45
VPR 3P
FEATURES :
INPUT SPECIFICATION :
DISPLAY AND KEY :
GENERAL SPECIFICATION :
Protection Available
3 digit bright LED display
Manual/Auto Reset option, Self powered
Time parameter: Power on delay, Recovery Time(Auto reset)
Trip delay
Over Voltage Asymmetry
Over Frequency Phase Sequence
Under Voltage Phase Loss
Under Frequency
Direct Voltage AC
Frequency
Resolution
Accuracy
VOLTAGE PROTECTION RELAY
280 to 520V AC ( L - L ) 3Ø-3W
160 to 300V AC ( L - N ) 3Ø-4W
45.0 Hz to 65.0 Hz
Class 1.0
Display
Dimension (mm)
Keys
Trip Setting
3 digit, 1line, 7 seg, 0.4” RED LED
75 (H) x 45 (W) x 110 (D) mm
SET, INC, DEC/RST
OUTPUT SPECIFICATION :
Relay
Relay Type
Rating
2 nos.
1 C/O (NO-C-NC)
st
1 Relay 10A, 230V AC
nd
2 Relay 5A, 230V AC
AUXILIARY SUPPLY :
Self powered, 30 VA MAX
Under voltage :
Over voltage :
Over Frequency : 45.0 Hz To 65.0 Hz
ENVIRONMENT CONDITION :
Relative Humidity
Operating Temp. 0°C to 55°C
UP to 95% RH
(non-condensing)
TECHNICAL SPECIFICATION
Page -1
MECHANICAL INSTALLATION
Front View(mm)
1 Volt
Under Frequency : 45.0 Hz To 65.0 Hz
Phase Asymmetry : 2-30%
Time Parameter
Power ON Delay Time : 0 To 99 Sec.
Trip delay Time : 0 To 999 Sec.
Recovery Time : 0 To 99 Sec.
TERMINAL CONNECTION
110
75 75
Side View(mm)
Read complete instructions prior to installation
and operation of the unit.
WARNING : Risk of electric shock.
SAFETY PRECAUTION
!
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.
WARNING GUIDELINES
WARNING : Risk of electric shock.
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.
1) Do not allow pieces of metal, wire clippings, or fine
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
or circuit breaker must be installed at convenient place
normally accessible to the operator.
INSTALLATION GUIDELINES
3) Use and store the instrument within the specified ambient
temperature and humidity ranges as mentioned in this
manual.
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.
MAINTENANCE
3) Fusible resistor must not be replaced by operator.
L1
NC
R2 R1
NCC CNO NO
L2 L3 N
VPR 3P
V
L1
R2
R1 L2 L3
SET
R
Y
B
N
TO
LOAD
L1
NC
R2 R1
NCC CNO NO
L2 L3 N
SET
VPR 3P
L1
R2
R1 L2 L3
V
KEY OPERATION
To enter in parameter setting
To view individual phase voltage
To Scroll & Hold Page
PRESS KEYFUNCTION
OPERATOR MODE
PARAMETER SETTING MODE
It is used to set parameter value
and to be save & exit from menu
To increment value in parameter
setting
To decrement value in parameter
setting
For 5 sec
SET
SET
OR
SET
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.
1) Voltage L1-L2
2) Voltage L2-L3
3) Voltage L3-L1
4) Frequency
4 1 5
4 0 0
4 3 3
5 0. 0
L1 L2 L3R1 R2
L1 L2 L3R1 R2
L1
L1
L2
L2
L3
L3
R1
R1
R2
R2
+
3Ø-4W 3Ø-3W
1) Voltage L1-N
2) Voltage L2-N
3) Voltage L3-N
4) Frequency
2 4 0
3 3 0
2 5 0
5 0. 0
L1 L2 L3R1 R2
L1 L2 L3R1 R2
L1
L1
L2
L2
L3
L3
R1
R1
R2
R2
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.
To reset the relay contact in
manual mode after tripping
(260-520V AC,3Ø-3W)
(260-520V AC,3Ø-3W)
(160-300V AC,3Ø-4W)
(160-300V AC,3Ø-4W)
DISPLAY PAGE