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GAEYAELE GRT8-S1 Asymmetric Cycle Timer Relay
Applications
- It is used for regular room ventilation, cyclic dehumidification, light control, circulating pumps, noon signs, etc.
Function Features
- Time Functions: Cycler beginning with pulse or Cycler beginning with pause.
- Function choice is done by an external jumper of terminals S-A1.
Technical parameters
- Rated Control Voltage: AC/DC 12V-240V
- Output Contact Rating:16A 250VAC/24VDC
- Output Contact: 1xSPDT
- Power Source: AC/DC
- Usage: General Purpose
- Rated Frequency: 50/60Hz
- Time Range: 0.1s-100days
- DIN rail mounting
LED Indicator
- Relay Status: Its working status is indicated by the LED indicator.
- LED Light: The green light is power indicator and the red light is work indicator.
Simple Panel
- Instructions: Comfortable and well-arranged function and time-range setting by rotary switches.
- Rotary Knobs: The first knob “S” stands for second, ”M” stands for minute, “H” stands for hour, “D” stands for day. The second knob is percentage setting from 10% to 100%
Wiring Port
- Max.cable size(mm²): solid wire max.1×2.5mm² or 2×1.5mm²（AWG 12）
- Output: 1×SPDT or 2×SPDT
- Current rating: 16A (AC1)
- Switching Voltage: 250VAC/24VDC
Rail Mounting
- Product Size: Ultra-small size, only 18mm width, 35mm rail mounting.
- Weight:1×SPDT:62g/2×SPDT: 82g
GRT8-S: one group or two groups of contacts working in a cycle at the same time
OVERRULED
2025-08-13 11:57:51
great unit to have on hand for many applications.. voltages it works on is very diverse so very useful for may applications or just to have on hand for emergency hvac repair etc
Don
2025-08-11 20:17:46
Works great, would buy again.
ryan strider
2025-07-01 15:52:42
Worked perfectly for what I needed which was to turn a 12V solar water pump on every day and off after 4 hrs hours. Solar pump has a battery to keep this on after the sun sets.
Joseph CASPER
2025-05-20 15:33:27
Operates on almost any Voltage, Easy to set up.. Used to turn device on for X amount of time then Wait X amount of time and repeat. 1000's of uses.
Brian
2025-05-06 18:42:34
funn toy
Phred Phish
2025-04-25 10:28:54
My furnace / heat pump has a pad-type humidifier that flows water through a mesh pad while the heat is on. It wastes gallons of water per day.I installed this timer between the furnace and humidifier solenoid valve, and set it to let the water run for one minute to wet the pad, then 5 minutes off to let the water evaporate into the air. Maintains humidity fine with this timing.
Thomas Ebacher
2025-04-10 09:40:51
Keep in mind that this asymmetric cycle timer controls switches, it does not feed thru power to the switches. So, when wiring your device, you need to connect power wires to the switch side contacts if you want power applied. This device worked perfectly for me once I figured that out. It controls cycle timing perfectly.
Thomas Smith
2025-03-29 16:39:17
I used this to replace and old mechanical hold fire timer for a coal stoker. This was recommended on a stoker forum and so far has been working great for me for 4 months!
Jacek
2025-02-19 12:18:30
Great and simple switch. This relay is a perfect solution for my low yield well. My well jet pump turns on and off as desired to top up my pressure tank. No more pump priming for no reason. Thumbs up!
Customer
2025-02-14 13:23:03
great timer switch for pump system
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