Morningstar TS-45, 45A 12, 24, 48V PWM Solar Charge Controller

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Morningstar’s TriStar Controller is a three-function, programmable controller that provides reliable solar battery charging, load control or diversion regulation. The controller operates in one of these modes at a time and two or more controllers may be used to provide multiple functions.

The TriStar uses advanced technology and automated production to provide exciting new features at a competitive cost. The optional TriStar meter is the most sophisticated and informative controller meter on the market. The 60 amp version is also available with a factory installed meter. The controller is ETL Listed (UL1741) and TUV (IEC62109-1), and is designed for home systems and professional applications.


  • Highest Reliability: Large heat sink and conservative design enables operating at full ratings to 60°C. No need to de-rate.

  • More Power: Ratings to 60A at 48VDC will handle solar arrays up to 4kW.

  • Communications Capability: RS-232 connects to a personal computer for custom settings, data logging and remote monitoring and control.

  • Fully Adjustable: DIP switch provides user with a choice of 7 different digital presets and custom settings via RS-232.

  • Extensive Electronic Protections: Fully protected against reverse polarity, short circuit, overcurrent, high temperature and overvoltage.

  • Simple Mechanical Interface: Larger power terminals and conduit knockouts. Extra space for wire turns. Fits on power panels.

  • Better Battery Charging: Connecting battery sense wires and optional remote temperature sensor will improve control accuracy. Constant

    voltage series PWM algorithm increases battery capacity and life.

  • More Information: 3 LED’s to indicate status, faults and alarms. Optional meter displays extensive system and controller information, automatic

    self-test and reset capabilities. Meter connection via RJ-11 phone jack.

  • Easy to Reset: Pushbutton 11 provides manual reset and stop/start battery equalization or load disconnect.

  • Low Telecom Noise: DIP switch setting will change PWM to “On-Off” battery charging.


Rated solar, load or diversion current: 45A

System Voltage: 12, 24, 48V

Minimum voltage to operate: 9V

Maximum solar voltage (Voc): 125V

Self-consumption: <20mA

Dimensions: 10.3 x 5 x 2.8 in (26 x 12.7 x 7.1 cm)

Weight: 3.5lb (1.6 kg)

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