VICTRON ENERGY SmartSolar MPPT RS 450/100-MC4

With a maximum PV open circuit voltage of 450V and a charge current of 100A, the Victron Energy SmartSolar MPPT RS 450/100-MC4 delivers up to 5760W of solar power to 48V battery banks, making it a powerhouse for large off-grid and grid-tie systems.

Overview

The SmartSolar MPPT RS 450/100-MC4 is a high-voltage solar charge controller engineered for demanding installations. It features dual independent Maximum Power Point Tracking (MPPT) inputs, each accepting PV arrays up to 450V open circuit, and converts that energy efficiently to charge 24V, 36V, or 48V battery systems. With a maximum charge current of 100A, it can handle substantial solar arrays while maintaining precise battery management.

What stands out

• Ultra-fast MPPT tracking with 99.6% efficiency ensures maximum energy harvest even under rapidly changing light conditions.
• Dual PV trackers allow two separate solar arrays to be connected, optimizing performance in partial shading or different orientations.
• Built-in Bluetooth Smart enables wireless monitoring and configuration via the VictronConnect app on smartphones and tablets.
• VE.Can and VE.Direct ports provide seamless integration with GX devices, remote displays, and other Victron components.
• Two programmable SPDT relays can be used for generator start, alarms, or load control.
• Active cooling with a temperature-controlled fan ensures reliable operation even at full power in high ambient temperatures.
• Graphical LCD display on the unit provides real-time status and historical data.

Technical details

• Maximum PV open circuit voltage: 450V
• Maximum PV power (48V battery): 5760W
• Maximum charge current: 100A
• Nominal battery voltage: 48V (configurable for 24V, 36V)
• Number of independent PV trackers: 2
• PV connector type: MC4
• Battery connection: Screw terminals
• Maximum efficiency: 96%
• MPPT tracking efficiency: 99.6%
• Communication ports: VE.Can, VE.Direct, Bluetooth Smart
• Enclosure protection rating: IP21
• Operating temperature range: -30 to +60°C (full power up to 40°C)
• Cooling method: Active (fan)
• Display: Graphical LCD
• Programmable relays: 2x SPDT
• External sensor inputs: Temperature, voltage
• Protection features: PV reverse polarity, output short circuit, over temperature
• Grounding: Positive or negative system (selectable)

Our verdict

The SmartSolar MPPT RS 450/100-MC4 is a top-tier choice for large solar installations, offering exceptional efficiency, dual MPPT flexibility, and robust connectivity. Its high voltage capability reduces wiring costs and losses, while the comprehensive monitoring and control options make it a versatile component for any serious solar power system.