DIGITAL TIME DELAY RELAY JRT 125

OVERVIEW

    Features

  • Wide setting range
  • Bright 7-Segment LED display
  • Wide auxiliary supply
  • Hand / Self reset type selection

Application:

Digital time delay relay is used to provide delay in a circuit

DIGITAL TIME DELAY RELAY JRT 125

Principle of Operation:

The relay can be configured in one of three programmable modes designated as “0100”, “0200”, “0300”. The difference in the functioning of DTDR when configured in the above mentioned modes is restricted to the manner in which its (NO) contacts of DTDR are reset.

DTDR, after sensing the operation (NO -> C) of a potential free contact (Timer Initiation Contact) connected to its terminals [6,7], starts decrementing its “relay operation timer” from an initial value. The initial value of the “relay operation timer” corresponds to “time delay setting”. After “relay operation timer” counts down to “0”. DTDR operates its NO contacts.

DTDR reset operation in mode - “0100”:
“0100” mode corresponds to “Hand Reset” mode. The NO contacts of the DTDR will remain in operated state until further human intervention. Following the operation (NO - > C) of DTDR contacts, DTDR can be reset by pressing “RESET” (RST) switch on the DTDR.

DTDR reset operation in mode - “0200”:
“0200” mode corresponds to “TYPE-1 Self Reset” mode. Following the operation (NO -> C) of DTDR contacts, a “self reset timer” will start decrementing from a value equal to “Reset time delay”. When this “self reset timer” reaches its terminal count ('0'), DTDR is reset.

DTDR reset operation in mode - “0300”:
“0300” mode corresponds to “TYPE-2 Self Reset” mode. Following the operation (NO -> C) of DTDR contacts, DTDR transits to a wait state where it waits for the “Timer Initiation Contact” across [6,7] to change its state from “closed state TO Normally open state”. When “Timer Initiation Contact” across [6,7] changes state from “closed state TO Normally open state”, a “self reset timer” will start decrementing from a value equal to “Reset time delay”. When this “self reset timer” reaches its terminal count ('0'), DTDR is reset.

 

SPECIFICATIONS

Ratings:

Auxiliary Supply

:

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

     

Settings:

Time delay setting

:

10 to 9990ms in steps of 10ms

Reset time setting

:

10 to 9990ms in steps of 10ms

Mode of operation

:

0100 – Hand reset
0200 – TYPE-1 SELF RESET MODE
0300 – TYPE-2 SELF RESET MODE

Burden:

Aux. Supply

:

Less than 4W (Non Operated)
Less than 5W (Operated)

     

Accuracy:

Operating time

:

± 0.5% or ± 20msec

     

Contact Ratings:

Output Contacts

:

5A at 24V DC / 230V AC

Contact

:

2NO / 4NO

     
 

Contact Durability :

Unloaded contact

:

1,000,000 Operations

Loaded contact

:

100,000 Operations

     

Mechanical Design :

Weight

:

Appx. 500 gms

Case Size

:

96 mm sq, Depth 105mm

Installation

:

Flush mounting

Panel cutout

:

92x92 mm

     

DIGITAL TIME DELAY RELAY JRT 125

DOWNLOADS

DIGITAL TIME DELAY RELAY JRT 125

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

DIGITAL TIME DELAY RELAY JRT 125

 

ORDERING INFO.

Ordering Information:

Relay type

:

JRT 125 – 2NO
JRT 145 – 4NO

Aux supply

:

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

 

DIGITAL TIME DELAY RELAY JRT 125

 

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