126
NFW-50X Manual —
P/N LS10129-001NF-E:C 7/25/2018
Power Supply Calculations
Calculating the System Current Load
Device Type
Calculation Column 1
Primary (AC) Power Source
Fire Alarm Current (amps)
Calculation Column 2
Secondary (Battery) Power Source
Fire Alarm Current (amps)
Calculation Column 3
Secondary (Battery) Power Source
Standby Current (amps)
Qty
X[current draw]=
Total
Qty X [current draw]=
Total
Qty
X [current draw]=
Total
Main Circuit Board
1
1
X[0.257]=
1
X[0.141]=
IPOTS-COM Communicator
[ ]
X[0.041]=
[ ]
X[0.041]=
[ ]
X[0.040]=
CELL-MOD/CAB-N
[ ]
X[0.100]=
[ ]
X[0.100]=
[ ]
X[0.055]=
N-ANN-80
[ ]
X[0.040]=
[ ]
X[0.040]=
[ ]
X[0.015]=
N-ANN-100
[ ]
X[0.025]=
[ ]
X[0.025]=
[ ]
X[0.020]=
N-ANN-(R)LED
[ ]
X[0.068]=
[ ]
X[0.068]=
[ ]
X[0.028]=
N-ANN-RLY
[ ]
X[0.075]=
[ ]
X[0.075]=
[ ]
X[0.015]=
N-ANN-I/O
[ ]
X[0.200]=
[ ]
X[0.200]=
[ ]
X[0.035]=
N-ANN-S/PG
[ ]
X[0.045]=
[ ]
X[0.045]=
[ ]
X[0.045]=
4XTM
[ ]
X[0.011]
2
=
[ ]
X[0.011]=
[ ]
X[0.005]=
4-wire Detector Heads
[ ]
X[ ]=
[ ]
X[ ]
3
=
[ ]
X[ ]=
Power Supervision Relays
4
[ ]
X[0.025]=
[ ]
X[0.025]=
[ ]
X[0.025]=
NI-100, FSI-851
maximum alarm draw
for all devices =
0.200
maximum alarm draw
for all devices =
0.200
[ ]
X[0.00030]=
NP-100, NP-200,
FSP-851, FSP-951
[ ]
X[0.00030]=
NP-100T, NP-200T,
FSP-851T, FSP-951T
[ ]
X[0.00030]=
NP-A100, FAPT-851
[ ]
X[0.00030]=
NH-100, NH-200,
FST-851, FST-951
[ ]
X[0.00030]=
NH-100R, NH-200R,
FST-851R, FST-951R
[ ]
X[0.00030]=
NH-100H, NH-200H,
FST-851H, FST-951H
[ ]
X[0.00030]=
ND-100, FSD-751PL
[ ]
X[0.00030]=
ND-100R, FSD-751RPL
[ ]
X[0.00030]=
B501BH & B501BHT
5
[ ]
X[0.001]=
B224RB
[ ]
X[0.00050]=
B224BI
[ ]
X[0.00045]=
NMM-100, FMM-1
[ ]
X[0.00040]=
XP10-M
[ ]
X[0.00350]=
NDM-100, FDM-1
[ ]
X[0.00075]=
NMM-100P, FMM-101
[ ]
X[0.000375]=
NZM-100, FZM-1
[ ]
X[0.00027]=
NZM-100-6, XP6-MA
[ ]
X[0.00200]=
NOT-BG-12LX, NBG-12LX
[ ]
X[0.00030]=
NC-100/FCM-1
[ ]
X[0.00039]=
XPC-6
[ ]
X[0.00225]=
NC-100R/FRM-1
[ ]
X[0.00027]=
XPR-6
[ ]
X[0.00145]=
N-100ISO, ISO-X
[ ]
X[0.00040]=
ISO-6
[ ]
X[0.00045]=
FWSG
[ ]
X[0.040] or [0.024]
6
NAC #1
7
[ ]
X[ ]=
[ ]
X[ ]=
NAC #2
[ ]
X[ ]=
[ ]
X[ ]=
FCPS (remote sync)
[ ]
X[0.02]=
[ ]
X[0.0217]=
Current Draw from TB3
[ ]
[ ]=
[ ]
[ ]=
[ ]
[ ]=
Sum each column for totals
AC Powered,
Fire Alarm Load
8
=
Battery Powered,
Fire Alarm Load
9
=
Battery Powered,
Standby Load
10
=
Table 9.3 System Current Load Calculations
1 Main board with display only.
2 If using the Reverse Polarity Alarm output, add 0.005 amps; if using the Reverse Polarity Trouble output, add another 0.005 amps.
3 Refer to the Device Compatibility Document for standby current.
4 Must use compatible listed Power Supervision Relay.
5 Maximum alarm current for each sounder base is 0.015 amps which must be supplied by aux. 24VDC source.
6 When powered by an external source, use 0.040A. When powered by the SLC, use 0.024A.