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Von Duprin

PS902-FA Power Supply

PS902-FA (EA/1)

2 AMP power supply, Plug-in fire alarm (install on main or option board)

List Price: $324.00

58 In Stock
Availability by Warehouse
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PS900 Series

2 Amp Power Supply

The Schlage comprehensive line of power supplies and option boards was designed to address the changing needs of the access control market.

Installation is simplified by utilizing a flat mounting design and polarized locking connectors for option boards. This design eliminates the need for racks and side connectors. The flat mounting of the option boards also provides for easier access to the terminal blocks for connection of electrified devices (such as electrified strikes, electromagnetic locks, card readers, etc.).

Common to the line of PS900 Series power supplies is a constant output rating at both 12v and 24v settings, universal 120 VAC to 240 VAC input, and polarized option board connectors. New fire alarm interface board mounting allows outputs to be configured as switched (power cut) or unswitched (power continues) when signal is provided.

Features and Benefits:
  • 2A @ 12/24 VDC constant output, field selectable with jumper
  • Provides low-voltage, Class 2, filtered and regulated power
  • Universal 120-240 VAC, fused primary input
  • Single polarized option board connector
  • AC input and DC output monitoring circuit with LED indicators
  • Externally visible AC input indicator with isolated SPDT contacts
  • High-voltage protective cover for AC circuitry (not shown)
  • Battery back-up board auto-selects voltage
  • Optional Fire Alarm plug-in board available
  • UL 294, ULC-S318, RoHS, and FCC Part 15 certified
PS902 power supply specifications
Input voltage:

120/240 VAC, 50/60 Hz, universal input

Output voltage:
  • 2A @ 12 or 24 VDC
  • Field selectable with jumper
  • Switching supply, 5% regulation, 240mVpp max ripple
  • Grey/baked enamel
  • 14" x 12" x 4" (H x W x D)
  • Eight 1/2" x 3/4" knockouts
  • NEMA Grade 1
  • Hinged cover with lock down screws
Operating temperature:

32° - 120°F (0° - 49°C)

  • ANSI/UL 294
  • ULC-S318
  • RoHS
  • FCC Part 15
  • Class 2
Battery backup (install on main board):
  • 900-BB: Battery backup board only
  • 900-BBK: Battery backup kit (backup board plus battery pack)
Available option boards:
  • 900-FA: Plug-in fire alarm (install on main or option board)
  • 900-2RS: 2 Relay option board capable of individual or sequential operation for single and pair door applications
  • 900-4R: 4 Relay option board
  • 900-4RL: 4 Relay option board with integrated logic and individual or sequential operation capability for controlling security interlocks, auto operators, and time delay function
  • 900-8F: Fused, 8 zone option board
  • 900-8P: PTC, 8 zone option board
AC primary fuse size:

3.15A, 250v, 5 x 20mm

Battery fuse size:

7.5A 32v ATO blade style

DC output protection:

Overload protection - current limited foldback circuit

  • LED indicators:
    • AC input (visible on outside of enclosure)
    • DC output
  • Isolated SPDT contacts to monitor AC power status
Weight (power supply):

Approx. 9.0 lbs

Weight (each battery):

4.0 lbs

AC input termination:
  • 3 position terminal block with protective cover
  • Wire capacity: 10 AWG max.
DC output termination:
  • 2 position terminal block
  • Wire capacity: 12 AWG max.
Option board connectors:


Fire alarm board connector:





900-BAT: Backup battery pack


PS902-FA Power Supply

Product Type: Access Control Part/Accessory

Manufacturer: Von Duprin

Voltage: 12/24 Volt


PS902-FA Power Supply