Current-Load
The current-load of the Sigma A-CP Fire Control Panel is limited to 4.5 Amps of the power supply and 7
AH or 12 AH of the standby-batteries. Each NAC output of the Sigma A-CP Fire Control Panel is load
dependent and limited to a maximum load-current of 2.5A.
Standby-batteries of 7 AH can provide an operating duration of twenty-four hours followed by five
minutes of alarm when the standby current does not exceed 225 mA.
Standby-batteries of 12 AH can provide an operating duration of twenty-four hours followed by five
minutes of alarm when the standby current does not exceed 400 mA.
Standby and alarm current can include all or part of the following loads but cannot exceed the total
maximum
currents specified:
Loads
Standby Current
Alarm Current
FACP
100 mA
120 mA with Dialer
680 mA (Current does not include loads
from NACs and Aux 24 V) Value
represents load with Dialer and is
obtained from shorting two zone outputs
together. A higher current level occurs by
shorting eight zone outputs.
NAC Outputs
0 mA (per NAC output)
2.5 A, per NAC output with 4 A of NAC 1
and NAC 2 combined
AUX 24 V
105 mA (7 AH batteries with Dialer)
125 mA (7 AH batteries without Dialer)
280 mA (12 AH batteries with Dialer)
300 mA (12 AH batteries without
Dialer)
500 mA
Total Maximum Current 225 mA (7 AH batteries)
400 mA (12 AH batteries
5.18 A
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