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Digital Setting Time Relay GRT8-K1

Multifunctional time relay with digital settings can be used for industrial equipment, lighting control, heating element control, motor, and fan control. It has four delay modes and the delay range covers 0.1 seconds to 99 hours.



SKU GRT8-K1 Category



  • Four functional modes can be set.
  • Through digital dialing settings, it is easy to operate and set more precisely.
  • Extra-wide delay range, 0.1 seconds – 99 hours can be set.
  • With AC/DC 12V-240V ultra-wide operating voltage specifications are optional.
  • The working state of the relay is indicated by the LED indicator.
  • Ultra-small size, only 18mm width, 35mm rail installation.



Function A,B,E,F,
Supply terminals A1-A2
Voltage range AC/DC 12-240V(50-60Hz)
Burden AC0.09-3VA/DC0.05-1.7W
Voltage range AC 230V(50-60Hz)
Power input AC max.6VA/1.3w AC max.6VA/1.9w
supply voltage tolerance -15%;+10%
supply indication green LED
Time ranges 0.1s-99h,ON,OFF
Time setting Digital switch
Time deviation ≤1%
Repeat accuracy 0.2%-set value stability
Temperature coefficient 0.05%rC,at=20°C(0.05%°F,at=68°F)
Output 1xSPDT 2xSPDT
current rating 1x16A(AC1) 2x8A(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℉to 131℉)
Storage temperature -35℃ to+75℃ (-22℉ to 158℉)
Mounting/DIN rail Din rail EN/IEC60715
Protection degree IP40 for front panel/IP20 terminals
operating position any
Overvoltage category
Pollution degree 2
Max.cable size(mm2) solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
Tightening torque 0.4Nm
Dimensions 90x18x64mm
Weight 1xSPDT : W240-64g,A230-64g 2xSPDT:W240-72g,A230-72g
Standards EN61812-1,IEC60947-5-1

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