SMA RS485 Communication Module

Enhance system connectivity and monitoring reliability with the SMA RS485 Communication Module, designed for use with SMA CORE1-US and Sunny Boy inverters. This communication accessory provides a stable, wired data connection for advanced monitoring and control in large-scale or complex PV installations.

Key Features & Benefits

• Reliable Wired Communication – Establishes robust RS485 data transfer between inverters and external monitoring or control systems.

• Multi-Inverter Networking – Supports daisy-chaining of multiple SMA inverters for streamlined system data exchange and centralized monitoring.

• Seamless Integration – Designed specifically for SMA CORE1-US and Sunny Boy-US inverter series (1SP-US-40 / 41 models).

• Extended Communication Range – Ideal for long-distance data transmission where wireless connectivity is limited or impractical.

• Easy Installation – Plug-and-play module that fits directly into the inverter’s communication slot, with no additional wiring complexity.

• Durable Construction – Engineered for outdoor solar environments, ensuring reliable operation even in harsh conditions.

Technical Specifications

• Model / Part Number: MD-485-US-40

• Compatibility: SMA CORE1-US and Sunny Boy 1SP-US-40/41 series inverters

• Interface Type: RS485 (2-wire half-duplex communication)

• Maximum Network Length: Up to 1,200 meters (3,937 ft)

• Baud Rate: 9.6 to 115.2 kbps

• Connection Type: Screw terminal (pluggable)

• Isolation: Galvanically isolated communication channel

• Operating Temperature Range: −25 °C to +60 °C (−13 °F to +140 °F)

• Protection Class: IP65

• Dimensions: 125 × 65 × 55 mm (4.92″ × 2.56″ × 2.17″)

• Weight: Approx. 0.3 kg (0.66 lb)

Applications

• Commercial PV systems requiring long-distance inverter data networking

• Solar installations where Ethernet or Wi-Fi is unavailable or unstable

• System owners who need dependable, low-latency monitoring connections

Why Choose the SMA RS485 Communication Module?

The SMA RS485 Module (MD-485-US-40) ensures consistent, interference-free data transmission for your SMA solar network. Whether connecting multiple inverters or integrating with data loggers and monitoring systems, it delivers the reliability and performance required for professional PV management.

Document: Specification Sheet