Installation Guide

- 2 - MaxiFit3FE/MaxFit5FE/MaxFit7FE Expandable Power Systems Installation Guide
MaxFitFE Series Overview:
Altronix MaxFit Expandable Power Systems provide system designers and installers with optimum power
choices and the highest levels of versatility. They provide 12VDC or 24VDC via single output power supply/
charger. Includes AC fail, low battery, and battery presence monitoring. Enclosure accommodates up to four (4)
12VDC/12AH batteries. All interconnecting equipment must be UL Listed.
MaxFitFE Series Configuration Chart:
Altronix
Model
Number
120VAC
60Hz
Input
Current
Input
Fuse
Rating
Battery
Fuse
Rating
Nominal DC Output
Voltage Options
Maximum
Supply
Current
for Main
and Aux.
Outputs
Ripple
Voltage (mV)
Under
low
battery
condition
[DC] [AUX]
12VDC
Output
Range
(V)
24VDC
Output
Range
(V)
12VDC
Output
Range
(V)
24VDC
Output
Range
(V)
MaxFit3FE
3.5A 5A/250V 10A/32V
10.0-
13.2
20.19-
26.4
10.03-
13.2
20.19-
26.4
6A 910
MaxFit5FE
3.5A 5A/250V 15A/32V
10.03-
13.2
–
10.03-
13.2
– 10A 760
MaxFit7FE
4.5A 6.3A/250V 15A/32V –
20.17-
26.4
–
20.17-
26.4
10A 700
DC outputs for these power supplies are not power-limited. If a power-limited output is required in the end-product
application, DC output from the power supply must be connected to a separately Listed control unit or accessory board
that provides power-limited outputs. The product(s) providing the power-limited output(s) must be listed as appropriate
for the particular end-productapplication and wired in accordance with the products installation instructions. Class 1
wiring methods, separation of circuits, and proper fire-rated enclosures all must be considered when connecting the
DC output of the power supply to the end-product devices. The auxiliary outputs of these units are power-limited.
MaxFitFE Series Features:
• Input: 120VAC, 60Hz.
• For output voltage and supply current refer
to MaxFitFE series Configuration Chart, pg. 2.
• Auxiliary Power-Limited output rated @ 1A (unswitched).
• Overvoltage protection.
• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 1.54A.
• Automatic switch over to stand-by battery when AC fails. Transfer to stand-by battery power is instantaneous
with no interruption.
• Supervised Fire Alarm disconnect (latching or non-latching) 10K EOL resistor. Operates on a normally open
(NO) or normally closed (NC) trigger.
• AC fail supervision (form “C” contacts).
• Battery fail & presence supervision (form “C” contacts).
• Low power shutdown. Shuts down DC output terminals if battery voltage drops below 71-73% for 12V units
and 70-75% for 24V units (depending on the power supply). Prevents deep battery discharge.
• For fuse ratings refer to
MaxFitFE series Configuration Chart, pg. 2.
• Green AC Power LED indicates 120VAC present.
• AC input and DC output LED indicators.
• Short circuit and overload protection.
• Enclosure accommodates up to four (4) 12VDC/12AH batteries.
Enclosure dimensions (H x W x D): 20.5” x 16.5” x 6.25” (520.7mm x 419.1mm x 158.8mm).