Specifications

• Product: Multi channel relay module
• Type: Optocoupler Isolated Relay Module
• Channels: 1 / 2 / 4 / 6 / 8 (Variation)
• Trigger Voltage: 5VDC or 12VDC
• Trigger Current: ~20mA per channel
• Load Capacity: 10A 250VAC / 10A 30VDC
• Relay Model: SRD-05VDC-SL-C / SRD-12VDC-SL-C
• Isolation: Optocoupler + 1500V
• Control Signal: High/Low Level (Jumper Selectable)
• Indicator: 1 LED per channel
• Mounting Holes: M3 screw holes
• Quiescent Current: <5mA (idle)
• Response Time: <10ms
• Operating Temperature: -40°C to +85°C
• Contact Material: Silver Alloy

Dimensions by Variation:

• 1 Channel: 43mm x 17mm x 18mm
• 2 Channel: 50mm x 38mm x 18mm
• 4 Channel: 73mm x 54mm x 18mm
• 6 Channel: 105mm x 53mm x 18mm
• 8 Channel: 138mm x 53mm x 18mm

Features

• Multi Channel Relay Module
• Flexible Channel Options: Available in 1, 2, 4, 6, or 8 channels to match your project scale.
• Optocoupler Isolation: Full electrical separation between control and load for maximum safety.
• Dual Voltage Trigger: Supports both 5V and 12V input signals – works with Arduino, ESP32, Raspberry Pi.
• High Load Capacity: Each relay handles 10A at 250VAC or 30VDC – ideal for lights, motors, appliances.
• LED Status Indicators: Visual feedback for each channel’s ON/OFF state.
• High/Low Level Trigger: Configurable trigger mode via jumper for versatile control.
• Durable Relays: Songle or equivalent relays with >100,000 cycle lifespan.
• The Multi-Channel Optocoupler Relay Module is your all-in-one solution for controlling high-power devices safely from low-voltage microcontrollers. Whether you need to switch a single light or orchestrate a full smart home system, choose from 1, 2, 4, 6, or 8 channels – all built on the same reliable platform.
• Each channel features full optocoupler isolation, protecting your Arduino, ESP8266, or Raspberry Pi from dangerous voltage spikes. Trigger with 5V or 12V signals, and configure high or low-level trigger using onboard jumpers. The 10A-rated relays handle everything from LED strips to washing machines, fans, and industrial solenoids.
• Bright LED indicators show real-time status, while screw terminals ensure secure, vibration-resistant connections. Compact sizes scale with channel count – from pocket-sized 1-channel to robust 8-channel boards with mounting holes for enclosures.
• Perfect for home automation, IoT projects, robotics, security systems, and educational kits. Pair with NodeMCU for WiFi control, or use with PLCs in industrial setups. Over 100,000 switching cycles guaranteed. Backed by DuniaBD quality – order your variation today and automate smarter!

What is the price of Multi Channel Relay Module 1/2/4/6/8 Channels 5V 12V Optocoupler Isolated Arduino Relay Board for Automation in Bangladesh?

The latest price of Multi Channel Relay Module 1/2/4/6/8 in Bangladesh is Invalid Product ID. to Invalid Product ID. taka for 1Pcs Relay Module with Selective Channel. You can buy this Product at better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.

Buy Multi Channel Relay Module 1/2/4/6/8 Channels 5V 12V Optocoupler Isolated Arduino Relay Board for Automation in Bangladesh from online at Dunia.com.bd.

In Bangladesh, you can get original Multi Channel Relay Module 1/2/4/6/8 From Dunia.com.bd . We have few collection of latest Relay Module to purchase. Order Electronic Modules Online at our website Or Visit our warehouse to get your product at lowest price.

10 FAQ

1. What is the difference between 1, 2, 4, 6, and 8 channel versions?
   Only the number of relays and board size differ – all share identical specs per channel.
2. Can I control it with Arduino?
   Yes! Connect IN pins to digital outputs. Use 5V for Arduino, 12V for industrial boards.
3. Does it support high and low level trigger?
   Yes – set via jumper. Default is high-level (pull to GND to activate).
4. What is the maximum load per relay?
   10A at 250VAC or 30VDC. Do not exceed – use contactors for higher loads.
5. Is optocoupler isolation safe for 220V AC?
   Absolutely. Full isolation prevents shocks and protects MCU.
6. How to wire the load?
   NO (Normally Open) for default-off, NC for default-on. COM is common terminal.
7. Can I power all channels from one supply?
   Yes – VCC/GND is shared. Use adequate PSU (e.g., 5V 2A for 8 channels).
8. Are LEDs for status or power?
   One LED per relay shows activation. Separate power LED on some models.
9. What relay brand is used?
   Songle SRD series or equivalent – UL/CE certified.
10. Is it suitable for IoT (ESP8266/NodeMCU)?
    Perfect! Low current draw, 3.3V-tolerant with level shifter if needed.