.

ECTION 4

Figs. 7, 8, and 9 added.

ECTION 5

Environment section updated to include Fahrenheit temperature range.

ECTION 6

Additional current sensors added to ordering information.

PPENDIX A

Revision history added.

PRODUCT REVISION HISTORY

REVISION 09

Firmware: Improved operation of front-panel test button.