MULTISPAN EFR-63 Manual

Earth Fault Relay

FEATURE

Earth Fault Current Monitoring In 1Ø - 2W, 3Ø-3W
And 3Ø-4W System
Test Mode Available.
Remote Tripping Reset Facility.
Relay Status Indication By LED
Test/Trip Reset Via Front Key / Remote
TECNICAL SPECIFICATION
INPUT SPECIFICATION :
Input Current
5 Amp. AC From CBCT OR CT
Range 10% to 100%
1 %
Resolution
DISPLAY & KEYS :
Display 3 Digit, 7 Seg., 0.36", Red.
Keys SET, INC, DEC.
OUTPUT SPECIFICATION :
Relay
1 Nos.
Relay Type NO - C
Rating 5A,230V AC Resistive Load
AUXILIARY SUPPLY :
Supply Voltage
100 To 270 V AC
Power Consumption
3VA @ 230 VAC MAX
(VA Rating)
ENVIRONMENT CONDITION :
EFR-63
Operating Temp.
0 - 55°C
Relative Humidity
95% RH

MECHANICAL DIMENSION

FRONT VIEW
27.5 mm
L N S1 S2
EFR 63 R
50
76 mm 76 mm
Set %
Earth Fault Relay
RST/TST
SET
RST/TST
NO C
SIDE VIEW
84 mm
76 mm

TERMINAL CONNECTION

CT OPTION
L1
S2
S1
L2
L3
N
!
S1
100-270V AC,
50/60Hz
L N
L N S1 S2
EFR 63
R
Rated Input Current : 5 Amp
50
(From CBCT OR CT)
EF Trip Setting:
Set %
10% to 100% of rated input
Earth Fault Relay
Auxiliary Supply: 100-270 VAC,3 VA
RST/TST
SET
RST/TST
NO C

KEY OPERATION

FUNCTION

OPERATION MODE

To Enter in Parameter Setting
To Enter in Test Mode
BACK VIEW
To Reset the Relay Contact
27.5 mm
Manually After Tripping
Parameter Setting MODE
To Increment Parameter Value
To Decrement Parameter Value
To Save & Exit From Parameter
Setting Mode

MECHANICAL INSTALLATION

1) To install the instrument on a DIN rail, raise the clamp at the
back of the instrument and place it on the rail. Now release
the clamp, so the instrument fits on the DIN rail.
2) Ensure proper fitting of the instrument by pulling it outwards.
3) To remove the instrument raise the clamp to release it from
the DIN rail.
4) The equipment in its installed state must not come in
close proximity to any heating source, caustic vapors, oil
steam, or other unwanted process byproducts.
5) Do not connect anything to unused terminals.

MAINTENANCE

1) The equipment should be cleaned regularly to avoid
blockage of ventilating parts.
2) Clean the equipment with a clean soft cloth. Do not use
isopropyl alcohol or any other cleaning agent.
3) Fusible resistor must not be replaced by operator.
CBCT
TO
LOAD

SAFETY PRECAUTION

!
S2
All safety related codifications, symbols and instructions
that appear in this operating manual or on the equipment
must be strictly followed to ensure the safety of the operating
personnel as well as the instrument.
If all the equipment is not handled in a manner specified
by the manufacturer, it might impair the protection provided
by the equipment.
Read complete instructions prior to installation
and operation of the unit.
WARNING : Risk of electric shock.

INSTALLATION GUIDELINES

1) Do not allow pieces of metal, wire clippings, or fine
KEY PRESS
metallic fillings from installation to enter the product or
else it may lead to a safety hazard that may in turn
endanger life or cause electrical shock to the operator.
2) Circuit breaker or mains switch must be installed
between power source and supply terminal to facilitate
power 'ON' or 'OFF' function. However this mains switch
For 5 sec
or circuit breaker must be installed at convenient place
normally accessible to the operator.
For 2 sec
3) Use and store the instrument within the specified ambient
temperature and humidity ranges as mentioned in this
manual.
WARNING GUIDELINES
WARNING : Risk of electric shock.
For 3 sec
1) To prevent the risk of electric shock, power supply to the
equipment must be kept OFF while doing the wiring
arrangement. Do not touch the terminals while power is
being supplied.
2) To reduce electro magnetic interference, use wire with
adequate rating and twists of the same of equal size shall
be made with shortest connection.
3. Cable used for connection to power source, must have a
cross section of 1mm or greater. These wires should have
insulations capacity made of at least 1.5kV.
4) A better anti-noise effect can be expected by using
standard power supply cable for the instrument.
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