Outback Power Flexmax FM100-300VDC Mppt Charge Controller

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Three Reasons to Choose the FLEXmax 100 Charge Controller from OutBack Power:
  • Raises the bar from the originators of multiple voltage MPPT charge controllers
  • Updated MPPT software algorithm improves energy harvest vs other controllers
  • 100A output for up to 5kW of charging
  • Compatible with 24, 36 and 48VDC battery banks
  • Up to 99% efficiency
  • Extensive quality and reliability testing, including Highly Accelerated Life Testing (HALT)
  • Outdoor-rated enclosure keeps dust and moisture from damaging internal components
  • 15 years of experience manufacturing products for fault intolerant, mission-critical applications
  • Standard 5 year warranty
  • System configures quickly with smart programming wizards (MATE3s required)
  • 300VDC open-circuit voltage limit enables 2-string configuration that minimizes BOS
  • Built-in ground-fault protection and rapid shutdown capacitor discharge for easy code-compliant installation
  • Monitor, command and control over the Internet with OPTICS RE
  • Fully OutBack network integrated and programmable
  • Programmable auxiliary control output for smart load controls
  • Built-in 128 days of data logging
Product Highlights
  • 100A output for up to 5kW of charging
  • Compatible with 24, 36 and 48VDC battery banks
  • Integrated ground fault protection
  • System configures quickly with smart programming wizards (MATE3s required)
  • 300VDC open-circuit voltage limit enables 2-string configuration that minimizes BOS

The FLEXmax 100 is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power.

The advanced FM100 MPPT algorithm offers increased energy harvest from the PV array than other MPPT controllers. The FLEXmax 100 delivers both higher voltage and higher power, offering improved flexibility and performance.

OutBack network communications and OPTICS RE compatibility allows the FLEXmax 100 to be remotely programmed, monitored and controlled via any internet connected device providing unrivalled system integration.

The FM100-300VDC is a top-of-the-line high performance, efficient and versatile charge controller for your advanced power system.

NOTICE: The PNL-GFDI-80 series ground fault breakers that are included in many prewired load centers and FP systems are NOT rated for use on circuits shared with an FM100-300VDC! The FM100-300VDC charge controller is equipped with an internal ground-fault protection device and simply requires 300-VDC rated overcurrent protection on its input and output circuits. The PNL-100/125-300VDC series breakers are recommended for the battery side and the PNL-40/60/80-300VDC series breakers are recommended for the PV array side. Due to the different voltage ratings, OutBack Power does not recommend mixing the FM100-300VDC with the FM60 or FM80-150VDC controllers on the same battery bank. Be sure to thoroughly review installation instructions when installing OutBack Power equipment.



Model:FLEXmax 100
Nominal Battery System Voltage 24VDC / 36VDC / 48VDC
Maximum Continuous Output Current 100A
Maximum Input Current (Short-Circuit) 64A
Maximum Array (STC Nameplate) 3000W / 4500W / 6000W (charging output limited to 100A at battery voltage)
Maximum PV System Voltage 1 300VDC
Operating Input Voltage Range 2 30VDC to 290VDC
Standby Power Consumption ~2.5W
Power Conversion Efficiency 24V: 96%   48V: 97%
Peak Efficiency 24V: 97.5%   48V: 98.8%
Charging Regulation Three-stage
Voltage Regulation Set Points Absorption, float, silent and equalization
Equalization Charging Programmable start time, voltage set point and duration, automatic termination when completed
Battery Temperature Compensation Adjustable from 2mV/cell/°C to 6mV/cell/°C
Voltage Step-Down Capability Down convert from any acceptable array voltage to any battery voltage (example: 72VDC array to 24VDC battery)
Programmable Auxiliary Control Output 12VDC output signal which can be programmed for different control applications (maximum of 0.25ADC)
Status Display LED indicators
Remote Display and Controller MATE3s compatible
Network Cabling Proprietary network system using RJ-45 modular connectors
Data Logging 128 days
Operating Temperature Range 3 Ambient, -25°C to 60°C (-13°F to 140°F), output power reduced above 25°C
Ingress Protection Rating IP54
Enclosure Type 3R
Maximum Altitude Rating 10,000ft
Conduit Knockouts Bottom and sides
Warranty 5 years
Weight (lb/kg) Unit: 18.3 / 8.3   Shipping: 22 / 10
Dimensions H x W x D (in/cm) Unit: 22 x 8.8 x 6 / 55.9 x 22.4 x 15.2   Shipping: 25.5 x 12 x 10 / 64.8 x 30.5 x 25.4
Options Remote Temperature Sensor (RTS), HUB4, HUB10.3, MATE3s
Certifications UL 1741, CSA C22.2 No. 107.1, IEC 62109-1
Minimum Battery Bank Size 100Ah
Charging Range (Output) 20VDC to 68VDC
Additional Features Built-in GFCI, field-replaceable cooling fan

1 Highest open-circuit voltage before equipment damage. 2 Operational limits. 3 Derates to 50A at 60°C in a 48VDC system with 220VDC input. Lower input voltage improves thermal performance.

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