Morningstar TriStar TS-45: The World’s Most Versatile 45A Controller

The Morningstar TriStar TS-45 is a sophisticated 45-amp controller that provides more features and capabilities than any other unit in its class. Designed for both residential and professional applications, the TS-45 offers unique 3-in-1 functionality. A single unit can be configured to operate as a high-capacity solar charge controller, a robust DC load controller, or a diversion regulator for wind and hydro systems.

Unlike standard controllers limited to 12V or 24V, the TriStar TS-45 supports 12V, 24V, and 48V battery banks. Engineered for extreme reliability, it features a massive heat sink and a fanless design, allowing it to operate at full rated current in ambient temperatures up to 45°C without the risk of mechanical failure. Its 100% solid-state design and RS-232 communication port make it the backbone of advanced off-grid power infrastructure.

Key Professional Advantages:

• 3-in-1 Versatility: Field-selectable for Solar Charging, DC Load Control (with LVD), or Diversion Regulation to protect batteries from overcharging in wind/hydro systems.
• High Voltage Range: Fully compatible with 12V, 24V, and 48V battery systems, providing a scalable solution for growing off-grid arrays.
• Extreme Reliability: Large heat sink area allows for full 45A output without cooling fans. Rated for 15+ years of continuous service in harsh environments.
• Advanced Data Communications: Includes an RS-232 port for custom programming, data logging, and remote monitoring via PC or specialized web interfaces.
• Low Electronic Noise: Meets FCC Class B specifications, ensuring interference-free operation near sensitive telecommunications and radio equipment.
• Fully Protections Suite: Electronic protection against short-circuit, over-current, high temperature, and reverse polarity with automatic recovery.

Technical Specifications:

Technical Tip: The TS-45 features large terminals that accept up to #2 AWG wire. For 48V systems, we highly recommend utilizing the "Battery Sense" terminals to ensure the controller compensates for any voltage drop in your primary battery cables, maintaining precise charging accuracy.