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Specifications:
- Trigger Current: 2 - 5mA
- Trigger Voltage (LOW): 0 - 1.5V
- Trigger Voltage (HIGH): 2.5 - 5V
- Insulation Resistance: 100MΩ (500VDC)
- Action Time (Under Rated Voltage): Less Than 10ms
- Release Time (Under Rated Voltage): Less Than 5ms
- Power Indicator (Green), Relay Status Indicator (Red)
- Friendly Interface Design. All Interfaces Can Be Connected Directly Via Terminal Wiring Leads.
Parameter:
- Channel: 4 Channel
- Working Voltage: DC 12V
- Normally Opened Compatible Load: 10A 250VAC / 15A 125VAC / 10A 30VDC
- Quiescent Current: 5mA Maximum Current: 190mA
Input Interface:
- DC+: Connect to Power Positive (According To the Relay Voltage Range)
- DC-: Connect to Power Negative
- IN: Relay Module Trigger Pin (High or Low Level Trigger Optional)
Output Interface:
- Normally Opened (NO) : Normally Open Pin , NO Pin is Connect to COM Pin When Relay On
- Common Pin (COM) : Common Pin of Relay
- Normally Closed (NC) : Normally Close Pin , NC Pin is Connect to COM Pin When Relay Off.
High/Low Level Trigger:
- 1. Low Level Trigger When Jumper and L Short Circuit
- 2. High Level Trigger When Jumper and H Short Circuit
Gene Kempf
2025-09-02 17:18:36
Works as advertised. I do like the ability to change the control input from either a hi or lo signal to control the relays. Most only work with a hi control input.
James B. Crawford
2025-07-18 10:49:20
Found these on Amazon to go with the Elegoo UNO R3 controller. The set that came in the "starter kit" had pins to activate the relays and that didn't seem to secure. These have screw terminals. These also have a high/low activation setting so you can switch the high/low back and forth. I would suggest that if you need relays, these will be a better choice.
G. cone
2025-06-05 14:13:12
Always handy to have on hand.
The Kraken Unbound
2025-06-03 13:11:12
These work great for opening and closing garage doors remotely. Anything that uses a push button momentary switch. Paired with a Raspberry or Arduino and some python code and you are in business.
Juan Aguilera
2025-05-30 16:16:11
I use these relays circuit ti control air suspension solenoids on a motorcycle....They handle pretty good and did not see any fail.I used these circuit to keep everything tightter and compact as possible
Kristin H.
2025-02-19 12:37:16
This relay board has a small footprint yet includes the all-important jumpers to select high or low trigger input. This will save you the headache of changing your circuit and only cost a little extra. The small Screw terminals are kind of average among brands. They are undersized for the wire size that fits compared to the amperage rating on the relay.
Kathleen McCune
2025-01-26 11:00:05
The board performed as expected. It was quite simple to figure out how the board works, and how to make the necessary connections.
DCFiii
2025-01-19 18:33:43
Did a check on the relay and all 4 relays appeared to function using high or low signal trigger(audible and LED check only, no continuity test). Both boards were fine. Relays were not theones shown in the listing but are the same I've received on other similar boards [ Songle ].
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