This is the 24V variant of the 24V 8 Channels Relay, Module High and Low, Triggering Optocoupler, Isolation Relay Module, PLC Signal Amplifier, Board in Relay Modules. Available at Original price was: ₹1,583.56.₹1,433.70Current price is: ₹1,433.70. (₹1,215.00 + GST) with free shipping across India.
PRODUCT DESCRIPTION
This is a 24V 8 Channels Relay Module High and Low Triggering Optocoupler Isolation Relay Module PLC Signal Amplifier Board. The Module is used to control various appliances and other equipment with a large current. It can be controlled directly by a Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). 24V 8-Channel Relay interface board and each one needs 50-60mA Driver Current. Equipped with high-current relay, AC250V 10A ; DC30V 10A.
Application:
- Supports all MCU control.
- The industrial field.
- PLC control.
- Smart home control.
Features:
- .Modbus serial communication
- Relay switching output
- Convenient AT command control
Specification:
- Product Name:8 Channels Modbus Relay Module
- Working Voltage: DC 24V
- Working Current:1A
- Work Temperature:-25℃~85℃
- Work Humidity:5%~95%RH
Package Includes:
1 x 24V 8 Channels Relay Module High and Low Triggering Optocoupler Isolation Relay Module PLC Signal Amplifier Board
24V 8 Channels Relay, Module High and Low, Triggering Overview
This 24V 8-Channel Relay Module is an optocoupler-isolated interface board designed for high-current switching. It provides both high and low level triggering and supports Modbus serial communication, making it ideal for PLC signal amplification and microcontroller-based automation.
Key Features of 24V 8 Channels Relay, Module High and Low, Triggering
- Eight independent relays rated AC250V 10A and DC30V 10A for robust load control
- Optocoupler isolation on each channel to protect MCU/PLC from voltage spikes
- High-level and low-level trigger inputs, compatible with Arduino, PIC, ARM, MSP430 and TTL logic
- Modbus serial communication with AT command support for easy integration
- Low driver current per channel (50–60 mA) and wide operating temperature (-25℃–85℃)
- Fast shipping from Zbotic – get genuine modules delivered swiftly across India
Applications and Use Cases
- PLC-based machine control in industrial automation lines
- Smart home systems for lighting, HVAC and security device control
- Remote switching of motors, solenoids and pumps
- Signal amplification between low-power controllers and high-current loads
- Integration in SCADA/Modbus networks for centralized monitoring
How to Use 24V 8 Channels Relay, Module High and Low, Triggering
Begin by supplying 24V DC to the module’s VCC and GND terminals, then wire your load to the corresponding relay COM/NO/NC contacts. Connect your microcontroller or PLC TX/RX lines to the module’s serial pins, configure the desired baud rate, and send Modbus AT commands or TTL trigger signals to switch relays on or off. Ensure common ground and verify trigger levels before operation.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What communication interface does this relay module use?
This module uses Modbus serial communication with built-in AT command support, allowing you to control relays via standard RS-485/TTL lines from any compatible PLC or microcontroller.
Can the relays handle inductive loads like motors or solenoids?
Yes. Each relay is rated for AC250V 10A and DC30V 10A, making them suitable for switching inductive loads such as small motors, solenoids and pumps when proper flyback diodes or snubber circuits are used.
How much current does each channel draw when activated?
Each channel’s optocoupler input draws approximately 50–60 mA from the 24V supply when the relay coil is energized, ensuring reliable activation with minimal power overhead.
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Read More →Technical Specifications
| Operating Voltage | 24V |
|---|---|
| SKU | AI3255 |
| Weight | 0.31395 kg |
| Availability | In Stock |
Applications & Use Cases
The 24V 8 Channels Relay, Module High and Low, Triggering Optocoupler, Isolation Relay Module, PLC Signal Amplifier, Board is a versatile relay modules used across a wide range of applications including home automation, industrial control, IoT projects, Arduino/Raspberry Pi interfacing, and motor control.
Common use cases:
- Switching high-voltage AC appliances with a microcontroller
- Building a smart home relay board
- Automating irrigation pumps in agriculture
This product is ideal for electronics engineers, IoT developers, and automation hobbyists.
Technical Tip: Use optocoupler-isolated relay modules to protect your microcontroller. Match relay coil voltage to your MCU logic level (3.3V or 5V).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
