Data Sheet for Product

Distributed Power Supply  NAC Extender (Model PAD-3 series) 3362
s Industry, Inc.
Building Technologies Division
s
Data Sheet
Fire Safety & Security Products
FACP Accessories
PAD-3 Distributed Power Supply Unit
Notification Appliance Circuit Extender
Models PAD-3, PAD-3R, PAD-3-MB, EN-PAD and E N-PAD-R
Product Overview Specifications
Used with Siemens  Fire Safety fire alarm control
panels (FACPs), the Distributed Power Supply Unit
(Model PAD-3 series) is a NAC expander with a built-
in, auxiliary-power output. Each unit is designed to
provide additional power for visual indicators in
buildings that conform to the Americans with
Disabilities Act (ADA).
Each Model PAD-3-series unit provides the following
physical characteristics:
 NACs
 Unit enclosure
 Signal-input circuits
 Battery-charging circuit
 Trouble relays for remote monitoring
 Diagnostic light-emitting diodes (LEDs)
 Alternating Current (AC) power connection
The Siemens NACs, which connect with alarm
signaling devices, have been designed to provide the
highest level of reliability and performance.
Each unit provides 6A @ 24VDC power for multiple
uses, and all 6 Amps can be directed to four (4)
NACs. Each NAC is power limited; rated at 3A. Either
one (1) or two (2) inputs can control the four (4)
outputs. These outputs are compatible with all
Siemens
 Fire Safety 24VDC notification appliances.
In order to makes the outputs easily programmable,
this version of the Siemens Auxiliary Power Supply
(Model PAD-3)
can be configured in the following
manner:
 ‘STEADY’ outputs
 Synchronized strobe outputs
 American National Standards Institute (ANSI) Temporal 3
ARCHITECT AND ENGINEER SPECIFICATIONS
 Multi-module mounting in System 3™ enclosures
 Multiple modules share battery set
 Americans with Disabilities Act (ADA) Compliant
 UL 864 9
th
Edition Listed, ULC S527-11 Listed;
FM, CSFM & NYC Fire Department Approved
Model EN-PAD
[Black enclosure]
 24VDC output voltage
 Ground-fault detection
 Advanced microprocessor control
 Power supply supports NAC power
 Up to 6A @ 170W, via Siemens Model PAD-3
 3 Amps of auxiliary-power output
 ‘Form C’ Trouble monitoring dry contact
 Four (4), power-limited notification appliance circuits (NACs)
 Power supply supports NAC power
 Up to 6A @ 170W, via Model PAD-3
 Optional built-in strobe synchronization
 Supports coded audible signals including
Temporal 3 pattern
 Battery supervision and control
 Packaged in self-contained, sheet-metal enclosure
 Easily capable to house the required 7AH back-up battery set
PAD-3-MB