• M5Stack AC SSR Modbus Unit with 10A single-phase relay
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  • M5Stack AC SSR Unit RS485PWR connection and terminal layout
  • M5Stack ACSSR 10A relay control application view
  • M5Stack AC SSR single-phase automation control kit
  • M5Stack ACSSR dimensions and mounting details
  • M5Stack AC SSR Unit accessories and terminal blocks
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M5Stack Single-phase AC SSR Unit (CDG1-1DA-10A)

M5Stack Single-phase AC SSR Unit (CDG1-1DA-10A)

LB-M5-U139

20 in stock
$19.90 USD
$19.90 USD $18.50 USD

M5Stack AC SSR Unit for Single-Phase Load Switching

The M5Stack AC SSR Unit combines an ESP32-C3 control board with a CDG1-1DA-10A single-phase solid-state relay. It supports local button control, I2C slave control, and Modbus networking, allowing the same hardware to fit bench testing, local machine control, and distributed automation systems.

The relay is specified for AC 24–480V load circuits with a 10A rated load current. The control side supports DC 3–32V input to the SSR, while the controller can be powered through Grove at 5V or through the RS485PWR interface at 9–24V. A programmable SK6812 RGB LED provides status indication.

Choose Button, I2C, or Modbus Control

Button mode supports direct local switching. I2C control uses address 0x50 and is useful when the unit is close to an embedded host. Modbus mode uses the RS485PWR interface for distributed systems; the documented communication configuration is 115200bps 8N1 with default device ID 0x0004.

Solid-State Switching Without Mechanical Contacts

A solid-state relay has no mechanical contact movement, which avoids contact bounce and mechanical wear. Thermal design still matters: on-state voltage drop produces heat, and the usable current depends on enclosure airflow, ambient temperature, load type, switching profile, wiring, and installation conditions.

Plan for the Actual Load Type

Resistive heaters, motors, transformers, and other inductive loads behave differently during startup and switching. Size the relay and protection devices for inrush current and fault conditions rather than only steady-state current. Verify the manufacturer's derating guidance for the final load.

Mains Voltage Safety

AC mains voltage can cause severe injury, fire, or death. Use appropriate fusing, creepage and clearance, protective earth where required, insulated terminals, a rated enclosure, strain relief, and installation practices that comply with local electrical regulations. Disconnect power before wiring or servicing. This module should not be used as the sole safety isolation or emergency-stop device.

Technical setup details are available in the M5Stack ACSSR documentation.

M5Stack Single-phase AC SSR Unit (CDG1-1DA-10A)

$19.90 USD

How can I confirm product compatibility?

Check the product specifications, operating voltage, communication interface, dimensions, connector type, and software requirements before ordering. Compatibility may also depend on your controller, operating system, development framework, library version, and project wiring.

If you are unsure, contact us before purchasing and include your controller model, intended application, power source, and any other hardware you plan to use. We will help you identify the most suitable option, but we cannot guarantee that every product will work with every platform or project.

Does the product come with a warranty?

Warranty coverage may vary by product and manufacturer. If your order arrives damaged, incomplete, or appears to have a manufacturing defect, contact us as soon as possible with your order number, product model, and clear photos or videos of the issue.

Our team will review the information and provide the appropriate next step according to the applicable product and after-sales policy. Damage caused by incorrect wiring, unsuitable voltage, unauthorized modification, soldering, misuse, or operation outside the documented specifications may not be covered.

How long does shipping take?

LogicBoundless provides worldwide shipping, with primary service coverage across the United States, Europe, and Asia. Orders are generally fulfilled from Shenzhen, China, and tracking information is provided after dispatch.

Processing and delivery times depend on product availability, destination, customs clearance, and the selected shipping service. Please review the Shipping Information page for the latest estimated delivery times and shipping conditions.

What is your return policy?

Eligible products may be returned within 30 days of delivery. Returned items must be unused, unsoldered, unmodified, and kept in their original condition with all packaging, cables, accessories, manuals, and included components.

Please contact support@logicboundless.com before sending anything back. Returns made without prior approval may not be accepted. Original shipping charges are generally non-refundable unless the return is caused by a verified product defect or fulfillment error.

Can you help if I have a technical problem?

Yes. LogicBoundless provides practical technical guidance for product setup, wiring, power, communication, code, and configuration issues.

To help us understand the problem efficiently, please provide your controller model, wiring photos, power source, code, library or firmware versions, expected behavior, and complete error messages. We cannot promise that every component will work in every system, but we will help you identify the likely cause and the next practical troubleshooting step.

Can I change or cancel my order?

Contact us as soon as possible if you need to change or cancel an order. We will try to assist before the order enters processing or is handed to the shipping carrier.

Once an order has been packed or dispatched, it may no longer be possible to change the products, delivery address, or shipping method. In that case, the standard return process may apply after delivery.

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