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R
333 Bayview Avenue
Amityville, New York 11701
For Sales and Repairs, (800) 645-9445
For Technical Service, (800) 645-9440
© NAPCO 2005
DESCRIPTION
This variable-purpose power supply is suitable for many differ-
ent applications for security, access control and CCTV system
accessories that need supplementary power.
power supply/charger converts low voltage AC input into 6VDC,
12VDC or 24VDC @ 5 amps of continuous supply current (see
features). .
FEATURES
•
Maximum charge current 300mA.
•
Automatic switch over to stand-by battery.
•
Battery short circuit protection (circuit breaker).
•
Thermal overload and short circuit protection.
•
AC input and DC output LED indicators.
•
Extremely compact design.
•
Includes battery leads.
•
Dip switch selectable 6VDC-12VDC-24VDC output.
•
5 amps continuous supply current at 6VDC-12VDC-24VDC*.
•
Filtered and electronically regulated output.
•
Built-in charger for sealed lead acid or gel type batteries.
Board dimensions: 96.52mm L x 76.20mm W x 60mm H
VOLTAGE OUTPUT/TRANSFORMER SELECTION TABLE
Output
Voltage
6VDC @ 5 amps continu-
ous supply current
12VDC @ 5 amps con-
tinuous supply current
24VDC @ 5 amps con-
tinuous supply current
Note: Transformers with higher VA ratings may be used for all output voltages
above as long as you do not exceed 28VAC.
*
Specified at 25° C ambient.
INSTALLATION INSTRUCTIONS
The NP-P5A should be installed in accordance with The National
Electrical Code and all applicable Local Regulations.
1. Mount the NP-P5A in desired location/enclosure.
2. Set DC output voltage with dip switches (refer to Voltage Output/
Transformer Selection Table).
5 AMP POWER SUPPLY / CHARGER
The NP-P5A
Dip Switch
Transformer /
Position
Output Rating
P-TRF1650
1. OFF
2. OFF
P-TRF28100
1. ON
2. OFF
P-TRF28175
1. ON
2. ON
NP-P5A
3. Connect proper transformer to terminals marked [AC]. (Refer to
Voltage Output/Transformer Selection Table). Use 18 AWG or
larger for all power connections (Battery, DC output).
Keep power limited wiring separate from non-power limited
wiring (115VAC / 60Hz Input, Battery Wires). Minimum .25"
spacing must be provided.
4. Connect devices to be powered to terminals marked [+ DC -].
Note: It is important to measure output voltage before connecting
devices to help avoid potential damage.
5. When the use of stand-by batteries are desired, they must be lead
acid or gel type. Connect battery to terminals marked [+ BAT -] on
the unit (battery leads included). Use two (2) 12VDC batteries
connected in series for 24VDC operation.
Note: When batteries are not used, a loss of AC will result in the
loss of output voltage.
LED DIAGNOSTICS
Red
Green
(DC)
(AC)
ON
ON
Normal operating condition.
ON
OFF
Loss of AC, Stand-by battery supplying power.
OFF
ON
No DC output. Short circuit or thermal overload condition.
OFF
OFF
No DC output. Loss of AC. Discharged or no battery.
TERMINAL IDENTIFICATION
Terminal
Legend
AC
Low voltage AC input (see Voltage Output/Transformer Selection Table).
For 6VDC output use 16VAC or higher with 50VA power rating or higher.
For 12VDC output use 28VAC with 100VA power rating or higher.
For 24VDC output use 28VAC with 175VA power rating or higher.
Caution: Do not apply voltages above 28 VAC (28 VAC is maximum input rating)
+ BAT --
Stand-by battery connections. Maximum charge rate 300mA.
+ DC --
6VDC-12VDC-24VDC @ 5 amps continuous supply current.
APPENDIX LIST
Item
Description
1
Instruction Sheet
2
Wire
3
Wire
4
Double Stick Foam Tape
WI1327D 12/05
AC AC BAT BAT DC DC
–
+
– +
Power Supply Status
Function/Description
Dimension Volume
120*80
1
18AWG 22cm
1
18AWG 22cm
1
60*10*7mm
4
Memo
Red
Black
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