5V 1/2/4/6/8-Channel Relay Module with Optocoupler – Trigger Switch Relay Board for Arduino
5V 1/2/4/6/8-Channel Relay Module with Optocoupler – Trigger Switch Relay Board for Arduino
The 5V Relay Module is a high-performance, optocoupler-isolated switching board available in 1, 2, 4, 6, or 8-channel configurations. It allows microcontrollers like Arduino, Raspberry Pi, ESP8266, and others to control high-voltage devices (AC or DC) safely and reliably.
Each relay is driven by a transistor circuit and isolated with an optocoupler, providing protection to your low-voltage control system from potential voltage spikes. With standard TTL logic compatibility (5V trigger) and onboard indicator LEDs, it's easy to interface and debug.
This module is ideal for automation, IoT, home control systems, and industrial applications where switching high-power devices is needed through low-voltage logic signals.
🔧 Key Features:
Operating Voltage: 5V DC
Channel Options: 1, 2, 4, 6, or 8 relays per module
Relay Type: SPDT (Single Pole Double Throw)
Trigger Voltage: 5V TTL signal (active low or high, depending on version)
Isolation: Built-in opto-isolators for each channel to protect microcontrollers
Load Support:
AC: 250V @ 10A max
DC: 30V @ 10A max
Indicator LEDs: Status indicators for each relay channel
Terminal Blocks: Screw terminals for easy connection to AC/DC loads
Mounting Holes: For easy installation in enclosures or panels
Compatibility: Fully compatible with Arduino, Raspberry Pi, STM32, ESP32, etc.
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How to Request a PCB Layout/Design:
- Send your complete schematic or diagram via our Facebook page.
- We will assess your diagram and provide a quotation based on the complexity and requirements.
PCB Layout & Design Rules:
- All diagrams must be clear and properly labeled.
- Specify the desired board size, number of layers, and component types if applicable.
- Rush requests may incur additional charges.
- We do not accept hand-drawn or incomplete schematics.
- Files will be delivered in Gerber and/or PDF format as requested.
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