Home  >  Products   >  Fire Alarm Power Supplies and Communicators

Fire Alarm Power Supplies and Communicators


The HPF24S6 is a compact, cost-effective, 6-amp remote power supplies with a battery charger built in. It may be connected to any 12- or 24-volt Fire Alarm Control Panel (FACP) or may stand alone. Primary applications include Notification Appliance (bell) Circuit (NAC) expansion (to support ADA requirements and NAC synchronization)
or auxiliary power to support 24-volt system accessories.

The supply provides regulated and filtered 24 VDC power
to four Notification Appliance Circuits configured as either four Class B (Style Y) or Class A (Style A, with ZNAC-4 option module). Alternately, the four outputs may be configured as all non-resettable or all resettable or two non-resettable and two resettable. They also contains a battery charger capable of charging up to 18 Amp Hour batteries.

Data Sheet - (34 KB PDF)
Drawing with MOD - (1 MB DWG)
Drawing - (193 KB PDF)
Drawing - (914 KB DWG)
Installation Instructions - (1957 KB PDF)
Field Software Change Procedures - (79 KB PDF)
HPF24S6 Battery Calculation Spreadsheet - (151 KB ZIP)
HPF24S8 Battery Calculation Spreadsheet - (151 KB ZIP)

Primary (AC) Power
– 120 VAC 60 Hz, 3.2 A maximum
– Wire size: minimum 14 AWG (2.0 mm²) with 600V insulation.
Control Input Circuit
– Trigger Input Voltage: 9.0 to 32 VDC.
– Trigger Current: 2.0 mA (16 - 32 V).
– (per input) 1.0 mA (9 - 16 V).
Trouble Contact Rating – 5.0 A at 24 VDC.
Auxiliary Power Output – Specific Application Power - 500 mA maximum.
Output Circuits
– +24 VDC filtered, regulated.
– 3.0 A maximum for any one circuit.
– 4.0 A maximum total continuous current for all outputs (Stand-alone mode)
– 6A or 8A (depending on model) maximum total short-term current for all outputs (NAC Expander mode).
Secondary Power (Battery) Charging Circuit
– Supports lead-acid batteries only.
– Float Charge Voltage: 27.6VDC.
– Maximum Charge Current: 1.5 A.
– Maximum Battery Capacity: 18 AH.
UL Listed NAC Synchronization using System Sensor, Wheelock or Gentex (Commander Series) appliances.
Cascade up to 10 power supplies (four with Gentex) with strobe timing maintained.
Operates as a sync follower or a sync generator (default).
Contains two, fully-isolated input/control circuits (triggered from FACP Notification Appliance Circuit [NAC expander mode] or jumpered permanently on [standalone mode]).
Configured to internally house addressable SLC control module for alarm activation.
Four Class B (Style Y) or four Class A (Style Z) (with ZNAC- 4 Module) Notification Appliance Circuits.
6.0A or 8A (depending on model) full load output (3.0 A maximum per circuit) in NAC expander mode (UL 864).
4.0A or 6.0A continuous output in stand-alone mode (UL 1481).
In stand-alone mode, output power circuits may be configured as resettable (reset line from FACP required) or n onresettable or a mix of two and two.
Fully regulated and filtered power output (optimal for powering four-wire smoke detectors, annunciators and other system peripherals requiring regulated/filtered power).
Power-limiting technology meets UL power-limiting requirements.
Form-C normally-closed trouble relay.
Fully supervised power supply, battery and Notification Appliance Circuits.
Selectable earth fault detection.
AC trouble report selectable for immediate or 8 hour delay.
Works with virtually any UL 864 fire alarm control which utilizes an industry-standard reverse-polarity notification circuit (including unfiltered and unregulated bell power).
Requires input trigger voltage of 9.0 - 32 VDC.
Self-contained in compact, lockable cabinet (15" [38.1 cm] H x 14.5" [36.8 cm] W x 2.75" [7.0 cm] D).
Includes integral battery charger capable of charging up to 18 AH batteries. Cabinet capable of housing 7.0 AH batteries.
Battery charger may be disabled via dip switch for applications requiring larger batteries.
Fixed, clamp-type terminal blocks accommodate up to 12 AWG (3.1 mm²) wire.
UL Listed: UOXX.S6677, UTRZ.S6677
CSFM: 7315-1637:102
FM Approved


The Honeywell Corporation



Where to Purchase Our Products

Find a local sales office or convenient distributor near you.