The Waveshare 30-Channel Ethernet Relay Module is a robust and versatile control solution designed for industrial automation and remote switching applications. It supports both Modbus RTU and Modbus TCP protocols, ensuring easy integration into a wide range of network environments and compatibility with existing control systems.
Features:
- Flash-on / Flash-off function: Allows turning a relay on for a set duration and automatically switching it off by passing an argument to the command
- DC 7~36V wide-range power input and PoE power supply support
- MQTT protocol control supported, with an Alibaba Cloud MQTT application demo included
- Onboard optocoupler isolation to prevent high-voltage circuit interference
- Equipped with a dedicated relay driver chip featuring built-in flyback diode protection for stable and strong driving capability
- Reverse-proof circuit to protect from accidental incorrect wiring
- High-quality relay, contact rating: ≤10A 250VAC / 30VDC
- Rail-mounted ABS plastic enclosure, safe and easy to install
- 4 LEDs and network indicators for MCU status and signal transmission monitoring
Specifications:
| Manufacturer | WAVESHARE |
|---|---|
| Power Supply | PoE port, DC 5.5*2.1 power port, or screw terminal |
| DC Power Range | 7~36V wide range |
Package Includes:
-
1 × Waveshare 30-Ch Ethernet Relay Module, Modbus RTU / Modbus TCP Protocol, PoE Port Communication, With Various Isolation and Protection Circuits
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Read More →Technical Specifications
| Brand | WAVESHARE |
|---|---|
| SKU | AI7541 |
| Weight | 1.15 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, With Various Isolation And Protection Circuits is a versatile industrial relays used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
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
- Genuine WAVESHARE product sourced from authorized channels
Girish Nair –
Very satisfied. My smart home system runs on these Waveshare 30-Ch Ethernet Relay Module, Modbus modules. Totally reliable.
Kiara Chauhan (verified owner) –
Perfect Waveshare 30-Ch Ethernet Relay Module, Modbus for my IoT project. Controlling appliances remotely works flawlessly.
Ankur Tiwari (verified owner) –
This Waveshare 30-Ch Ethernet Relay Module, Modbus is robust and well built. PCB quality is excellent.
Sameer Tiwari (verified owner) –
Good Waveshare 30-Ch Ethernet Relay Module, Modbus. Works well. LED indicators are helpful for debugging.
Ravi Trivedi –
Average Waveshare 30-Ch Ethernet Relay Module, Modbus. Works but the relay generates some EMI. Added snubber to fix.
Ishaan Nayak (verified owner) –
Nice Waveshare 30-Ch Ethernet Relay Module, Modbus. Relay clicks are clear. Terminal connections are solid.
Anushka Sethi –
Nice Waveshare 30-Ch Ethernet Relay Module, Modbus. Relay clicks are clear. Terminal connections are solid.
Ravi Singh (verified owner) –
Outstanding quality! This Waveshare 30-Ch Ethernet Relay Module, Modbus has been running 24/7 for months without a single failure.
Nakul Vyas (verified owner) –
Great quality Waveshare 30-Ch Ethernet Relay Module, Modbus. All channels working. Optocoupler isolation is a nice feature.
Ishaan Bhatt (verified owner) –
Superb Waveshare 30-Ch Ethernet Relay Module, Modbus! Using it to control my garden irrigation system. Very dependable.