RS485/TTL Modbus-Rtu 1/2/4/8 Channel Relay Module — buy online in South Africa with stock-backed fulfillment from I Found Tech.
Product Overview
Onboard mature and stable 8bit MCU and MAX485 level conversion chip 2.
Communication protocol: support standard Modbus RTU protocol 3.
Communication interface: support RS485/TTL UART interface 4.
Communication baud rate: 4800/9600/19200, default 9600bps, support power-off save 6.
Optocoupler input signal range: D...
Category: Relay Module. Keywords: rs485, ttl, modbus, rtu, channel, relay, module.
Key Features & Benefits
- Module form factor for fast integration — solder, stack, or plug-and-play where applicable
- Galvanic isolation options for safe switching of loads from logic-level controllers
- Onboard mature and stable 8bit MCU and MAX485 level conversion chip 2.
- Communication protocol: support standard Modbus RTU protocol 3.
- Sourced via our Import from Chinese Warehouse program — quality-checked before dispatch
- Shipped from I Found Tech with local support and clear product documentation
Applications & Use Cases
- Home automation switching
- Industrial PLC adjunct circuits
- HVAC and lighting control
- Safe high-side / low-side load control
Available Configurations
Select the Style option that matches your build. Each variant is a dedicated SKU with its own stock level.
| Style | SKU | Availability |
|---|---|---|
| 1 channel | YXA620-10420 | In stock |
| 2 channel | YXA620-10421 | In stock |
| 4 channel | YXA620-25031 | In stock |
| 4 channel+Shell | YXA620-25033 | In stock |
| 8 channel | YXA620-25032 | In stock |
| 8 channel+Shell | YXA620-25034 | In stock |
Technical Specifications
| Brand / Store | I Found Tech |
|---|---|
| Manufacturer SKU | YXA620 |
| Product Type | Relay Module |
| Collection | Chinese Warehouse Import |
| Condition | New |
| Fulfillment | South Africa — Import from Chinese Warehouse |
Why Choose I Found Tech
I Found Tech helps customers access vetted electronic components without navigating overseas marketplaces alone. Our Chinese Warehouse Import range brings factory-catalog depth to a single trusted South African storefront — ideal for prototypes, production spin-ups, education, and service workshops.
- Transparent pricing with landed-cost clarity
- Broad SKU coverage for boards, modules, sensors, power, and mechanics
- Local support and order assistance
- SEO-documented listings with clear specifications per product
Frequently Asked Questions
Is this part ready to use?
Yes — RS485/TTL Modbus-Rtu 1/2/4/8 Channel Relay Module is supplied as a new relay module, suitable for immediate integration subject to your project requirements.
Why buy through I Found Tech?
We consolidate trusted factory lines through our Chinese Warehouse Import channel, offering transparent pricing and South African fulfillment.
Do you offer bulk or repeat orders?
Contact I Found Tech for volume pricing on repeat relay module orders. Stock levels shown online update from our warehouse feed.
Search & Discovery
Find this product under Chinese Warehouse Import and Import from Chinese Warehouse in our store navigation. Also indexed for: rs485, ttl, modbus, rtu, channel, relay, module, electronic components South Africa, relay module suppliers.