Cutler Hammer, Div of Eaton Corp EDF Series Catalog
Built-In Mounting Tabs
Choice of Solid-State
or Mechanical Relays
Bright LED Status Indicators
February 2009
EGF Series Ground Fault Sensors
CurrentWatch Current Sensors
Contents
Overview . . . . . . . . . . . . . . . . . . . . 1
Model Selection, Switches . . . . . . 2
Model Selection, Accessories . . . 3
Wiring Diagrams . . . . . . . . . . . . . . 5
Specifications . . . . . . . . . . . . . . . . 6
Dimensions . . . . . . . . . . . . . . . . . . 7
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.
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.
Approvals
■
UL Recognized
Unless otherwise noted, the
products contained in this
document are not designed
or intended for use in human
safety applications.
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
CA05311002E
Ground Fault Sensors with Solid-State or Mechanical Relay
Outputs
Product Features
■
Broad Range of Options to Meet Application Needs — N.O. or N.C., solid-
state 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 three-
■
phases 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
Typical Applications
■
Personnel Protection (Typically 5 mA) — Detects sensitive ground fault con-
ditions, 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
”Zero Sequence” Operating Principle
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.
1
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
CurrentWatch™ Current Sensors
2
EGF Series Ground Fault Sensors
Example Application — CurrentWatch EGF Series
Insulation Breakdown Monitoring
February 2009
Ground Fault Sensor
Circuit Interruption Device
E.g. Contactor
Model Selection — CurrentWatch EGF Series
Power Supply Setpoint AC Solid-State
Solid-State Output Sensors
Solid-Core Housings
Stocked product, typical order quantities guaranteed in stock.
120V AC Fixed, 50 mA Solid-State, N.O.,
Fixed, 100 mA Solid-State, N.O.,
Tri-Set Adjustable,
5, 10 or 30 mA
Leakage
to Ground
Output
1A @ 240V AC
Solid-State, N.C.,
1A @ 240V AC
— Solid-State, N.O.,
— Solid-State, N.C.,
1A @ 240V AC
Solid-State, N.C.,
1A @ 240V AC
— Solid-State, N.O.,
— Solid-State, N.C.,
Solid-State, N.O.,
1A @ 240V AC
Solid-State, N.C.,
1A @ 240V AC
— Solid-State, N.O.,
— Solid-State, N.C.,
DC Solid-State
Output
— Normally Energized
— Normally Energized
0.15A @ 30V DC
0.15A @ 30V DC
— Normally Energized
— Normally Energized
0.15A @ 30V DC
0.15A @ 30V DC
— Normally Energized
— Normally Energized
0.15A @ 30V DC
0.15A @ 30V DC
Contacts Catalog Number
EGF1NOACNE050
Normally De-energized EGF1NOACDE050
EGF1NCACNE050
Normally De-energized EGF1NCACDE050
Normally Energized
Normally De-energized EGF1NODCDE050
Normally Energized
Normally De-energized EGF1NCDCDE050
Normally De-energized EGF1NOACDE100
Normally De-energized EGF1NCACDE100
Normally Energized
Normally De-energized EGF1NODCDE100
Normally Energized
Normally De-energized EGF1NCDCDE100
Normally De-energized EGF3NOACDET3
Normally De-energized EGF3NCACDET3
Normally Energized
Normally De-energized EGF3NODCDET3
Normally Energized
Normally De-energized EGF3NCDCDET3
EGF1NODCNE050
EGF1NCDCNE050
EGF1NOACNE100
EGF1NCACNE100
EGF1NODCNE100
EGF1NCDCNE100
EGF3NOACNET3
EGF3NCACNET3
EGF3NODCNET3
EGF3NCDCNET3
For more information visit: www.eaton.com
CA05311002E
CurrentWatch™ Current Sensors
EGF Series Ground Fault Sensors
February 2009
Model Selection — CurrentWatch EGF Series (Continued)
Power Supply Setpoint Mechanical Relay Output Contacts Catalog Number
Mechanical Relay Output Sensors
Solid-Core Housings
Stocked product, typical order quantities guaranteed in stock.
120V AC Fixed, 50 mA Mechanical Relay, N.O. SPST Relay, Form A
Fixed, 100 mA Mechanical Relay, N.O. SPST Relay, Form A
Tri-set Adjustable,
5, 10 or 30 mA
24V AC/DC Fixed, 50 mA Mechanical Relay, N.O. SPST Relay, Form A
Fixed, 100 mA Mechanical Relay, N.O. SPST Relay, Form A
Tri-set Adjustable,
5, 10 or 30 mA
(1A @ 120V AC)
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
(1A @ 120V AC)
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
Mechanical Relay, N.O. SPST Relay, Form A
(1A @ 120V AC)
Mechanical Relay, N.C. SPST Relay, Form B
(1A @ 120V AC)
Mechanical Relay, SPDT Form C, Auto-Reset
(1A @ 120V AC)
(2A @ 30V DC)
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
(2A @ 30V DC)
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
Mechanical Relay, N.O. SPST Relay, Form A
(2A @ 30V DC)
Mechanical Relay, N.C. SPST Relay, Form B
(2A @ 30V DC)
Mechanical Relay, SPDT Form C, Auto-Reset
(2A @ 30V DC)
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF1SPDTDE050
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF1SPDTDE100
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF1SPDTDET3
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF2SPDTDE050
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF2SPDTDE100
Latching Relay
Latching Relay
Normally Energized
Normally De-energized EGF2SPDTDET3
EGF1NOLA050
EGF1NCLA050
EGF1SPDTNE050
EGF1NOLA100
EGF1NCLA100
EGF1SPDTNE100
EGF1NOLAT3
EGF1NCLAT3
EGF1SPDTNET3
EGF2NOLA050
EGF2NCLA050
EGF2SPDTNE050
EGF2NOLA100
EGF2NCLA100
EGF2SPDTNE100
EGF2NOLAT3
EGF2NCLAT3
EGF2SPDTNET3
3
Accessories — CurrentWatch EGF Series
Description Catalog Number
DIN Rail Mounting Kit (Sensor pictured
for reference and not included in kit)
Stocked product, typical order quantities guaranteed in stock.
CA05311002E For more information visit: www.eaton.com
EDINKIT
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