ETC2 EGF3NODCDET3 Currentwatch current sensors egf series ground fault sensor Datasheet

CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
CA05311002E
Ground Fault Sensors with Solid-State or Mechanical Relay
Outputs
EGF Series Ground Fault Sensors
CurrentWatch Current Sensors
Bright LED Status Indicators
Contents
Overview . . . . . . . . . . . . . . . . . . . .
Model Selection, Switches . . . . . .
Model Selection, Accessories . . .
Wiring Diagrams . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . .
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The CurrentWatch EGF Series from
Eaton’s electrical business 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 is available with
either solid-state or mechanical relay
outputs.
The EGF Series with solid-state outputs offers the benefit of reliable,
long-lasting solid-state switches.
Solid-state design provides unlimited switch operating life, superior
resistance to shock and vibration,
zero off-state leakage, high switch
speeds and high input-output isolation. Solid-state outputs have solidcore housings with screw terminals.
Built-In Mounting Tabs
Product Features
■
■
■
■
Broad Range of Options to Meet Application Needs — N.O. or N.C., solidstate or mechanical relays, normally energized or normally de-energized
contacts
Setpoint Options Maximize Ease-of-Use and Application Flexibility — Field
selectable 5, 10 or 30 mA setpoints on the EGF “Tri-set” models make user
adjustments fast, sure and convenient
Compatible with Standard Equipment — Application on single- and threephases systems, ideal for use with shunt trip breakers, and magnetically
isolated from monitored circuit and control power
Agency Approved — UL and CE Certified, accepted worldwide
The EGF Series with mechanical
relay outputs are available in solidcore housings with a choice of N.O. or
N.C. SPST latching relays and a SPDT
Form C relay with auto-reset. All
mechanical models can be ordered
with a fixed setpoint or with a “triset” option, which provides three
factory-set, field-adjustable setpoints.
Typical Applications
Approvals
■
■
Choice of Solid-State
or Mechanical Relays
■
■
Personnel Protection (Typically 5 mA) — Detects sensitive ground fault conditions, which could cause injury to people, and functions as a sensor and
alarm trigger when applied as an input to an overall ground fault protection
system
Equipment Protection (Typically 10 or 30 mA) — For applications where
personnel protection is not the primary concern, higher setpoint capability
helps eliminate nuisance tripping while still providing adequate ground
fault detection to protect machine electronics
Regulatory — Meets requirements as stipulated by governmental and
industrial regulatory groups for ground fault sensing
UL Recognized
”Zero Sum” Operating Principle
Unless otherwise noted, the
products contained in this
document are not designed
or intended for use in human
safety applications.
In three-phase delta and wye systems, under normal conditions, current in the
“hot” leg of a two-wire load is equal in magnitude but opposite in sign to the
current in a neutral leg. As a result, the electromagnetic fields surrounding these
two conductors cancel, producing a “zero sum current.” As soon as current leaks
to ground (fault condition), the two currents become imbalanced and a net
magnetic field results. The CurrentWatch EGF Series sensors monitor this field
and trips the contacts when the leakage rises above the setpoint.
For Customer Service in the U.S. call 1-877-ETN CARE (386-2273),
in Canada call 1-800-268-3578.
For Application Assistance in the U.S. and Canada
call 1-800-426-9184.
CA05311002E
For more information visit: www.eaton.com
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2
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
Example Application — CurrentWatch EGF Series
Insulation Breakdown Monitoring
Ground Fault Sensor
Circuit Interruption Device
E.g. Contactor
Leakage
to Ground
Model Selection — CurrentWatch EGF Series
Power Supply
Setpoint
AC Solid-State
Output
DC Solid-State
Output
120V AC
Fixed, 50 mA
Solid-State, N.O.,
1A @ 240V AC
—
Solid-State, N.C.,
1A @ 240V AC
—
Contacts
Catalog Number
Normally Energized
EGF1NOACNE050
Normally De-energized
EGF1NOACDE050
Normally Energized
EGF1NCACNE050
Normally De-energized
EGF1NCACDE050
Normally Energized
EGF1NODCNE050
Normally De-energized
EGF1NODCDE050
Normally Energized
EGF1NCDCNE050
Normally De-energized
EGF1NCDCDE050
Normally Energized
EGF1NOACNE100
Normally De-energized
EGF1NOACDE100
Normally Energized
EGF1NCACNE100
Normally De-energized
EGF1NCACDE100
Normally Energized
EGF1NODCNE100
Normally De-energized
EGF1NODCDE100
Normally Energized
EGF1NCDCNE100
Normally De-energized
EGF1NCDCDE100
Normally Energized
EGF3NOACNET3
Normally De-energized
EGF3NOACDET3
Normally Energized
EGF3NCACNET3
Normally De-energized
EGF3NCACDET3
Normally Energized
EGF3NODCNET3
Normally De-energized
EGF3NODCDET3
Normally Energized
EGF3NCDCNET3
Normally De-energized
EGF3NCDCDET3
Solid-State Output Sensors
Solid-Core Housings
—
—
Fixed, 100 mA
Solid-State, N.O.,
0.15A @ 30V DC
Solid-State, N.C.,
0.15A @ 30V DC
Solid-State, N.O.,
1A @ 240V AC
—
Solid-State, N.C.,
1A @ 240V AC
—
—
—
Solid-State, N.O.,
0.15A @ 30V DC
Solid-State, N.C.,
0.15A @ 30V DC
Tri-Set Adjustable, Solid-State, N.O.,
5, 10 or 30 mA
1A @ 240V AC
—
Solid-State, N.C.,
1A @ 240V AC
—
—
—
Solid-State, N.O.,
0.15A @ 30V DC
Solid-State, N.C.,
0.15A @ 30V DC
Stocked product, typical order quantities guaranteed in stock.
For more information visit: www.eaton.com
CA05311002E
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
3
August 2007
Model Selection — CurrentWatch EGF Series (Continued)
Power Supply
Setpoint
Mechanical Relay Output
Contacts
Catalog Number
120V AC
Fixed, 50 mA
Mechanical Relay, N.O. SPST Relay, Form A
(1A @ 120V AC)
Latching Relay
EGF1NOLA050
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Latching Relay
EGF1NCLA050
Mechanical Relay Output Sensors
Solid-Core Housings
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
Fixed, 100 mA
Normally Energized
EGF1SPDTNE050
Normally De-energized
EGF1SPDTDE050
Mechanical Relay, N.O. SPST Relay, Form A
(1A @ 120V AC)
Latching Relay
EGF1NOLA100
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Latching Relay
EGF1NCLA100
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
Tri-set Adjustable,
5, 10 or 30 mA
Normally Energized
EGF1SPDTNE100
Normally De-energized
EGF1SPDTDE100
Mechanical Relay, N.O. SPST Relay, Form A
(1A @ 120V AC)
Latching Relay
EGF1NOLAT3
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Latching Relay
EGF1NCLAT3
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
24V AC/DC
Fixed, 50 mA
Normally Energized
EGF1SPDTNET3
Normally De-energized
EGF1SPDTDET3
Mechanical Relay, N.O. SPST Relay, Form A
(2A @ 30V DC)
Latching Relay
EGF2NOLA050
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Latching Relay
EGF2NCLA050
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
Fixed, 100 mA
Normally Energized
EGF2SPDTNE050
Normally De-energized
EGF2SPDTDE050
Mechanical Relay, N.O. SPST Relay, Form A
(2A @ 30V DC)
Latching Relay
EGF2NOLA100
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Latching Relay
EGF2NCLA100
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
Tri-set Adjustable,
5, 10 or 30 mA
Normally Energized
EGF2SPDTNE100
Normally De-energized
EGF2SPDTDE100
Mechanical Relay, N.O. SPST Relay, Form A
(2A @ 30V DC)
Latching Relay
EGF2NOLAT3
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Latching Relay
EGF2NCLAT3
Normally Energized
EGF2SPDTNET3
Normally De-energized
EGF2SPDTDET3
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
Stocked product, typical order quantities guaranteed in stock.
Accessories — CurrentWatch EGF Series
Description
Catalog Number
DIN Rail Mounting Kit (Sensor pictured
for reference and not included in kit)
EDINKIT
Stocked product, typical order quantities guaranteed in stock.
CA05311002E
For more information visit: www.eaton.com
4
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
Output Table — CurrentWatch EGF Series
Normally Energized Models
Protection from faults and control power loss.
Control Power Applied
No Power
No Fault
Fault
Normally Open Models
Open
Closed
Open
Normally Closed Models
Closed
Open
Closed
Normally De-energized Models
Protection from faults only when power is applied.
Control Power Applied
No Power
No Fault
Fault
Normally Open Models
Open
Open
Closed
Normally Closed Models
Closed
Closed
Open
Latching (Mechanical Relay Output) Models
Latching models power up initially in the rest (normal) mode. If there is a fault
condition or the test button is pushed, the output contacts will change state
and latch. The output will remain latched regardless of whether the fault is
cleared or control power is removed. To reset the output, apply a momentary
contact across “reset” terminals.
For more information visit: www.eaton.com
CA05311002E
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
Wiring Diagrams — CurrentWatch EGF Series
Models
Wiring Diagrams
Solid-State Output
Models
Power
R
Output
Test
G
Power
HOT
NEUT
1Ø Power
1Ø Load
Output
Power
Interupt
EGF Series
Power
ØA
ØB
ØC
ØN
Power
ØA
ØB
ØC
Power
Interupt
EGF Series
3Ø Delta Power
3Ø Load
Output
Power
Interupt
EGF Series
Power
ØA
ØB
Mechanical Relay
Output Models
3Ø Wye Power
3Ø Load
Output
Power
Interupt
EGF Series
Latching
Models
1
2
Power
3Ø Power
1Ø Load
Output
External Reset
Switch
3
4
5
6
G
R
Power
Status
Output
Test
Jumper Location
of Tri-set Models
Auto Reset
Models
1
2
Power
3
4
5
6
G
R
Power
Status
Output
Test
Jumper Location
of Tri-set Models
CA05311002E
For more information visit: www.eaton.com
5
6
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
Specifications — CurrentWatch EGF Series
Description
Solid-State Output Models
Power Supply
Mechanical Relay Output Models
120V AC (55 – 110% of nominal voltage)
24V AC/DC (± 20%)
Output Contact Type Isolated Dry Contact
Mechanical Relay
Output Rating
(Switching Current
and Switching
Voltage)
AC Output Switching Models: 1A @ 240V AC
DC Output Switching Models: 0.15A @ 30V DC
Auto Reset Models:
SPDT Relay
1A @ 120V AC
2A @ 30V DC
Latching Models:
SPST Relay
1A @ 120V AC
2A @ 30V DC
Off-State Leakage
N.O. Models: < 10 µA
N.C. Models: < 2.5 mA
None
Response Time
200 ms @ 5% above trip point
60 ms @ 50% above trip point
15 ms @ 500% above trip point
Frequency Range
50 – 400 Hz (monitored circuit)
Loading
Isolation Voltage
Sensing Aperture
LED Indicator
Housing
Environmental
Approvals
2 VA max.
5,000V AC (tested)
0.74 in. (19 mm) dia.
Green LED for Power On Status; Red LED for Contact Status
UL94 V0 Flammability Rated
Operating Temperature: -4 to 122°F (-20 to 50°C)
Humidity: 0 – 95% RH, Non-condensing
UL 1053, Class 1 Recognized, CE
For more information visit: www.eaton.com
CA05311002E
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
August 2007
Approximate Dimensions — CurrentWatch EGF Series
Models
Approximate Dimensions in Inches (mm)
Solid-State Output
Models
TEST
0.20
(5.1)
Dia.
3.38
(86)
1.50
(38)
2.90
(73.7)
0.75
(19.1)
Dia.
Mechanical Relay
Models
Auto Reset (6 Terminals)
2.25
(57.2)
1.88
(47.6)
2.50
(63)
Latching (7 Terminals)
0.75 Dia
(19.1)
0.44
(11.2)
2.50
(63.5)
3.88
(98.6)
0.20 Dia
(5.1)
TEST
2.90
(73.7)
3.38
(85.9)
CA05311002E
For more information visit: www.eaton.com
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