DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

OVERVIEW

    Features

  • Software based design
  • Wide auxiliary supply
  • Low burden

Application:

The relay provides over current protection of Generators,Motors, Transformers, Capacitors, Feeder etc.

DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

Principle of Operation:

JRC 932 provides earth fault protection for power systems. Relay operating time is determined by the set definite time. The relay measures the
current from the 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 the testing of relay contacts for the trip and alarm circuits.

 

SPECIFICATIONS

Ratings:

Current rating

:

1A / 5A

Auxiliary Supply

 

:

20 to 60V DC
80 to 260V AC / DC

     

Settings:

O/C setting

:

50 to 125% in steps of 5 %

Definite time setting

:

0.1 to 25s in steps of 0.1s

Over Load Rating:

Current input

:

2 times Rated continuous
20 times Rated for 3s
40 times Rated for 1s

     

Burden:

Current input

:

0.2VA at Rated 5A
0.05VA at Rated 1A

Aux. Supply

:

Less than 3W (Non Operated)
Less than 5W (Operated)

     

Accuracy:

Operating value

:

±5%

Operating Time

:

± 5% or ±20ms

Instantaneous time

:

Less than 40ms

Reset time

:

200 to 250ms

     
 
 

Contact Ratings:

Contact 1 (Trip)

:

10A at 24V DC / 230V AC

Contacts 2 & 3

:

5A at 24V DC / 230V AC

     

Contact Durability:

Unloaded contact

:

1,000,000 Operations

Loaded contact

:

100,000 Operations

 

Standard Compliance:

Accuracy test

:

IEC 60255-3

Insulation test

:

IEC 60255-5

     

Mechanical Design:

Weight

:

App. 550g

Case Size Fascia

:

96 mm sq, depth 105mm

Installation

:

Flush mounting

Panel cutout

:

92x92 mm

     
 

DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

DOWNLOADS

DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

 

ORDERING INFO.

Ordering Information:

Relay type

:

JRC 912

Current rating

:

1A / 5A

Auxiliary Supply

:

20 to 60V DC
80 to 260V AC / DC

 

DEFINITE TIME SINGLE POLE OVER CURRENT RELAY JRC 912

 

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