Power Supplies


Wheelock 6-Amp and 8 Amp Power Supplies

The Wheelock POWERPATH PS-6, PS-8, and PS-8-LP are 24VDC, filtered and regulated, supervised remote power supply/battery chargers and used for supervision and expanded power driving capability of Fire Alarm Notification Appliance Circuits. The PS-6 provides 6 amps of power distributed across 4 outputs, while the PS-8 and PS-8-LP provides 8 Amps across 4 outputs. In addition the PS-8 provides additional room in the chassis for accessories like an Addressable Control Module, with mounting studs.

The Power Supplies may be connected to any 12V or 24V (FWR or DC) Fire Alarm Control Panel (FACP) by using a Notification Appliance Circuit (NAC) or a “Dry Contact”. Primary applications include NAC expansion (supports ADA requirements) and auxiliary power to support system accessories. This unit provides filtered and regulated 24VDC, up to four (4) Class “B”, two (2) Class “A”, or two (2) Class “B” and one (1) Class “A” Notification Appliance Circuits. With the optional plug-in PS-EXP module the unit supports (8) Class “B” or (4) Class “A” Notification Appliance Circuits. Additionally, there is an auxiliary power output of 2.5 Amps (disconnected upon AC power loss or an alarm condition) or up to 0.240 A of constant power on the PS-8 and PS-8-LP and 0.075 A of constant power on the PS-6.

New - Low profile, 8 amp power supply - PS-8-LP

Catalog Number PS-8-LP, PS-8E-LP, PS-8-B-LP, PS-8E-B-LP, PS-8-EXP-LP, PS-8E-EXP-LP, PS-8, PS-8B, PS-8EXP, PS-6, PS-6B, PS-6EXP
Finish Color Red or Black
Input Current 0.005 amps
Input Voltage Range 8-33 VDC or VFWR
Standby and Alarm Current 0.129 Amps
Primary PS-8 & PS-8-LP (120 VAC) 105 to 130 VAC 50/60 Hz @ 5.32 Amps
Primary PS-6 (120 VAC) 105 to 130 VAC, 50/60 Hz @ 4.25 Amps
Dimensions 17"H x 15"W x 5.5"D (PS-8); 17"H x 13"W x 3.5"D (PS-8-LP,PS-6)
Approvals UL Standard 864, 1481



  • 120VAC, 50/60Hz, 5.32 Amps (PS-8, PS-8-LP) or 4.25 Amps (PS-6) Operating Power in Alarm
  • 240VAC, 60Hz, 3.22 Amps (PS-8, PS-8-LP) or 2.42 Amps (PS-6) Operating Power in Alarm
  • 24VDC Battery Backup Connection
  • Two (2), 12V or 24V NAC Initiating Circuits (8-33V at 5mA) FWR or DC
  • Two (2) “Dry” Contact initiating Circuits
  • Accepts two (2) Class “A” or two (2) Class “B” circuit inputs
  • Built in battery charger for sealed lead acid or gel type Batteries


  • NAC outputs are 24VDC, 3.0 Amps each, power limited
  • Temporal (Code 3), constant voltage output, Wheelock Sync output or True input to output follower mode
  • Built-in Wheelock synchronization mode that can be fed to any or all of the output circuits
  • Input and output can be synchronized with “IN>OUT SYNC” mode (SM, DSM, 2nd POWERPATH™ or FACP with synchronization protocol is required)
  • Audible silence capability