Description
Ratings
| Current rating ( In ) | 1A / 5A ( Site selectable) |
| Aux. Supply | 1) 20 to 60V DC |
| 2) 80 to 260V AC / DC |
Settings:
| Operating characteristics (Separate for Phase & Earth fault ) |
1) 3.0s Normal Inverse 2) 1.3s Normal Inverse 3) 1.5s Very Inverse 4) 0.8s Extremely Inverse 5) 0.6s Extremely Inverse 6) 13.3s Long Inverse 7) Definite Time |
| Phase OC (IDMT) | 20 to 200% in steps of 5% |
| Phase OC (Def time) | 50 to 500% in steps of 5 % |
| Earth fault (IDMT) | 5 to 80% in steps of 1% |
| Earth fault (Def time) | 5 to 100% in steps of 1% |
| SEF (Def time) | 2 to 80% in steps of 1% |
| TMS (Ph & E/F) | 0.02 to 1.0 in steps of 0.01 |
| Definite time (Ph, E/F & SEF ) | 0 to 25.0s in steps of 0.1s (0 –Instantaneous) |
| Phase Hi-set | 200 to 3200% in steps of 100% |
| Earth fault Hi-set | 50 to 1000% in steps of 50% |
| Hi-set operating time ( Ph & E/F ) |
0 to 500ms in steps of 50ms (0 – Instantaneous) |
| RS232 communication | MODBUS Protocol 9-Pin D at front end |
| RS485 communication | MODBUS Protocol Isolated Rs485 at rear end |
Mechanical Design :
| Weight | 2.5 Kgs.(Approx) |
| Case Size | Fascia 144mm x 144mm depth 232mm |
| Installation | Flush mounting |
| Panel cutout | 138mm x 138mm |
Accuracy:
| Operating value(IDMT) |
105% to 125% |
| Operating value (Def time) |
100% to 115% |
| Hiset operating value |
±5% |
| Drop-off / pick-up | Between 70% to 98% |
| Operating time | ±5% or ±30ms whichever is higher, for 3.0s NI, 1.3s NI.±7% or ±30ms whichever is higher, for 0.8s EI, 0.6s EI,1.5s VI & 13.3s LI characteristics. |
Contact Ratings:
| Trip Contact Make & carry |
1250VA at maximum 10A or 440V AC / 220V DC |
| Break capacity Alarm, Self |
2300VA at maximum 10A or 440V AC / 250V DC |
| supervision contacts | 5A at 24V DC / 230V AC |
Over Load Rating:
| Current input | 2 times rated continuous 20 times rated for 3s 40 times rated for 1s) |
Burden:
| Current input | 0.4VA per phase (Rated 5A) 0.05VA per Phase (Rated 1A) |
| Aux. Supply | Less than 8W (Non operated) Less than 12W (Operated) |
Ordering Information
| Relay | JNC 268 |
| Auxiliary supply | 20 to 60V DC 80 to 260V AC / DC |
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