Power Supply Calculations
DC Current Draw Calculations
32
ACPS-2406 PN 51304:B 09/02/2003
Table 5.2 DC Current Draw Calculations, Output 2
Table 5.3 DC Current Draw Calculations, Output 3
OUTPUT 2
C
ATEGORY
COLUMN A
S
TANDBY
C
URRENT
(
AMPS
)
COLUMN B
A
LARM
C
URRENT
(
AMPS
)
Q
TY
X
CURRENT
DRAW
=
T
OTAL
Q
TY
X
CURRENT
DRAW
=
T
OTAL
Power Supervision Relays (A77-716B)
X =
A
X =
A
4-Wire Smoke Detectors
X =
A
X =
A
4-Wire Smoke Detectors
X =
A
X =
A
Annunciators
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Notification Appliances
N
OT
A
PPLICABLE
X =
A
Notification Appliances
X =
A
Notification Appliances
X =
A
S
UM
EACH
COLUMN
FOR
TOTALS
O
UTPUT
2
S
TANDBY
C
URRENT
TOTAL
:
A
O
UTPUT
2
ALARM
C
URRENT
TOTAL
:
A
Note: S
TANDBY
C
URRENT
T
OTAL
for all outputs together cannot exceed 1.0 A.
A
LARM
C
URRENT
T
OTAL
cannot exceed 2.50 A for any single output.
OUTPUT 3
C
ATEGORY
COLUMN A
S
TANDBY
C
URRENT
(
AMPS
)
COLUMN B
A
LARM
C
URRENT
(
AMPS
)
Q
TY
X
CURRENT
DRAW
=
T
OTAL
Q
TY
X
CURRENT
DRAW
=
T
OTAL
Power Supervision Relays (A77-716B)
X =
A
X =
A
4-Wire Smoke Detectors
X =
A
X =
A
4-Wire Smoke Detectors
X =
A
X =
A
Annunciators
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Auxiliary Devices
X =
A
X =
A
Notification Appliances
N
OT
A
PPLICABLE
X =
A
Notification Appliances
X =
A
Notification Appliances
X =
A
S
UM
EACH
COLUMN
FOR
TOTALS
O
UTPUT
3
S
TANDBY
C
URRENT
D
RAW
TOTAL
:
A
O
UTPUT
3
ALARM
C
URRENT
D
RAW
TOTAL
:
A
Note: S
TANDBY
C
URRENT
T
OTAL
for all outputs together cannot exceed 1.0 A.
A
LARM
C
URRENT
T
OTAL
cannot exceed 2.50 A for any single output.