SolarEdge U650B 650W Domestic Content Power Optimizer

About This Product

The SolarEdge U650B 650W Domestic Content Power Optimizer is a module-level DC power optimizer designed for use with compatible SolarEdge inverter systems in the US market. The U650B supports PV modules up to 650W and provides a 100V maximum input voltage with a 15A maximum operating input and output current. It performs module-level maximum power point tracking (MPPT), allowing each connected module to operate independently within the SolarEdge system architecture. This USA-manufactured version is designed to contribute toward Domestic Content requirements when installed as part of a qualifying SolarEdge system and used in accordance with applicable federal requirements.

Who This Product Suits

The SolarEdge U650B is suited to residential and commercial SolarEdge installations using higher-voltage PV modules that fall within its electrical operating limits. It is particularly useful where module-level optimization, monitoring, and SolarEdge rapid-shutdown functionality are required. System designers should confirm module electrical characteristics, optimizer string lengths, inverter compatibility, DC-to-AC sizing, and applicable NEC requirements before specifying the U650B. Domestic Content eligibility also depends on the optimizer being used with qualifying SolarEdge equipment and meeting the applicable project requirements.

Specifications Explained

• Rated input power: 650W, allowing the optimizer to be paired with PV modules up to its specified rated input power.
• Maximum input voltage: 100V DC, making the U650B suitable for higher-voltage modules that fall within its input limits.
• MPPT operating range: 12.5-100V DC for module-level maximum power point tracking.
• Maximum operating current: 15A DC input and 15A DC output.
• Maximum output voltage: 80V DC during normal system operation.
• Efficiency: Up to 99.5% maximum efficiency with 98.6% weighted efficiency.
• System voltage: Suitable for SolarEdge systems up to 1000V DC, subject to system design requirements.
• Rapid shutdown: Supports SolarEdge’s module-level safety architecture with a 1V nominal safety output per optimizer when the inverter is off or the optimizer is disconnected from an operating SolarEdge inverter.
• US compliance: Designed for North American installations with UL 1741 certification and photovoltaic rapid-shutdown compliance covering NEC 2014 through NEC 2023 requirements.

Summary

The SolarEdge U650B is a 650W, 100V module-level power optimizer for compatible SolarEdge PV systems. It combines individual-module MPPT, panel-level system functionality, high conversion efficiency, and SolarEdge’s rapid-shutdown architecture in a unit intended for modern higher-power PV modules. For US projects pursuing Domestic Content qualification, this version can contribute domestic content when paired with qualifying SolarEdge equipment and installed in accordance with the applicable program requirements.

Further Information From The Manufacturer

Power Optimizer 650W/15A/100

MUST BE PURCHASED in system level ratios

with qualifying SolarEdge inverters (-USMNBE78, -USSKBEZ8) – ratio will vary, but is determined by PV array size and inverter watt class within recommended DC to AC limits (typically 1.5x or less)

Domestic Content Optimizer – Must be paired with a qualifying SolarEdge inverter (-USMNBE78, -USSKBEZ8) to qualify for Domestic Content Bonus Credit. This item includes domestic content and if used in accordance to the provisions set forth by the IRS, may qualify the taxpayer for a Domestic Content Bonus Credit.

About SolarEdge

SolarEdge is a global leader in optimiser-based solar systems, providing robust inverters, module-level electronics and advanced monitoring tools. Their residential and commercial platforms integrate solar, storage, EV charging and energy management into a unified ecosystem designed for system efficiency and long-term reliability.