19
VFR-400 • 5403548 • REV W • 8/17
TABLE 2
SECONDARY POWER SUPPLY REQUIREMENTS
Service
Use
Standby
Time
Alarm
Time
NFPA 72
• Central Station (PPU)
24 hrs.
5 mins.
• Local
24 hrs.
5 mins.
FMRC 1011 and 1012, Deluge and Pre-action Systems
90 hrs.
10 mins.
Where requested by FM or others.
90 Hours is not a UL requirement.
CALCULATION TABLE
1 2 3
4
5
6
Module/Device Quantity Standby mA Per Unit Total Standby Current Alarm mA Per Unit Total Alarm Current
TABLE 1
CURRENT REQUIREMENTS
*Add 23 mA plus current requirement of all devices connected for each output programmed as Trouble Bell
**Includes one zone short circuit current.
Use a battery with a higher AH rating than Required AH
Total mA
Convert to A
Total A
5 min/12 or 10 min/6
Total Alarm AH
+ Total Standby AH
Total AH
Efficiency Factor
Required AH
x 0.001
x 0.001
Total mA
Convert to A
Total A
Multiply by hours from table 2
Total Standby AH
÷ ___
÷ 0.80
x ___
Module/Device
Standby mA*
Alarm mA**
VFR-400
121
274
RA-4410RC
11
13
