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6PCS 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board

4.8 (2) Write Review
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$9.99

$ 4 .99 $4.99

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About this item

  • 1 channel 3V/3.3V power relay module support photocoupler isolation control; The external connection adopts rotary crimping terminal to make the connection more firm.
  • The module can used to control 10A 250V AC, 10A 30V DC load, with output signal indicator. Adopt dual power supply selection design to enhance anti-interference ability. Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit.
  • The signal input port can be connected to the single-chip IO port, driven by high-level signals.
  • You are free to select whether the relay and the signal share the same power supply or not by removing the jumper caps on the pins or not. It is recommended to share the same power supply, because that is more convenient for using.
  • The relay isolation drive control module, the core is an electronic control device relay, with a control system (also known as an input loop) and a controlled system (also known as an output loop), which is essentially a "automatic switch that uses a smaller current to control a larger current" ".


Product Description

Interface Description:

1 Channel DC 3V Relay

Power interface:

VCC: Connect to the positive pole of the power supply (3.3V)

GND: Connect to the negative pole of the power supply

IN: high level control relay pull-in

Load interface:

NO: Normally open interface of the relay, the relay is suspended before pull-in, and shorted to COM after pull-in

COM: Relay common interface

NC: Normally closed interface of the relay, the relay is short-circuited with COM before pull-in, and hangs up after pull-in

Specifications

Working Voltage: DC 3V/3.3V
Load: 10A 250VAC / 10A 30VDC
Working Current: 65mA
Trigger Current: 3mA
Load Current: 10A max
Single Socket Length: 7.5mm
Response Time: <20ms
3V 1 Channel Relay

Product Features:

  • With output signal indicator.
  • The signal input port can be connected to the single-chip IO port, driven by high-level signals.
  • Dual power supply design, strong anti-interference ability, photoelectric isolation protection and high reliability.
  • Onboard 3V, 10A/250VAC; 10A/30V DC relay. Can be continuously attracted 100,000 times, with diode discharge protection, short response time.
  • The external connection adopts rotary crimping terminal to make the connection more firm.
  • With fixed mounting holes for easy installation.
  • 3V 1 Channel Relay Power Switch with Opto Isolation High Level Trigger
  • Optocoupler Isolator - 3V/3.3V power relay module supports photocoupler isolation control.
  • Long Life - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection.
  • High Level Trigger - The relay module is triggered by a high-level signal(1.3V), which can be input from microcontroller IO.

Michel Morin
2025-07-09 14:04:42
work well with my project
Adrian Fernandez
2025-04-10 11:23:06
Was testing the relay and connected VCC to 3V, GND to G, and IN to an open GPIO pin and did not even have a load or any circuit connected to the other side and the relay started making noises and light was being strange. I double checked all connections to make sure it was right and they were. Then it did not work anymore, and board got bricked. Now i have to buy a new ESP8266. Pretty sure there was some shorting in the relay.