OutBack Power FLEXmax FM100-300VDC 100A 300Vdc MPPT Charge Controller

Out of stock
SKU: 520-0059
Regular price $1,839.37

Outback, FM100-300VDC MPPT Charge Controller, 100A, 300VDC, 24/36/48Vdc, 3R enclosure, integrated GFCI & AFCI,FM100-300VDC-AFCI


Higher voltages from PV arrays are accepted by the Outback Power FLEXmax 100 AFCI 300VDC Charge Controller, allowing for longer wire runs and smaller wire sizes. It can charge 24/36/48 VDC battery systems with a voltage of up to 290VDC from PV arrays, but it can also withstand voltages of up to 300VDC without damage. The FLEXmax 100 charges batteries faster and helps owners to sell power to the grid more easily, increasing their return on investment. The performance is rated at 100A at 77°F, with four-stage charging and a wide operating temperature range. Internal components are protected from dust and moisture by the NEMA 3R architecture, which allows for outdoor installation.


The FM100-300VDC-AFCI can be used in negative, positive, or floating ground systems. Due to ample wire bending space and oversized terminals, larger gauge wire is easier to mount. It does not need an external GFP system because it has built-in PV ground fault detection, interruption, and indication. Since the FM100-300VDC-AFCI has no onboard display, an OutBack Power MATE3s or AXS Card MODBUS/TCP interface is required to program the controller and access the 128-days of built-in data logging history, as well as the programming and monitoring system functions. Thanks to OutBack network communications and OPTICS RE, the FLEXmax 100 can be remotely configured, monitored, and controlled from any internet-connected device. It is essential to use a remote temperature sensor (RTS), which is not included in the kit. Outback Power is UL certified and comes with a 5-year warranty.

Shipping Details

Small to medium sized items ship through FedEx. It typically takes between one and two business days for handling and between two and five days in transit. Transit time depends on how close you are to a warehouse. See the Will Call shipping option for warehouse locations.

If you need quicker shipping please email / call and we can do FedEx 2 day. info@ware.solar / (801) 899-6285

Shipping and handling:

0 lb - 4.99 lb: $25.98

5 lb - 9.99 lb: $33.83

10 lb - 17.99 lb: $44.89

18 lb - 25.99 lb: $52.27

26 lb - 33.99 lb: $61.06

34 lb - 44.99 lb: $73.63

Rails over 10' need to ship through an LTL carrier

Rails over 10' and under 13'

$448.55 - 0 lb - 200 lbs

$460.54 - 200.1 lb - 665 lb

$486.65 - 665.1 lb - 1160 lb

Rails over 13.1' and 15'

$579.01 - 0 lb - 400 lb

$615.40 - 400.1 lb - 720 lb

$636.37 - 720.1 lb - 840 lb

Save on shipping by combining the rails and panels on the same order.

These items need to ship through an LTL carrier

$248.46 - 0 lb - 200 lb

$277.78 - 200.1 lb - 500 lb

$293.16 - 500.1 lb - 1000 lb

Save on shipping by combining the panels and rails on the same order.

Will Call warehouse locations:

Arlington TX, Fort Lauderdale FL, Fontana CA, Las Vegas NV, Millstone NJ, Orlando FL, Sacrament CA, Tampa FL

Please email us your order and we will email you an invoice with the Will Call option. info@ware.solar