Motor Protection Relay
₹28,349.75
Product Code: JRC 113
Time line :Products will be shipped within 3 weeks from the date of order
Stock In Stock
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Product Description
Features
- Software based design
- Block on Start feature provides very accurate time
- Definite time over load protection
- Locked rotor current protection
- Single phasing protection
- Wide setting ranges
- Draw -out case
APPLICATION
The relay provides Over load protection of AC motors driving conveyors, crushers, machine tools, compressors, fans etc.
Principle of Operation
This is a Microprocessor based relay which has been designed to sense the load currents in all the three phases of an AC motor. It monitors the levels of these currents continuously, giving output signals for relay and LED driver circuits.
Ratings
Settings
Accuracy
OVER LOAD RATINGS
Burden
Primary current rating ( In ) :
1A or 5A
Auxiliary Supply :
1) 20-60V DC
2) 75 to 150V DC / AC
3) 175 to 300V DC / 185 to 250V AC
2) 75 to 150V DC / AC
3) 175 to 300V DC / 185 to 250V AC
Current setting ranges :
O/C - 50 to 200% in steps of 10%
EF - 5-80% in steps of 5%
EF - 5-80% in steps of 5%
Locked rotor current :
50 to 800% of rated current in steps of 50%
Block on Start time
setting range (T1) :
setting range (T1) :
5 to 35 seconds in steps of 2 sec.
O/C withstand time
setting range (T2) :
setting range (T2) :
1 to 16 seconds in steps of 1 sec.
Locked rotor withstand time
setting range (T3) :
setting range (T3) :
0.5 to 4 seconds in steps of 0.25 sec.
Accuracy of time setting :
± 5 with a minimum error of ±50m secs.
Over load capacity :
2 times rated continuously
20 times rated for 3s
20 times rated for 3s
current input :
0.2VA Per phase (at Rated 5A)
0.05VA per Phase (at Rated 1A)
0.05VA per Phase (at Rated 1A)
Aux. supply :
Less than 8W ( Non operated)
Less than 10W (Operated)
Less than 10W (Operated)
Contact Rating
Contact Durability:
Insulation
Standard Compliance
TRIP / ALARM Rating :
10A at 24V DC/230V AC
Unloaded contact :
10,000 operations min.
Loaded contact :
100,000 operations min.
- 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec .
Between all terminals and earth. - 1 KV RMS, 50 Hz for 1 minute across open contacts
Weight :
Approx. 2500 gms
Case Size :
144sq mm, depth 232mm
Installation :
Flush mounting
Panel cutout :
138mm x 138mm
Accuracy test :
IEC 60255-3
Insulation test :
IEC 60255-5
Terminal Diagram
