GRT8-ST Modular Time Relay

GRT8-ST modular time relay is designated for delay ON of motors star/delta.

  • Time t1 (star) :
    time scale 0.1 s – 10min divided into 4-time ranges
    rough time setting by rotary switch.
  • Time t2 (delay) :
    time scale 0.1 s – 1 s
    time setting by the potentiometer.
  • Relay status is indicated by LED.
  • 1-MODULE, DIN rail mounting.

Product Selection

Function Delay ON star/delta
Voltage range AC/DC 12-240V(50-60Hz)
Output 2*SPDT

Technical Data

Supply terminals A1-A2
Burden AC 0.09-3VA/DC 0.05-1.2W
Power input AC max.6VA/1.3W
Supply voltage tolerance -15% +10%
Supply indication Green LED
Time ranges Range of time relay:0.1s-10mins Switch time0.1s-1s
Time setting Potentiometer
Time deviation 10%-mechanical setting
Repeat accuracy 0.2%-set value stability
Temperature coecient 0.05%/ ℃,at=20℃ (0.05% ℉ at= 68 ℉ )
Current rating 16A(AC1)
Switching voltage 250VAC/24VDC
Min.breaking capacity DC 500mW
Output indication Red LED
Mechanical life 1*107
Electrical life(AC1) 1*105
Reset time Max.200ms
Operating temperature -20℃ to +50℃ (-4 ℉ to 131 ℉ )
Storage temperature -35℃ to +75℃ (-22 ℉ to 158 ℉ )
Mounting/DIN rail Din rail EN/IEC 60715
Protection degree IP40 for front panel/IP20 terminals
Max .cable size(mm) Solid wire max.1* 2. 5or 2* 1 .5 with sleeve max.1* 2. 5 (AWG 12)
Dimensions 90 *18 *64mm
Weight W240-82g,A230-80g
Standards EN 61812-1,IEC6947-5-1

Video

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