SMA EMETER-US-50 Energy Meter

The SMA EMETER‑US‑50 is a compact, high-precision energy meter designed for U.S. residential and light commercial solar systems. Purpose-built for compatibility with Sunny Boy Smart Energy inverters, it measures bi-directional energy flow—tracking both consumption and export—allowing homeowners and installers to optimize self-consumption, implement export limiting, and monitor system performance in real time via SMA portals and apps. 

Key Benefits

• Precision Energy Monitoring: Tracks grid import and export with ±1% accuracy at 200 ms interval 

• Easy Installation: Pre-terminated wiring, two split-core CTs, and UL‑2808 approval for in-panel installation 

• Smart Connectivity: Supports Ethernet (SMA Speedwire) and RS-485 (Modbus RTU) protocols for inverter or network integration 

• Zero Export & Power Limiting: Enables dynamic control of grid feed-in to comply with local utility limits 

• Compact & Reliable: Only ~0.2 lb, indoor-rated (NEMA 1), low power draw (<2 W), and suitable for split-phase or three-phase systems 

• Trusted SMA Build: Covered by a 2-year warranty and certified to UL, FCC, CSA, and ICES standards 

Technical Specifications

Why Choose SMA EMETER-US-50?

• Ideal for homeowners implementing solar self-consumption and energy optimization

• Enables zero-export functionality and compliance with utility regulations

• Intuitive setup through SMA 360° Installer App and homeowner monitoring via SMA Energy App or Sunny Portal 

• Compact DIN-rail mounting with in-panel placement ensures clean, professional installations

• Built with industry-grade components, supporting up to 200 A current measuring and featuring multiple safety certifications

Document: Specification Sheet