MaximalFEV Expandable Power Systems
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MaximalFEV Overview:
Maximal Expandable Power Systems provide system designers and installers with optimum power choices
and the highest levels of versatility . They provide 12VDC, 24VDC, or 12VDC and 24VDC simultaneously via
two (2) single output power supply/chargers . Includes AC fail, low battery, and battery presence monitoring .
Enclosure facilitates up to four (4) 12VDC/12AH batteries .
MaximalFEV Features:
Input:
• 220VAC (working range 198VAC - 256VAC),
50/60Hz .
Output:
• For output voltage and supply current, refer to
MaximalFEV series Configuration Chart, pg. 4 .
• Auxiliary power-limited output rated @ 1A
(unswitched) .
• Overvoltage protection .
Battery Backup:
• 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 .
Fire Alarm Disconnect:
• Supervised Fire Alarm disconnect (latching or non-
latching) 10K EOL resistor . Operates on a normally
open (NO) or normally closed (NC) trigger .
Supervision:
• AC fail supervision (form “C” contacts) .
• Battery fail and 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 .
Fuse Ratings:
• Refer to MaximalFEV series Configuration Chart,
pg. 4.
Visual Indicators:
• Green AC Power LED indicates 220VAC present .
• AC input and DC output LED indicators .
Additional Features:
• Short circuit and overload protection .
• Unit is complete with power supply, enclosure,
battery leads and cam lock .
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