I. Model Numbers
18Ah28.2VAC2.50A36Ah2.5A24VDCPS5-24025-B07-UL/CSA/ULC 01347
36Ah17.5VAC1.25A36Ah2.5A12VDCPS5-12025-B07-UL/CSA/ULC 01339
Max.
Battery
Storage
XFMR
Voltage
Max. AC
Input
Current
Max.
Battery
Capacity
System
Current
System
VoltageModel Number
AS
Order
No.
UL1481 - Power Supply/Battery Charger, Guide UTRZ
Power Supply/Battery Charger for use with Listed devices shown in Addendum "A".
UL294 - Access Control Systems Unit Accessory, Guide ALVY
Power Supply/Battery Charger for Access Control Applications
ULC-S527 - Fire Alarm Power Supply/Battery Charger
CSA C22.2 No. 107.1 - Commercial and Industrial Power Supply
* UL Listed Products comply with NFPA 72 - National Fire Alarm Code.
II. Installation Instructions
1. Mount cabinet per mechanical dimensions and knockout locations given in Section IV.
2. Connect 120VAC, 60Hz., single phase to the black and white leads of the transformer in accordance
with Article 725 or Article 760 of the National Electrical Code or Article 16 or 32 of the Canadian
Electrical Code.
3. Low Volt AC Input - Connected to secondary winding of the transformer.
v Fused at 10 Amps (Fuse Type AGC-10)
4. Verify output voltage at "DC Output" and "Battery" terminals.
12V system measures approximately 13.8VDC.
24V system measures approximately 27.6VDC.
5. Connect battery set to "Battery" terminals.
CAUTION: Observe polarity; incorrect polarity will destroy battery fuse.
Fused at 10 Amps (Fuse Type AGC-10).
Recommended battery type - PowerSonic (PSSeries) or YUASA (NPSeries) sealed lead acid/gel cell.
The Battery terminals are Nonpower limited. Wiring of the batteries must conform to the Power Limited
Wiring Requirements in Section V, and to Article 760 of the National Electrical Code or Article 16 of the
Canadian Electrical Code.
6. Connect "DC Output" to input of user system.
CAUTION: Observe polarity; incorrect polarity may damage user system.
Refer to Section I for Maximum Allowable System Current.
Output terminals are POWER LIMITED
7. Visual Indicators:
AC Presence LED1: Green LED
System OK LED3: Green LED
LED2 (Red LED) serves no user function.
8. Connect "Fault Output" to system fault annunciation.
Form "C" Relay Contacts rated 1 Amp @ 24VDC resistive
Relay Contacts labeled in the non-operational (fault) condition.
Fail-safe; active until an actual fault condition.
9. Fault Conditions: Low AC / No AC / Blown AC Fuse / Low Battery / Blown Battery Fuse
CAUTION: Fault condition reporting may be delayed dependent on power supply loading.
The battery set is NOT supervised for presence.
10. Battery Standby Information:
a) For 60 hr. standby with 36Ah battery set - Max standby draw: .5A, Max 5 minute alarm current: 2A.
b) For 24 hr. standby with 36Ah battery set - Max standby draw: 1A, Max 5 minute alarm current: 2A.
c) For 4 hr. standby with 20Ah battery set - Max standby draw: 2.5A, Max 5 minute alarm current: 2.5A.
11. Power Supply System Draw (No AC, No load) is 25mA.
III. Typical Hook-up Diagrams
Power Supply/Battery Chargers
Installation Instructions
AlarmSaf w 65A Industrial Way w Wilmington, MA USA 01887-3499 w (978) 658-6717 w FAX: (978) 658-8638 Web Site: www.alarmsaf.com
52-133X
090897
AC FUSE (AGC-10)
BATT FUSE (AGC-10)
LOW
VOLT
AC
CONNECT
BATTERY
CONNECT
+
_
DC
OUTPUT
+
_
NC
C
NO
FAULT
OUTPUT
PS5-XX025
Input and Output Terminals
Low Volt AC Input Terminals
and Battery Terminals are
Nonpower-Limited
DC Output Terminals and Fault
Output Terminals are
Power Limited
Caution
For continuous protection against
fire hazard, replace only with the
same type and rating of fuse
IV. Mechanical Drawing
2.14
4.28
2.60
1.25
2.70
1.25
1.25
16.38
6.94
6.94
4.28
1.94
1.94
4.28
1.25
3.47
16.38
.75
.75
14.00
.75
1.00
KEY LOCK
3.47 3.47
3.47
V. Power Limited Wiring Requirements
VI. Troubleshooting Guide
Fault Output
v Form "C" Relay Contacts rated 1 Amp @
24VDC.
v Relay Contacts labeled in the non-operational
(fault) condition.
v Fail-safe; active until an actual fault condition.
Visual Indicators
1. AC Presence LED1: Green LED
2. System OK LED3: Green LED
3. LED2 (Red LED) serves no user function.
Fault Conditions
Green LED extinguishes on:
Low AC / No AC / Blown AC Fuse
Low Battery / Output
Blown Battery Fuse
VII Troubleshooting Chart
Rewire battery set.Incorrect battery
hook-up.
Remove primary power and batteries, then
replace fuse. CAUTION.
Blown battery fuse.4) No battery back-up
Verify switch settings in Section III.Incorrect switch
setting.
Measure xfmr secondary voltage. If not within
proper range, replace transformer.
Incorrect or defective
xfmr.
Rewire battery set.Incorrect battery
hook-up.
Remove system load and batteries; check
system output voltage. If OK recheck system
requirements, and/or measure output current
draw with an ammeter.
The system load is
greater than the
supply capability.
Check battery condition and replace if needed.Defective battery.3) Incorrect output voltage
Check xfmr secondary voltage at PC board
"Low Voltage AC Connection". If voltage is not
present, replace xfmr.
Loss of transformer
(xfmr) power.
Remove primary power and batteries, then
replace fuse. CAUTION.
Blown AC fuse.
Check AC primary supply.Loss of AC power.2) Green "AC" LED is not
illuminated.
See Symptom 4.Blown battery fuse.
See Symptom 3.Low battery."Fault" Relay Contacts transfer.
See Symptom 2.Low AC / No AC /
Blown AC fuse.
1) Green "System OK" LED
extinguishes.
Correction ProcedurePossible CauseSymptoms
Power Supply/Battery Chargers
Installation Instructions
AlarmSaf w 65A Industrial Way w Wilmington, MA USA 01887-3499 w (978) 658-6717 w FAX: (978) 658-8638 Web Site: www.alarmsaf.com
52-133X
090897
AC FUSE (AGC-10)
BATT FUSE (AGC-10)
Power-limited and nonpower-limited circuit wiring must remain separated by at least 0.25" within the cabinet.
All power-limited circuit wiring and nonpower-limited wiring must enter and exit the cabinet through different
knockouts. An example is shown below, although different knockouts may be used. The use of conduit is
optional for power-limited wiring.
AC Primary Power
Wiring
(Nonpower-limited)
Run through either
knockout at the top
left corner.
Output Circuit
Wiring
(Power-limited)
Run through either
knockout on the
right side.
For further assistance, please contact the AlarmSaf Technical Service Department.
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