📝 Description
Used product. Electronic SMA Solar Technology AG RS485 Piggy-Back communication module, model 485PB-G3, designed to integrate an RS485 serial interface into compatible SMA photovoltaic inverters.
The board installs directly onto the inverter's main circuit board using the designated plug-in connectors. It enables operational data communication with monitoring systems, data loggers and other compatible equipment, facilitating photovoltaic system supervision and diagnostics.
The module features an electronic circuit with components for the serial interface, signal isolation and multipole connectors. The designation 485PB-G3 is clearly visible on the black connector label, as shown in the photographs.
This product is intended as a replacement part for older-generation SMA installations that support this specific communication interface.
⚙️ Main Specifications
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Manufacturer: SMA Solar Technology AG.
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Model: 485PB-G3.
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Type: Piggy-Back electronic communication module.
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Interface: RS485 serial communication.
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Installation: Plug-in connection to the main board of a compatible inverter.
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Function: Communication and operational data transfer.
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Construction: Printed circuit board with electronic components and multipole connectors.
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Main designation: 485PB-G3.
🏷️ Reference Codes and Compatibility
The module is described as interchangeable with variants from the same series. The associated reference codes are:
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Main model: 485PB-G3.
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Extended code / hardware revision: 485PB-G3-11-00.01 A2.
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Additional code: 3096075.
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Alternative designation: 485PB-G3 H5 (943154)
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Additional designation: 485PB-G3 (H1#455963).
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Internal component markings: 04-0302 / EZ 42/10 EA.
Compatibility and interchangeability must be confirmed against the exact inverter model and hardware revision before installation.
🔌 Main Functions
- Enables RS485 serial communication.
- Transmits inverter data to compatible external devices.
- Connects the inverter to data acquisition and monitoring systems.
- Supports supervision of operating parameters.
- Integrates the inverter into communication systems supported by SMA.
🧩 Compatibility with SMA Inverters
The 485PB-G3 module is documented for specific SMA RS485 communication configurations. Compatibility depends on the exact inverter model, hardware revision and interface specified by the manufacturer. The following product families are references for verification, not a guarantee of compatibility with every model.
1. SMA Sunny Boy
Potential models to verify:
- SB 2500.
- SB 3000.
- SB 3300.
- SB 3800.
- SB 4000TL.
- SB 5000TL.
- Selected Sunny Boy HF models, including SB 2000HF, SB 2500HF and SB 3000HF.
2. SMA Sunny Mini Central (SMC)
The module is documented for RS485 communication systems intended for certain Sunny Mini Central configurations. Compatibility with the SMC 6000TL, 7000TL, 8000TL, 9000TL-10, 10000TL-10 and 11000TL-10 series must be verified against the documentation for the specific model.
3. SMA Sunny Tripower
Compatibility with certain Sunny Tripower versions must be verified according to the model and hardware revision. Belonging to the STP family alone does not guarantee that the module can be installed.
🔗 Compatibility with Monitoring Systems
The module may enable connections to monitoring devices that support SMA communication via RS485, according to the intended configuration.
Systems to check include:
- SMA Sunny WebBox with RS485 interface.
- Data loggers compatible with the inverter's communication protocol.
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Monitoring and data acquisition systems supporting the required protocol.
The presence of an RS485 port on an external device alone does not guarantee compatibility. The protocol and configuration used by the inverter must also be supported.
🛠️ Applications
- Compatible SMA photovoltaic inverters.
- Solar power system monitoring.
- Connection to data acquisition devices.
- Maintenance and repair of communication interfaces.
- Restoration of serial communication in existing photovoltaic installations.
💡 Advantages
- Dedicated communication module for compatible SMA inverters.
- Compact plug-in design.
- Allows communication to be added or restored without replacing the entire inverter.
- Useful replacement part for older-generation photovoltaic installations.
- Enables integration with compatible monitoring systems.
🛡️ Product Condition
Used product, as shown in the photographs. The board features visible electronic components and connectors. Correct electrical operation and RS485 data transmission have not been confirmed from the photographs alone.
Carefully verify the module code, hardware revision and compatibility with the target inverter before installation.
📦 Package Contents
- 1 SMA RS485 Piggy-Back 485PB-G3 communication module.
- Cables, accessories, jumpers and other components not visible in the photographs are not included.
🟢 Summary
SMA RS485 Piggy-Back 485PB-G3 communication module, intended for compatible photovoltaic inverters and monitoring systems. Associated reference codes include 485PB-G3-11-00.01 A2,(3096075), 485PB-G3 H5 (943154) and 485PB-G3 (H1#455963). Used replacement part for maintenance, repair and restoration of serial communication. Verify the exact hardware revision and compatibility before installation.
