FS-100 Installation & Operation Manual
P/N 315-699461 41
Total Standby Current
(from above)
Hours of Standby Required per
NFPA 72 Standard (4, 24 or 60)
AH for Standby
A. x ____ Hours =
Total Alarm Current
(from above)
5 Minutes of Alarm Operation
per NFPA 72 Standard*
AH for Alarm
A. x 0.33 Hours =
A.H. for
Standby
A.H. for
Alarm
Calculated
A.H.
De -rating
Factor
A.H. Required
Battery Capacity
+ = X 1.25 =
Notes:
1. An additional multiplier is included to compensate for the higher discharge rate in alarm. Battery capacity decreases with age.
2. The Standby current + Alarm current must never exceed 3.0 Amps
3. The following states the maximum standby current allowed using a 38 AH battery set:
60 hours of standby time is 0.5 Amps
24 hours of standby time is 1.2 Amps
4. Does not include lamp or LED current, add separately.
5. When using the FS-MT Municipal Tie Module add the following currents for standby and alarm:
Type of Municipal Tie Connection Standby Alarm
Local Energy + 0 + 0
Reverse Polarity Alarm Output (CA)
Alarm
Alarm w/Trouble
+ 0.020
+ 0
+ 0.020
+ 0.020
Reverse Polarity Trouble Output (CT) + 0.020 + 0.020
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