selec
900CPR-1 / 900CPR-3
Operating Instructions
RoHS
FEATURES
Under current, Over current protection
q
Current asymmetry monitoring
q
(for 3
Ø System only
)
True RMS value measurement
q
User selectable Power ON delay, Trip time
q
delay and Recovery time
Adjustable hysteresis
q
One alarm relay with NC or NO operation
q
selectable
SPECIFICATIONS
DISPLAY
3 Digits, LCD with backlight
ELECTRICAL CONNECTION
900CPR-1 :
1Ø-2 wire
900CPR-3 :
1Ø-2 wire, 3Ø-3 wire, 3Ø-4 wire
AUXILIARY SUPPLY
110V / 230V AC (factory set)
50 / 60Hz
POWER CONSUMPTION
15VA max
CT PRIMARY SETTING
1A / 5A-999A
CT SECONDARY SETTING
1A or 5A (Selectable)
TRIP SETTINGS
Under Current
: 0 - 999A
(0-100% of CT Primary Setting)
Over Current
: 0.5A - 1.19kA
(10-120% of CT Primary Setting)
Current Asymmetry : 5.0 - 99.9%
TIME SETTINGS
Power ON Delay : 0.5 - 99.9sec
Response Delay (Trip time delay) : 0 - 99.9sec
Recovery Time : 0 - 99.9sec
Response Time : < 200ms
MAXIMUM CURRENT INPUT
120% of CT Primary setting
HYSTERESIS
0.1 - 99.9A
RESOLUTION
0.01, 0.1, 1A, 0.01kA
(Depends on
CT
setting)
ACCURACY
Current : 1% of Setting, 2 digits
±
±
Time (Recovery Time, Trip Time Delay,
Power ON Delay) : 5% of setting 200ms
±
±
OUTPUT SPECIFICATIONS
Relay : 1C/O (SPDT)
RELAY RATING
NO (5A, 250V AC)
NC (3A, 250V AC)
LED INDICATION
LED(Red) : Trip
ENVIRONMENTAL SPECIFICATIONS
- Indoor use
- Altitude of up to 2000 meters
- Pollution degree
II
O
O
Temperature : Operating :
0 C to 50 C
O
O
Storage
: -20 C to 70 C
Humidity
: Up to 95% RH, non-condensing
MECHANICAL SPECIFICATIONS
No. of Push Buttons : 3
Size : 35mm width
Mounting : 35mm Din Rail Mount
Wire Size (max) : 4 sq.mm
Screw tightening torque : 0.5 N-M
WEIGHT
CPR-1
: 130 gms.
CPR-3
: 150 gms.
SAFETY PRECAUTIONS
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 the equipment is not used in a manner
specified by the manufacturer it might impair the
protection provided by the equipment.
If there is physical damage to the unit then do not
use it.
Read complete instructions prior to installation
and operation of the unit.
WIRING GUIDELINES
WARNING
1. To prevent the risk of electric shock power supply
to the equipment must be kept OFF while doing the
wiring arrangement.
2. Wiring shall be done strictly according to the
terminal layout with shortest connections. Confirm
that all connections are correct.
CAUTION
1. To ensure the safe operation of unit, check the
wiring and connections.
2. It is recommended to test the unit periodically to
satisfy the regulations.
DIMENSIONS ( All dimensions in mm )
35
44
70.50
TERMINAL CONNECTIONS
900CPR-1
RELAY
18
15
16
NO
COM
NC
N
L
S1
S2
900CPR-3
3S1
3S2
RELAY
18
15
16
NO
COM
NC
N
L
1S1
1S2
2S1
2S2
Doc. name : OP INST 900CPR
OP440-V01(Page 1 of 3)
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