Sai Creations

SINGLE POLE OVER CURRENT RELAY JRC 032

 0.00

Features

  • Software based design
  • Wide setting range
  • Wide auxiliary supply
  • Low burden

Principle of Operation:

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

Application:

The relay provides earth fault protection of Generators,Motors, Transformers, Feeder etc., and where definite time protection is required.

20 in stock

Description

Ratings

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

Settings:

JRC 012 O/C setting 50 to 200% in steps of 10 %
JRC 032 O/C setting 25 to 400% in steps of 25 %
or 50 to 800% in steps of 50%
Definite time setting 0 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 per phase (Rated 5A)
0.05VA per Phase (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

Contact Ratings:

Relay rating 10A at 24V DC/230V AC

Contact Durability:

Weight 2000 gms. (approx)
Case Size 144sq mm, depth 232mm
Installation Flush mounting
Panel cutout 138mm x 138mm

Mechanical Design :

Weight 2000 gms. (approx)
Case Size 144sq mm, depth 232mm
Installation Flush mounting
Panel cutout 138mm x 138mm

Insulation

  1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec . Between all terminals and cases as per IEC 602555.
  2. 1KV RMS, 50 Hz for 1 minute across open contacts as per IEC 602555

Insulation:

  1. 1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec .
  2. Between all terminals and cases .

  3. 1 KV RMS, 50 Hz for 1 minute across open contact

Standard Compliance:

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

Ordering Information

Relay type JRC 012 JRC 032
Current rating 1A / 5A
Auxiliary Supply 20 to 60V DC
75 to 175V AC / DC
175 to 300V DC
185 to 250V AC

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