Morningstar TriStar TS-MPPT-45: Professional 45A Solar Charge Controller

The Morningstar TriStar MPPT-45 (TS-MPPT-45) with TrakStar™ Technology is an industrial-strength 45-amp charge controller designed for professional off-grid solar systems. Delivering a record-breaking 99% peak efficiency, it maximizes energy harvest from high-voltage solar arrays (up to 150Voc) to charge 12V, 24V, and 48V battery banks. This controller is globally recognized for its reliability in telecommunications, remote monitoring, and high-end residential applications.

Maximum Energy Harvest & Unrivaled Reliability

• TrakStar MPPT Technology: Features the industry's fastest sweeps of the I-V curve, ensuring the controller finds and stays on the maximum power point even in rapidly changing weather or low-light conditions.
• 150V PV Input Capacity: Enables high-voltage series strings, which reduces voltage drop and minimizes wiring costs over long distances from the solar array.
• Fanless Thermal Design: Large die-cast aluminum heat sinks and high-efficiency electronics eliminate the need for cooling fans, removing a common point of failure.
• Advanced Networking: Includes Ethernet for web-based monitoring, plus RS-232 and EIA-485 ports for full industrial integration and data logging via MSView software.
• Robust Electronic Protections: Fully protected against PV short circuits, over-current, reverse polarity, and high-temperature operation.

Maximum Recommended PV Input Power

The TS-MPPT-45 allows for significant array oversizing to ensure battery health in low-sun regions:

Electrical Specifications