FlexMax FM100 AFCI Installation

Specifications

900-0253-01-00 Rev A

Temperature Range and Derating

In standard installations, the FLEXmax 100 can operate at its full 100-amp capacity at ambient

temperatures up to 25°C (77°F). Above this temperature, its output is derated as described below.

The values depicted in Figure 53 are examples for a system with a PV input of 220 Vdc. Lower input

voltage will improve the controller’s thermal performance.



For a nominal 24-volt battery system:

At 60°C (140°F), the output is derated to a maximum of 46 Adc. The controller is not rated for operation above

this temperature.



For a nominal 48-volt battery system:

At 60°C (140°F), the output is derated to a maximum of 50 Adc. The controller is not rated for operation above

this temperature.

Figure 53 Temperature Derating

NOTE:

The temperatures shown here are the external ambient temperatures that usually

accompany derating conditions. For the actual internal temperature readings that result in

derating, see page 38.

DEGREES

24 Vdc

AMPERES

50A

46A

25°C

48 Vdc