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Double Delay Time Relay GRT8-2T

For gradual switching of heavy powers (e.g. el.heating), prevents current strokes in the main.

SKU GRT8-2T Category


Double Delay Time Relay

GEYA Double Delay Time Relay is for gradual switching of heavy powers like heating and prevents current strokes in the main.

It has protection and monitoring of motors with integrated PTC thermistor temperature sensors. It has a range of phase loss and phase failure monitoring relays.

GEYA Double Delay Time Relay has motor monitoring for heavy starting, high switching frequency, single phase operation, high ambient temperature, and insufficient cooling.

It has solid state thyristor output, simple two wire connection, and flame-retardant housing.

GEYA Double Delay Time Relay has a professional range of single and three phase supply monitors that are feature rich for industrial and agricultural use.

The range covers phase loss/phase reversal and phase unbalance. It is available with under and over voltage, adjustable time delay, LED indications and base DIN rail mounting.


  • For gradual switching of heavy powers (e.g. el.heating), prevents current

strokes in the main.


  • 2x Delay ON (2 time relays in one)
  • Time scale 0.1s – 10 days divided into 10 time ranges:

0.1s – 1s / 1s – 10s / 0.1min – 1min / 1min – 10min / 0.1h – 1h /  1h – 10hrs

/ 0.1 day – 1 day / 1 day – 10 days / ON /  OFF.

  • Times t1 and t2 are independently adjustable.
  • t1 and t2 are switched on after supply voltage connection
  • Relay status is indicated by LED.
  • 1-MODULE, DIN rail mounting.


Technical parameters GRT8-2T
Function 2x Delay ON
Supply terminals A1-A2
Voltage range AC/DC 12-240V(50-60Hz)
Burden AC 0.09-3VA/DC 0.05-1.7W
Voltage range AC 230V(50-60Hz)
Power input AC max.6VA/1.9W
Supply voltage tolerance -15%;+10%
Supply indication green LED
Time Ranges 0.1s-10days,ON,OFF
Time setting potentiometer
Time deviation 10%-mechanical setting
Repeat accuracy 0.2%-set value stability
Temperature coefficient 0.05%/℃,at=20℃(0.05%℉,at=68℉)
Output 2×SPDT
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+55℃(-4℉to131℉)
Storage temperature -35℃ to+75℃(-22℉to158℉)
Mounting/DIN rail Din rail EN/IEC 60715
Protection degree IP40 for front panel/IP20 terminals
Operating position any
Overvoltage category III.
Pollution degree 2
Max.cable size(mm 2) solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
Tightening torque 0.4Nm
Dimensions 90×18×64mm
Weight W240-82g,A230-82g
Standards EN 61812-1,IEC6947-5-1

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