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Multifunction Time Relay GRT8-M1

Multifunction Time Relay GRT8-M1 can be used for electrical appliances, control of lights, heating, motors, pumps, and fans.



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SKU GRT8-M1 Category



GEYA multifunction time relay is a smart relay for easy adjustment of the control signals, with multi-time range, multi-functions, and multi-voltage input built-in.

GEYA multifunction time relay provides 10-time ranges and 10 functions for the customer’s purpose to control an event that is based on time.

It also has a universal input voltage version for AC/DC12-240V that can be a suitable different power supply.

GEYA multifunction time relay offers high functionality on a small footprint.

Due to the flat front panel, an easy-to-read LED display as well as operating elements adjustable by standard tools, the configuration is particularly straightforward.


Multifunction time relay can be used for electrical appliances, control of lights, heating, motors, pumps, and fans (10 functions, 10-time ranges, multi-voltage).

Function Features

  • 10 functions:

– 5-time functions controlled by supply voltage

– 4-time functions controlled by control input

– 1 function of latching relay

  • Comfortable and well-arranged function and time-range set by rotary switches.
  • Time scale 0.1 s – 10 days divided into 10 ranges.
  • Relay status is indicated by LED.
  • 1-MODULE, DIN rail mounting.

1.GRT8-M1 12v control 220V wiring diagram

2.GRT8-M1+GYHC-63 wiring diagram

3.sensor NPN+GRT8-M1 wiring diagram

4.sensor PNP+GRT8-M1 wiring diagram

Technical parametersGRT8-M1GRT8-M2
Supply terminalsA1-A2
Voltage rangeAC/DC 12-240V(50-60Hz)
BurdenAC 0.09-3VA/DC 0.05-1.7W
Voltage rangeAC 230V(50-60Hz)
Power inputAC max.6VA/1.3WAC max.6VA/1.9W
Supply voltage tolerance-15%;+10%
Supply indicationgreen LED
Time Ranges0.1s-10days,ON,OFF
Time settingpotentiometer
Time deviation10%-mechanical setting
Repeat accuracy0.2%-set value stability
Temperature coefficient0.05%/℃,at=20℃(0.05%℉,at=68℉)
Current rating16A(AC1)
Switching voltage250VAC/24VDC
Min. breaking capacity DC500mW
Output indicationred LED
Mechanical life1×107
Electrical life(AC1)1×105
Reset timemax.200ms
Operating temperature-20℃ to+55℃(-4℉to131℉)
Storage temperature-35℃ to+75℃(-22℉to158℉)
Mounting/DIN railDin rail EN/IEC 60715
Protection degreeIP40 for front panel/IP20 terminals
Operating positionany
Overvoltage categoryIII.
Pollution degree2
Max.cable size(mm 2)solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
StandardsEN 61812-1,IEC6947-5-1

GEYA GRT8-M Multifunction Time Relay Introduction


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