Shield Aura - Battery; Rechargeable Standby Battery Circuit; Standby Battery Loads

Battery
Rechargeable Standby Battery Circuit
Designation Description
Standby Battery Type Two 12 VDC, rechargeable, valve-regulated, lead-acid batteries wired in series
Charger Type Temperature compensated, current limited float charger
Low Battery Disconnect Voltage 19 V (+/- 1 volt)
Standby Battery Capacity
Installation-dependent. Refer to Determining the Standby Battery Capacity to
determine the amp hour rating of the standby batteries.
Standby Battery Charge Voltage 27.6 V nominal, temperature-compensated and current-limited
Charge Current Maximum charging current of standby batteries.
5.25 Amp Power Supply 1.25 A
10.25 Amp Power Supply 2.25 A
Standby Battery Loads
Standby battery loads are generated by measuring the series battery current of the power supply following a
power failure condition. Standby and alarm current of the Aura Fire Alarm ControlPanel can include all or part of
the following loads:
Loads Standby Current Alarm Current
5.25 A Power Supply 78 mA 78 mA
10.25 A Power Supply 80 mA 80 mA
Dual Loop Panel Module 115 mA 115 mA
NAC Outputs 0 mA (per output) 2500 mA (per output)
Aura Fire Alarm ControlPanel *
350 mA max 450 mA max
335 mA typical 435 mA typical
Zone LED Module 5 mA 5 mA + 3 mA per LED
Aura Network Module 80 mA 80 mA
Aura Printer 0 mA 1500 mA (only during printing)
* LCDMain Processor Board, Main Back Board, System APanel Module, System BPanel Module
SHIELD Fire, Safety & Security Ltd
Aura Fire Alarm Control Panel Installation Manual
Version 1.00 |June 2019 |MAN-1431VS
Page 108
Appendix A: Specifications