LifeSafety Power B100

B100 INSTALL MANUAL 3
B100 Current Loading
Example: 1
An FPO250 set for 24V is powering a B100. The B100 is set for
an output of 12V and has a 3A total load connected.
PO = 12V*3A = 36W
PI = 36W * 1.15 = 41.4W
In this example, the B100 will draw 41.4W from the FPO250
This leaves 208.6W available from the FPO250
Example: 2
What size FPO do I need to create a dual voltage power supply
providing 12V@4A and 24V@6A?
12V x 4A x 1.15 = 55.2 Watts
24V x 6A = 144 Watts
144W + 55.2W = 199.2W
The next greater FPO to 199.2 is 250
Use an FPO250 power supply with the B100 converter
Example: 3
What size FPO do I need to create a dual voltage power supply
providing 12V@1A and 24V@3A?
12V x 1A x 1.15 = 13.8 Watts
24V x 3A = 72 Watts
13.8W + 72W = 85.8W
The next greater FPO to 84 is 150
Use an FPO150 power supply with the B100 converter
Power drawn from the B100 subtracts from the power available from the FPO supplying the B100. The most accurate
way to determine the draw from the FPO is to calculate the actual power draw and factor in the efficiency of the B100.
PI = PO*1.15
Where:
PI = Input power of the B100
PO = Output power draw on the B100
B100 Current Load Examples