Overview Features and benefits 2 amp power supply

Overview Features and benefits 2 amp power supply
2 amp power supply
Photo as shown includes optional board(s). Please
contact your local sales office or visit the support section
on our website for configuration assistance.
Features and benefits
Schlage’s comprehensive line of power supplies and option boards were designed to
address the changing needs of the access control market.
2A @ 12/24 VDC output, field selectable with
Class 2 Rated power limited output
Universal 120 - 240 VAC input
Low voltage DC, regulated and filtered
Single polarized connector for distribution
Fused primary input
AC input and DC output monitoring circuit
with LED indicators
Cover mounted AC input indication
Hinged cover with lock down screws
High voltage protective cover
Installation is simplified by utilizing a flat mounting design and polarized locking
connectors for option boards. This new 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.
* All PS900 Series of power supplies and option boards have been tested and certified to meet UL 294.
PS904 power supply specifications
§§ Emergency Interface/Fire Alarm Relay (FA)
§§ Key lock available for added security (KL)
Input voltage
120/240 VAC, 50/60 Hz, universal input
§§ Battery backup
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)
UL 294
Class 2
FCC Part 15
Option board compatibility
900-BB: Battery backup
900-BAT: Backup battery pack
900-BBK: Battery backup kit (backup board and battery pack)
900-FA: Fire alarm
900-2RS*: 2 Relay EL panic device control board
900-4R*: 4 Relay output board
900-4RL*: 4 Relay logic board
900-8F*: Fused 8 zone distribution board
900-8P*: PTC 8 zone distribution board
AC primary fuse size
3.15A, 250v, 5 x 20mm SLOW-BLOW
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.
Distribution board connectors
Fire alarm board connector
§§ 2 relay QEL panic device control board
§§ 4 relay distribution board
§§ 4 relay distribution board with logic
-- Field configurable for:
§§ Time delay function
§§ Auto operator
§§ Security interlock
§§ 8 fused output distribution board
§§ 8 PTC output distribution board
* Optional distribution boards available with or without FA (Fire Alarm Relay)
Allegion, the Allegion logo, Schlage, and the Schlage logo are trademarks of Allegion plc, its subsidiaries and/or affiliates in the
United States and other countries. All other trademarks are the property of their respective owners.
About Allegion
Allegion (NYSE: ALLE) creates peace of mind by pioneering safety and security. As a
$2 billion provider of security solutions for homes and businesses, Allegion employs
more than 7,800 people and sells products in more than 120 countries across the world.
Allegion comprises 23 global brands, including strategic brands CISA®, Interflex®, LCN®,
Schlage® and Von Duprin®. For more, visit www.allegion.com.
© 2014 Allegion
004195, Rev. 02/14
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