Eaton CurrentWatch EGF series - N.O. or N.C. SPST latching relay output Owner's manual

Eaton
Brand
Eaton
Model
CurrentWatch EGF series - N.O. or N.C. SPST latching relay output
Type
Owner's manual

This manual is also suitable for

WARNING
IN ORDER TO AVOID ELECTRIC SHOCK OR OTHER POSSIBLE INJURY:
• DO NOT USE THIS PRODUCT FOR HUMAN SAFETY APPLICATIONS. IT
WAS NOT DESIGNED, TESTED, OR RECOMMENDED FOR THIS USE.
• DO NOT USE THIS PRODUCT IN HAZARDOUS LOCATIONS (E.G.
EXPLOSIVE ATMOSPHERES). IT WAS NOT DESIGNED, TESTED, OR
RECOMMENDED FOR THIS USE.
• ENSURE THE PRODUCT IS PROPERLY WIRED TO THE CORRECT POWER
SUPPLY FOR THE APPLICATION. REFER TO THE SPECIFICATIONS AND
WIRING DIAGRAMS IN THIS PUBLICATION.
Catalog Number Description
EGF1NCLA050 120 VAC, N.C. SPST Relay, 50 mA Setpoint
EGF1NOLA050 120 VAC, N.O. SPST Relay, 50 mA Setpoint
EGF1NCLA100 120 VAC, N.C. SPST Relay, 100 mA Setpoint
EGF1NOLA100 120 VAC, N.O. SPST Relay, 100 mA Setpoint
EGF1NCLAT3 120 VAC, N.C. SPST Relay, 5/10/30 mA Setpoint, Tri-Set
EGF1NOLAT3 120 VAC, N.O. SPST Relay, 5/10/30 mA Setpoint, Tri-Set
EGF2NCLA050 24 VAC/DC, N.C. SPST Relay, 50 mA Setpoint
EGF2NOLA050 24 VAC/DC, N.O. SPST Relay, 50 mA Setpoint
EGF2NCLA100 24 VAC/DC, N.C. SPST Relay, 100 mA Setpoint
EGF2NOLA100 24 VAC/DC, N.O. SPST Relay, 100 mA Setpoint
EGF2NCLAT3 24 VAC/DC, N.C. SPST Relay, 5/10/30 mA Setpoint, Tri-Set
EGF2NOLAT3 24 VAC/DC, N.O. SPST Relay, 50/10/30 mA Setpoint, Tri-Set
Models Covered In This Publication
CurrentWatch™ EGF Series Ground Fault Sensors
120 VAC or 24 VAC/DC, N.O. or N.C. SPST
Latching Relay Output
Instructions Publication P51923
Effective July 2017
Supersedes March 2014
Instruction Leaflet
Montageanweisung
Notice d’installation
Instrucciones de montaje
Istruzioni per il montaggio
安装说明
Инструкция по монтажу
Montagehandleiding
Montagevejledning
Οδηγίες εγκατάστασης
Instruções de montagem
Monteringsanvisning
Asennusohje
Návod k montáži
Paigaldusjuhend
Szerelési utasítás
Montāžas instrukcija
Montavimo instrukcija
Instrukcja montażu
Navodila za montažo
Návod na montáž
Монтажни инструкции
Instrucţiuni de montaj
Upute za montažu
Electric current! Danger to life!
Only skilled or instructed persons may
carry out the following operations.
Lebensgefahr durch elektrischen Strom!
Nur Elektrofachkräfte und elektrotechnisch
unterwiesene Personen dürfen die im Folgenden
beschriebenen Arbeiten ausführen.
Tension électrique dangereuse !
Seules les personnes qualifiées et averties doivent
exécuter les travaux ci-après.
¡Corriente eléctrica! ¡Peligro de muerte!
El trabajo a continuación descrito debe ser realizado
por personas cualificadas y advertidas.
Tensione elettrica: Pericolo di morte!
Solo persone abilitate e qualificate possono eseguire
le operazioni di seguito riportate.
触电危险！
只允许专业人员和受过专业训练的人员进行下列工作。
Электрический ток! Опасно для жизни!
Только специалисты или проинструктированные
лица могут выполнять следующие операции.
Levensgevaar door elektrische stroom!
Uitsluitend deskundigen in elektriciteit en
elektrotechnisch geïnstrueerde personen is het
toegestaan, de navolgend beschreven
werkzaamheden uit te voeren.
Livsfare på grund af elektrisk strøm!
Kun uddannede el-installatører og personer der
e instruerede i elektrotekniske arbejdsopgaver,
må udføre de nedenfor anførte arbejder.
en
de
fr
es
it
zh
ru
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da
Προσοχή, κίνδυνος ηλεκτροπληξίας!
Οι εργασίες που αναφέρονται στη συνέχεια θα
πρέπει να εκτελούνται μόνο από ηλεκτρολόγους
και ηλεκτροτεχνίτες.
Perigo de vida devido a corrente eléctrica!
Apenas electricistas e pessoas com formação
electrotécnica podem executar os trabalhos
que a seguir se descrevem.
Livsfara genom elektrisk ström!
Endast utbildade elektriker och personer som
undervisats i elektroteknik får utföra de arbeten
som beskrivs nedan.
Hengenvaarallinen jännite!
Vain pätevät sähköasentajat ja opastusta saaneet
henkilöt saavat suorittaa seuraavat työt.
Nebezpečí úrazu elektrickým proudem!
Níže uvedené práce smějí provádět pouze
osoby s elektrotechnickým vzděláním.
Eluohtlik! Elektrilöögioht!
Järgnevalt kirjeldatud töid tohib teostada ainult
elektriala spetsialist vői elektrotehnilise
instrueerimise läbinud personal.
Életveszély az elektromos áram révén!
Csak elektromos szakemberek és elektrotechnikában
képzett személyek végezhetik el a következőkben leírt
munkákat.
Elektriskā strāva apdraud dzīvību!
Tālāk aprakstītos darbus drīkst veikt tikai
elektrospeciālisti un darbam ar elektrotehniskām
iekārtām instruētās personas!
el
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hu
lv
Pavojus gyvybei dėl elektros srovės!
Tik elektrikai ir elektrotechnikos specialistai gali
atlikti žemiau aprašytus darbus.
Porażenie prądem elektrycznym stanowi
zagrożenie dla życia!
Opisane poniżej prace mogą przeprowadzać tylko
wykwalifikowani elektrycy oraz osoby odpowiednio
poinstruowane w zakresie elektrotechniki.
Življenjska nevarnost zaradi
električnega toka!
Spodaj opisana dela smejo izvajati samo
elektrostrokovnjaki in elektrotehnično poučene osebe.
Nebezpečenstvo ohrozenia života
elektrickým prúdom!
Práce, ktoré sú nižšie opísané, smú vykonávat’
iba elektroodborníci a osoby s elektrotechnickým
vzdelaním.
Опасност за живота от електрически ток!
Операциите, описани в следващите раздели,
могат да се извършват само от
специалисти-електротехници и инструктиран
електротехнически персонал.
Atenţie! Pericol electric!
Toate lucrările descrise trebuie efectuate numai
de personal de specialitate calificat şi de persoane
cu cunoştiinţe profunde în electrotehnică.
Opasnost po život uslijed električne struje!
Radove opisane u nastavku smiju obavljati samo
stručni električari i osobe koje su prošle
elektrotehničku obuku.
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490050021
Introduction
The CurrentWatch™ EGF Series is a family of
ground fault (earth leakage) sensors. Ground
fault sensors help protect people, products, and
processes from damage by ground fault
conditions by monitoring all current-carrying
conductors in grounded single- and three-
phase delta or wye systems.
The EGF Series with mechanical outputs are
available in solid-core housings with a choice of N.O. or N.C. SPST
latching relays. All mechanical models can be ordered with a fixed
setpoint or with a “tri-set” option, which provides three factory-set,
field adjustable setpoints.
ote:N This manual only covers EGF Series models listed in the above table.
This installation manual does not cover EGF Series models with auto-reset.
Quick Install Guide
The below steps can be followed to quickly install a CurrentWatch
EGF Series switch.
1. Run all current carrying conductors through sensor window,
using an auxiliary current transformer if conductors do not fit.
2. Mount the sensor to a surface if needed.
3. Connect output and power wiring:
a. Use up to 14 AWG copper wires,
b. Ensure power and load matches those shown on the sensor
label.
4. Test the unit:
a. Pressing the “TEST” button will test the sensor’s internal
circuits,
b. CAUTION: The output and any connected loads will switch
during the test process.
Installation and Mounting
Considerations for all EGF Series sensors…
•
Run wire to be monitored through the aperture (opening) in the
switch body, making sure all wires are oriented so that current
flows in the same direction (see “Principal of Operation” section
below.
•
These sensors can be located in the same environment as
motors, contactors, heaters, pull-boxes and other electrical enclo-
sures.
•
Mounting can be done in any position or hung directly on a wire
with a wire tie.
•
Be sure to leave at least 1.0 in. (25.4 mm) distance between sen-
sor and other magnetic devices.
Considerations for wiring EGF Series sensors…
•
Use up to 10 AWG copper wire and tighten terminals to 4.5 in.-lbs
/ 0.51 N·m maximum torque.
•
Connect power wiring to terminals 1 and 2, making sure that the
power supply matches the power rating on the sensor label.
•
Connect output wiring to terminals 3 and 4.
Principal of Operation
Under normal conditions, the current in one wire of a two wire load
is equal in strength but opposite in sign to the current in other wire.
The two wires create magnetic fields that cancel, a condition known
as “Zero Sum Current.” If any current leaks to ground (Ground Fault),
the two currents become unbalances and there is a net resulting
magnetic field. The EGF Series sensor detects this minute field and
change the output state. This concept extends to three phase sys-
tems such as 3-wire Delta and to 4-wire Wye.
Single Phase
(Phase to
Neutral or Phase
to Phase)
Three-Phase
Delta
(Includes Neutral
if Load Uses
Neutral)
Three-Phase
Wye
(Include Neutral
if Load Uses
Neutral)
Three-Phase
Load
(Using Auxiliary
CT)
WIRING
Use up to 14 AWG copper wire and tighten terminals to 4.5 in.-lbs /
0.51 N·m maximum torque. See diagram below.
Power
Connect power wiring to Terminals 1 and 2. Be sure that the power
supply matches the power rating on the sensor label.
Output
Connect output wiring to Terminals 3 and 4.
Reset Switch
Connect a momentary dry contact to the Reset Terminals 5 and 6.
Limit wire run to 200 ft. (60.96 m) of 18 AWG or larger wire.
Momentary Reset
Only close the reset terminals momentarily—the sensor will not
work properly if the reset terminals are closed (shorted) continu-
ously. Limit wire run to 200 ft. (60.96 m) of 18 AWG or larger wire.
Parallel Reset Connection
Multiple sensors may be connected to the same reset switch in
parallel. Only the sensors that have detected a fault and have latched
will be reset. A sensor will not reset unless the fault has dropped
below setpoint.
Operation
The EGF Series latching ground fault sensors operating in one of two
states: Reset or Latched. If control power is removed, the sensor
remains in it’s last state (latched or reset).
Reset
The sensor has not detected a fault and the output is in the “nor-
mal” position. For Normally Open (N.O.) sensors, the contact is
normally open in the reset condition. For Normally Closed (N.C.) sen-
sors, the contact is normally closed in the reset position.
Latched
Upon detecting a fault or when the TEST switch is pressed, the out-
put will switch and “latch.” The output will remain latched until the
ground fault is removed and the output is reset by a momentary dry
contact on Terminals 5 and 6.
Red Status LED (On When Tripped)
Setpoint Adjustment
(Located Under Label)
Test Button
(Caution: Will Activate Output Relay)
External Reset Button (5 and 6)
Output (3 and 4)
Power Supply Input (1 and 2)
Power (Green) LED
(On if Power is Applied)
1 2 3 4 5 6
G R
TEST
2
EATON www.eaton.com
CurrentWatch™ EGF Series Ground Fault Sensors
120 VAC or 24 VAC/DC, N.O. or N.C. SPST
Latching Relay Output
Instructions Publication P51923
Effective July 2017
Power Supply Notes
All low-current ground-fault sensors are sensitive devices that
require reasonable care in system design to avoid false trips caused
by high electrical noise levels. Keep in mind that the best way to
reduce noise in a system is to suppress it at its source.
•
Keep the sensor power isolated from noisy circuits.
•
Do not power the sensor with the same circuit that switches con-
tactors or other high current inductive loads.
System Grounding
Good design practice and code require that all AC power systems
be grounded. The EGF Series sensors are designed to work on
grounded AC power systems. They may not operate properly on
ungrounded systems.
Specications
Specification Value
Power Supply 120 VAC (Operates from 66-132 V)
24 VAC/DC (Operates from 19.2-28.8 V)
Voltage Range Up to 1,500 VAC (Monitored Circuit)
Power Consumption 2.5 W
Output Latching Electromechanical Relay
Normally Open Models Latch Closed Upon Sensed Fault
Current
Normally Closed Models Latch Open Upon Sensed Fault
Current
Output Rating 1.0 A @ 120 VAC
2.0 A @ 30 VAC
Response Time At 5% Over Setpoint: 200 ms
At 50% Over Setpoint: 60 ms
At 500% Over Setpoint: 15 ms
Setpoint Range Selectable by Model
Fixed Setpoints: 50, 100 mA
Adjustable Setpoints: 5, 10, 30 mA (By Jumper)
Setpoint Adjustment See “Adjust Setpoint” in “Operation” Section
Frequency Range 50-400 Hz (Monitored Circuit)
Housing UL94 V0 Flammability Rated
Dimensions Case: 2.5 in. H x 2.8 in. W x 1.5 in. D (64 x 71 x 38 mm)
Aperture: 0.75 in. (19 mm)
LED Green = Power Supply Energized
Red = Relay Has Operated
Environmental Operating Temperature: +5 to +158°F (-15 to +70°C)
Humidity: 0-95% RH, Non-Condensing
Approvals UL Recognized, E313337
CE
RoHs Compliant
Testing
To test operation, gently press the TEST button. This simulates a fault
and tests the internal switching circuits. After the test is complete,
reset the sensor with a momentary dry contact on Terminals 5 and
6. CAUTION: Any circuit connected to the sensor will be operated.
Adjusting Setpoint
While not as precise as having it set at the factory, the setpoint can be
adjusted in the field. See wiring diagram for location of potentiometer.
The best way to adjust the trip point is to develop a load of the mag-
nitude at which you want the sensor to trip. A resistor of 4,000 Ohms
should provide a load of 30 mA at 120 VAC, or a night light bulb of 4
watts should relate to 33 mA. With the load energized and passing
through the sensing aperture, turn the potentiometer clockwise until the
sensor trips. Then, back one-eighth of a turn and the setpoint should be
correct.
When used with an external current transformer (CT), the sensor will
be set to trip at a point much lower than without the CT. This set point
adjustment should be done with the load passing through the CT in that
application.
3
EATON www.eaton.com
Instructions Publication P51923
Effective July 2017
CurrentWatch™ EGF Series Ground Fault Sensors
120 VAC or 24 VAC/DC, N.O. or N.C. SPST
Latching Relay Output
Eaton Industries GmbH
Hein-Moeller-Straße 7-11,
53115 Bonn, Germany
Eaton Corporation
W126 N7250 Flint Drive
Menomonee Falls,
WI 53051, USA
Contact your regional Eaton oce for additional technical support
Eaton is a registered trademark of
Eaton Corporation.
All other trademarks are property
of their respective owners.
Americas – Asia Pacic Europe – Middle East – Africa
Eaton Corporation
Electrical Sector – Sensors
+1.800.426.9184
www.eaton.com/sensors
Eaton Industries GmbH
Electrical Sector EMEA
+49 (0) 180 5 223822
www.eaton.eu/sensors
© 2017 by Eaton
All Rights Reserved
Printed in USA
Publication No. P51923 / 003
July 2017
CurrentWatch™ EGF Series Ground Fault Sensors
120 VAC or 24 VAC/DC, N.O. or N.C. SPST
Latching Relay Output
Instructions Publication P51923
Effective July 2017
Eaton Industries GmbH
Hein-Moeller-Straße 7-11,
53115 Bonn, Germany
Eaton
W126 N7250 Flint Drive
Menomonee Falls,
WI 53051, USA
Eaton
Electrical Sector – Sensors
+1.800.426.9184
www.eaton.com/sensors
Eaton Industries GmbH
Electrical Sector EMEA
+49 (0) 180 5 223822
www.eaton.eu/sensors
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Contact your regional Eaton office for additional technical support
Americas – Asia Pacific Europe – Middle East – Africa
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Eaton CurrentWatch EGF series - N.O. or N.C. SPST latching relay output Owner's manual

Eaton
Brand
Eaton
Model
CurrentWatch EGF series - N.O. or N.C. SPST latching relay output
Type
Owner's manual
This manual is also suitable for
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