Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme Without module frame 12V

8 Channel Relay Module 30A Optocoupler Isolation 5V 12V 24V

Without module frame / 12V
$66.89
$66.89 $81.94
Skip to product information
Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme Without module frame 12V
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme Without module frame 12V
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme Without module frame 12V
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
  • Eight 8 Channel Relay Module 30A with Optocoupler Isolation 5V 12V 24V Supports High and Low Triger Trigger for Smart Home Qme
8 Channel Relay Module 30A Optocoupler Isolation 5V 12V 24V

8 Channel Relay Module 30A Optocoupler Isolation 5V 12V 24V

$66.89
$66.89 $81.94
Color
Cable length

8 Channel Relay Module – 30A Optocoupler Isolation | 5V / 12V / 24V

Take full control of your automation projects with this 8 Channel Relay Module from Qme. Designed for makers, hobbyists, and professionals alike, this module delivers reliable switching power with robust optocoupler isolation to protect your microcontroller and connected circuits. Whether you're building a smart home system, automating industrial equipment, or running DIY electronics projects, this relay board offers the versatility and performance you need.

Key Features

  • 8 Independent Relay Channels — Control up to 8 separate circuits simultaneously with ease.
  • 30A High-Current Capacity — Each relay handles up to 30 amperes, making it suitable for a wide range of loads.
  • Optocoupler Isolation — Electrical isolation between the control and load sides protects your microcontroller (Arduino, Raspberry Pi, PLC, etc.) from voltage spikes and interference.
  • Wide Voltage Compatibility — Supports 5V, 12V, and 24V trigger voltages to suit virtually any control system.
  • High & Low Trigger Support — Configurable for both active-high and active-low trigger signals for maximum flexibility.
  • Status LED Indicators — Individual LEDs for each channel provide instant visual feedback on relay status.
  • Screw Terminal Connections — Secure, tool-assisted wiring for dependable, vibration-resistant connections.
  • Compact & Stackable Design — Easy to mount in enclosures or on DIN rails for clean installations.

Specifications

  • Number of Channels: 8
  • Maximum Load Current: 30A per channel
  • Trigger Voltage: 5V / 12V / 24V DC
  • Isolation Type: Optocoupler
  • Trigger Mode: High & Low level trigger
  • Compatible With: Arduino, Raspberry Pi, PLC, and other microcontrollers
  • Color Options: Available in 2 colors

What Can You Control With It?

This relay module is ideal for automating lights, appliances, motors, solenoid valves, HVAC systems, irrigation controllers, and much more. It integrates seamlessly with popular development platforms such as Arduino, Raspberry Pi, and ESP8266/ESP32-based smart home setups.

Safe & Reliable Switching

The built-in optocoupler isolation creates a clean electrical barrier between your low-voltage control signal and the high-power output side. This means your sensitive microcontroller electronics stay protected from electrical noise and back-EMF, ensuring long-term reliability in demanding environments. Learn more about electrical safety standards at OSHA's Electrical Safety Resource.

Frequently Asked Questions

Q: What microcontrollers are compatible with this 8 channel relay module?

A: This 8 channel relay module is compatible with a wide range of microcontrollers including Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, PLC systems, and any other controller capable of outputting a 5V, 12V, or 24V digital signal. Both active-high and active-low configurations are supported.

Q: What is the maximum current this relay module can handle per channel?

A: Each of the 8 relay channels on this module supports up to 30 amperes of load current, making it well-suited for controlling high-power devices such as motors, lighting systems, heating elements, and large appliances.

Q: Why is optocoupler isolation important in a relay module?

A: Optocoupler isolation creates an electrical barrier between your control circuit (e.g., a microcontroller) and the relay's switching side. This prevents voltage spikes, surges, and electrical noise from the load side from damaging your sensitive control electronics, significantly improving the safety and longevity of your system.

Q: Can this relay module be used for smart home automation?

A: Yes! This 8 channel relay module is a popular choice for DIY smart home projects. Paired with an ESP8266, ESP32, or Raspberry Pi running home automation software, it can control lights, fans, outlets, and other devices remotely or on a programmed schedule.

You may also like