Current Protection Relay Operating Manual and Installation guide
Input connectors are marked by numbers 1, 2, 3, 4, 5, 6 and potential free
relay contacts are marked as 11, 12, 14 for relay1 and 21, 22, 24 for
relay2.Rated switchgear and fusing is required to prevent inrush. Wire of
2 sq. mm with Lug is recommended for Input connection. Use suitable
screw driver so that sufficient force can be applied, excess force may
result in damage to inside circuitry. Control voltage is to be applied with
fusing to the connector numbered as 14, 24. Refer diagrams for input
connection.
Connector details:
Parameter Settings:
Overcurrent Trip point 30 - 140 % of In
Undercurrent Trip point 10 - 95 % of In
Hysteresis Undercurrent , Overcurrent 5 - 50 % of trip point
Power on delay 3 Second Approx.
Reset delay 1 Second
Trip delay 0-10 Second (Undercurrent, Overcurrent)
Current unbalance Trip Point 20 % fixed
Current unbalance Trip Delay 5 Seconds fixed
Current unbalance Hysteresis 5 %
Safety IEC 61010-1-2010 Permanently
Operating reference condition
Reference Condition 23°C +/- 2°C
Input waveform Sinusoidal (distortion factor 0.005)
Input frequency 50 or 60 Hz + 2%
Technical Specifications:
Accuracy
Applicable Standards
Installation category: CAT III
IP for water & dust IEC60529
Pollution degree: 2
High Voltage Test 2.2 kV AC, 50Hz for 1 minute between
1 to 5 Amps settable
Nominal Input current In ( AC )
Auxiliary supply range 60-300 V AC/DC
all electrical circuits
Dimensions 53 x 110 x 60 mm
Contact Ratings 5A/250VAC/30VDC (resistive load)
Mechanical Endurance 1x10^7 OPS
Mechanical Attributes
Weight 175g Approx.
Electrical Endurance 1x10^5 OPS
Maximum continuous Input current (AC) 145 % of In
Current overload withstand
20 x for 1 second, repeated 5 Times in
5 minutes
Auxiliary nominal value 230 VAC 50/60 Hz
Auxiliary supply frequency 45 - 66 Hz
Operating measuring current range 5 to 140 % of nominal value
Operating measuring frequency range 40...70 Hz
Input current burden < 0.25 VA per phase at nominal
Auxiliary supply burden < 3 VA
Auxiliary supply voltage Nominal value + 1 %
Auxiliary supply frequency Nominal value + 1%
Measurement accuracy + 2 % of nominal value
Setting accuracy + 6 % of nominal value
+ 0.8 second for trip delay
Response time < 140 milisecond
Environmental
Operating temperature -10 to +55°C
Storage temperature -25 to +70°C
Relative humidity 0...90% non condensing
Shock 15g in 3 planes
Vibration 10...55 Hz, 0.15mm amplitude
Enclosure Flame retardant, IP20 (front face only)
Relay Contacts
connected use.
Types of output 1CO, 1CO+1CO
Relay configuration Energised or DeEnergised
(Energised-Relay is ON under healthy
condition and DeEnergised-Relay is
OFF under healthy condition)
Connection diagram:
3Phase
L1
N
L3
L2
1
2
3
4
5
6
L
D
A
O
I1
I2
I3
7
8
L(+)
N(-)
AUX
SUPPLY
1Phase
L
N
1
2
L
D
A
O
I1
14
12
11
Relay 1
COM
NC
NO
24
22
21
Relay 2
COM
NC
NO
Installation:
Installation to be carried out by qualified person along
with life protecting equipment to prevent hazardous shock.
Isolate incoming supply before connection.
Do not expose device to Rain, Dust environment.
Keep at least 10-15 mm distance on both sides of device.
Do not install near Vibrating environment.
Do not install near Heat source.
Install Fuses of 2 Amp in series with supply.
Use Sealing provision to protect from unintentional
adjustment.
Dimensions and Terminals:
Mounting:
To mount the device it should be fastened to a standard 35mm DIN rail
(DIN50022).
To remove from DIN rail use screw driver to pullout clip as shown below.
Removing From DIN rail
Mounting On DIN rail
60.0 + 0.10
53.0
1
10.0
13.8
5.7
1
2
3
4
5
6
7 8 9 11 12 14 21 22 24
5.7
The Current Protection Relay protects system
from the current faults. Relay protects against
undercurrent, over current and unbalance
faults.
Multiple LEDs indicate type of fault that helps
for diagnosis purpose.
Switch (Key) is provided to enable/ disable
unbalance function and to select automatic /
manual resetting of faults upon fault recovery.
Manual reset ensures safety.
Potential free relay contacts can be used for
connection / disconnection of load or trigger
alarm for annunciation purpose.
relay configuration can be ordered in fail safe
and normal operation depending upon
application The application includes motor
protection, conveyor system and for process
industry, etc.
