Motor Protection Relay JRC 113

OVERVIEW

    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

Application:

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

MOTOR PROTECTION
RELAY JRC 113

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.

 

SPECIFICATIONS

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 Rating:

TRIP / ALARM Rating

:

10A at 24V DC/230V AC

 

 

 

Contact Durability:

Loaded contact

:

10,000 operations min.

Unloaded contact

:

100,000 operations min.

 

 

 

 
 
 
 
 

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

:

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:

 
 
 

MOTOR PROTECTION
RELAY JRC 113

DOWNLOADS

MOTOR PROTECTION RELAY JRC 113

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

MOTOR PROTECTION
RELAY JRC 113

 

ORDERING INFO.

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)

 

MOTOR PROTECTION
RELAY JRC 113

 

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