LifeSafety FPO150
The AC mains connection to the LifeSafety’s FPO150 power supply must be followed in
accordance with LifeSafety’s installation manuals. All AC mains electrical connections must
comply to the local electrical authority’s codes and NFPA section 70. Installation & service
should be performed by a qualified service personnel.
Refer to
LifeSafety’s FPO150 Installation Manual
for additional guidance.
The power supply provides two alarm outputs for monitoring battery low voltage and mains
failure alarms. Both the alarm outputs have on-board 4k7 EOL resistors fitted as standard.
Note: Do not apply voltage directly to the Battery Low or Mains Failure outputs, as this will
damage the monitoring circuitry, rendering the power supply unusable.
1. Using the battery leads provided, connect the required number of 7 Ah 12 V batteries to
the FPO150. To provide 24 Vdc battery backup, connect the batteries as shown.
Battery
(not supplied)
Positive
(+)
Negative
(-)
Battery
(not supplied)
Positive
(+)
Negative
(-)
Battery lead
Battery lead
Battery lead
2. The red wire connects to the red/positive battery terminal. The black wire connects to
the black/negative battery terminal. Use the orange wire provided as a jumper between
batteries.
Note: The batteries are not provided. The batteries are used as standby batteries, should
the mains power supply fail. Battery capacity requirements are to be calculated based
on the total load of the system and the number of hours required to run the system on
battery backup. For additional battery capacity, it must be housed in an additional cabinet
and connected to provide 24 Vdc back to the FPO150.
3. Terminate the AC mains earth to the main earth stud located on the right-hand side of
the gear plate. Earth termination must adhere to NFPA section 70 and local authority
electrical codes.
