Sai Creations

MOTOR PROTECTION RELAY JRC 113

 0.00

Features

  • Software based design
  • ‘Block on Start’ feature provides very
  • accurate overload protection
  • Definite time over load protection
  • Locked rotor current protection
  • Single phasing protection
  • Wide setting ranges
  • Draw -out case

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.

Application:

The relay provides Over load protection of AC motors driving conveyors, crushers, machine tools, compressors, fans etc.

20 in stock

Description

Ratings

Current rating ( In ) 1A / 5A
Aux. Supply 1) 20 to 60V DC
2) 75 to 150V AC / DC
3) 175 to 300V DC
185 to 250V AC

Settings:

Current setting ranges O/c 50 to 200% in steps of 10%
Locked rotor current 50 to 800% of rated current in steps of 50%
Block on Start time setting range (T1) 5 to 35 seconds in steps of 2 sec.
O/C withstand time setting range (T2) 1 to 16 seconds in steps of 1 sec.
Locked rotor withstand time setting range (T3) 0.5 to 4 seconds in steps of 0.25 sec.

Accuracy:

Accuracy of time setting ± 5 with a minimum error of ±50m secs.

Burden:

current input 0.2VA Per phase (at Rated 5A)
0.05VA per Phase (at Rated 1A)
Aux. supply Less than 8W ( Non operated)
Less than 10W (Operated)

Contact Ratings:

Trip / Alarm 10A at 24V DC / 230V AC

Contact Durability:

Unloaded contact 1,000,000 Operations
Loaded contact 100,000 Operations

Insulation:

  1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec . Between all terminals and earth.
  2. 1 KV RMS, 50 Hz for 1 minute across open contacts .

Mechanical Design :

Weight 2500 gms. (approx)
Case Size Fascia 144sq mm, depth 232mm
Installation Flush mounting
Panel cutout 138mm x 138mm

Standard Compliance:

Accuracy test IEC 60255-3
Insulation test IEC 60255-5

Terminal Diagram:

Card image cap

Ordering Information

Relay type JRC 113
Current rating 1A or 5A
Auxiliary Supply 20 to 60V DC or
75 to 150V AC/ DC or
175 to 300V DC (185 to 250V AC)

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