Sai Creations

96 Sq mm OVER CURRENT RELAY JRC 966

 0.00

Features

  • Software based design
  • DIP switch settings
  • Choice of four curves
  • Instantaneous high set
  • Very low burden

Application:

The relay provides single pole over current protection for power systems. Relay operating time is determined by set definite time. The relay measures the current from input CT and if it exceeds the set threshold, it extends a trip signal after the operating time, which is determined by set definite time. The relay output contacts are self reset type. TEST button facilitates testing of relay

20 in stock

Description

Ratings

Current rating ( In ) 1A / 5A
Auxiliary Supply 20 to 60V DC or
80 to 260V AC/DC

Settings:

Over current (I >) 50 to 200% in steps of 10%
Instantaneous high set 2 to 16 times 1> set value

Operating Characteristics:

Inverse time Characteristics 3s Normal inverse
1.3s Normal inverse
1.5s Very inverse
0.8/0.6s Extremely inverse
Time multiplier setting (TMS) 0.01 to 1.6 in two ranges
1st range : 0.01to 0.32 in steps of 0.01
2nd range : 0.05 to 1.6 in steps of 0.05

Burden:

Auxiliary circuit 3W (Non-operated)
6W ( Operated
Current input circuit 1A – 0.05 VA (max) at rated current
5A – 0.2 VA (max) at rated current

Accuracy:

Operating value 105 to 120% of set current
Resetting value 80 to 97% of the pickup value
High set operating value ±5%
Inverse operating time ±5% or ± 30ms (which ever is higher)
High set operating time < 40ms @ 2 times the set current
Reset time 200 to 250ms
Over shoot time Less than 100ms

Output Contacts

For JRC 951P, JRC 952, Trip – 1N/O
JRC 962P, JRC 964 relays, Alarm – 2N/O
For JRC 953 & JRC 966 relays 2N/O contacts

Contact Rating

For JRC 951P, JRC 952, Trip – 10A at 24V DC/ 230V AC
JRC 962P, JRC 964 relays Alarm – 5A at 24V DC/ 230V AC
For JRC 953 & JRC 966 relays 5A at 24V DC/230V AC

Mechanical Design :

Weight 550gms approx
Case Size Fascia 96sqmm, Depth 105mm
Installation Flush mounting
Panel cutout 92mm x 92mm

Standard Compliance:

Accuracy test IEC 60255-3
Insulation test IEC 60255-5
1MHz HFD test IEC 60255-22-1

Ordering Information

Relay type JRC 966 – 3 Pole IDMT With High set
JRC 953 – 3 Pole IDMT Without High set
JRC 964 – 2 Pole IDMT With High set
JRC 952 – 2 Pole IDMT Without High set
JRC 962P – 1 Pole IDMT With High set
JRC 951P – 1 Pole IDMT Without High set
Auxiliary Supply 20 to 60V DC or 80 to 260V AC/DC

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