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Morningstar TS-MPPT-45, 45A MPPT Charge Controller

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Morningstar’s TriStar MPPT solar controller with TrakStar Technology™ is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems up to 3kW. The controller provides the industry’s highest peak efficiency of 99% and significantly less power loss compared to other MPPT controllers.

The TriStar MPPT features a smart tracking algorithm that maximizes the energy harvest from the PV by rapidly finding the solar array peak power point with extremely fast sweeping of the entire I-V curve. This product is the first PV controller to include on-board Ethernet for a fully web-enabled interface and includes up to 200 days of data logging.



Maximizes Energy Harvest

• Better peak power point tracking than other MPPT controllers
• Very fast sweeping of the entire I-V curve
• Recognition of multiple power points during shading or mixed PV arrays
• Excellent performance at sunrise and low solar insolation levels

Extremely High Reliability

• Robust thermal design and no cooling fans
• Parallel circuit design provides less stress and longer life for electronic components
• No mechanical relays
• Extensive electronic protections including PV short circuit protection
• Epoxy encapsulated inductors and conformally coated printed circuit boards

Very High Efficiency

• Peak efficiency of 99%
• Proprietary tracking algorithm minimizes power losses
• Low self-consumption
• Continuous operation at full power to 45°C without need to de-rate
• Selected electronic devices with higher ratings to minimize losses from heating

Extensive Networking and Communications Capabilities

Enables system monitoring, data logging and adjustability. Uses open standard MODBUS™ protocol and Morningstar’s MS View software.

•Meterbus: communications between compatible Morningstar products
• Serial RS-232: connection to a personal computer
• EIA-485: communications between multiple devices on a bus
• Ethernet: fully web-enabled interface to a local network or internet; view from a web browser or send email/text messages
• EMC-1: IP based network and internet connectivity

Metering and Data Logging

• TriStar meter and remote meter provides detailed operating data, alarms and faults
• Three LEDs display system status
• Up to 200 days of data logging via meters or communications ports



Maximum Battery Current: 45 amps

Nominal Maximum Operating Power: 12 Volt: 460 Watts
                                                                         24 Volt: 1200 Watts

                                                                         48 Volt: 2400 Watts

Peak Efficiency: 99%

Nominal System Voltage: 12, 24, or 48 volts DC

Maximum PV Open Circuit Voltage: 150 volts DC

Battery Operating Voltage Range: 8-72 volts DC

Maximum Self-consumption: 2.7 Watts

Transient Surge Protection: 4500 Watts/port

Charging Algorithm: 4-stage

Charging Stages: Bulk, Absorption, Float, Equalize

Dimensions: 29.1 x 13.0 x 14.2 cm (11.4 x 5.1 x 5.6 in)

Weight: 4.2 kg / 9.2 lbs

Maximum Wire Size: 35 mm² / 2 AWG

Conduit Knockouts: M20; ½, 1, 1 ¼ in

Enclosure: Type 1 (indoor and vented) IP20

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