
CAT. SA520B
ARCHITECTURAL AND ENGINEERING SPEC
TECHNICAL SPECS
SHIPPING SPECS
INSTALLATION OF ALARM
The smoke alarm shall be a BRK Model SA520 (cat. no. SA520B) and shall provide at a
minimum the following features and functions:
1. A photoelectric smoke sensing chamber.
2. Wireless interconnect: 915 MHz frequency with 65,000 security codes and 3
channel frequency hopping.
3. Operates on a Mesh Network; a two-way communication format that sends,
receives and re-sends the alarm signals providing a more reliable network.
4. A fully screened sensing chamber to resist entry of small insects.
5. Powered by 120V AC, 60Hz and have a monitored AA battery backup 2, a solid state
horn rated at 85dB at 10 ft and should be capable of self restoring.
6. A visual LED power-on indicator to confirm unit is receiving power or is in alarm.
7. Two Silence features - Low Battery Silence: Silence low battery chirp for up to 8
hours. Alarm Silence: Temporarily silence unwanted nuisance alarms.
8. Two Locking features - tamper resistant locking pins that lock battery drawer and/
or alarm to mounting bracket.
9. The unit shall be capable of operating between 40°F (4°C) and 100°F (38°C) and
relative humidity between 10% and 95%.
10. The unit shall have a plug in connector and be capable of interconnection of up to
18 alarms, 12 of which can be smoke alarms.
11. The unit shall contain mounting hardware and shall be listed for wall or ceiling
mounting.
12. The unit shall at a minimum meet the requirements of UL217, CSFM, NFPA 72,
NFPA 101, ICC.
Alarm Dimensions: 5.0”Dia. x 2.0”H
Weight: 9.3 oz
Operating Voltage: 120V AC with battery backup (Two 1.5V AA Batteries)
Temperature Range: 40°F (4°C) to 100°F (38°C)
Humidity Range: 10% to 95% relative humidity (RH)
Audio Alarm: 85dB at 10 feet
Wireless Frequency: 915 MHz. FCC approved. Complies with Part 15 of the
FCC Rules.
RF Linking: Automatic with 65,000 security codes
Test/Silence: Electronically simulates smoke condition, causing the
unit to alarm. Press and hold test/silence button.
Alarm Reset: Automatic when smoke clears
Smoke Sensor: Photoelectric
Interconnections: Up to 18 units, RF or hardwired (needs SA520B Bridge
Unit), with smoke, carbon monoxide, heat alarms
and relays. Maximum 12 smoke alarms.
Listing: Listed to UL217 Standard
Individual Carton Dimensions 5.13”L x 2.38”W x 5.13”H
Weight 0.74 lbs.
Cube 0.04 ft3
UPC 0 29054 00205 1
Master Carton Dimensions 10.75”L x 7.88”W x 11.06”H
Master Pack 12
Weight 9.4 lbs.
Cube: 0.54 ft3
I2of5: 100 29054 00205 3
Pallet Information
Cases per Layer 22
Number of Layers: 4
Cases per Pallet: 88
Units per Pallet: 1,056
Cube: 54 ft3
Weight: 882 lbs.
Installation of this smoke alarm must conform to NFPA 72. Always check your local
building codes. Follow all instructions for placement as outlined in the user’s manual in
sections titled “Recommended Locations for Smoke Alarms” and “Locations to Avoid for
Smoke Alarms”.
THE PARTS OF THIS ALARM
TOP OF ALARM
1. Test/Silence button
2. Slide open battery drawer
3. Alarm LED
4. Power LED
5. Horn
BOTTOM OF ALARM
1. Mounting bracket
2. Mounting Slots & Locking
tabs (Break out Tab)
3. Battery Drawer - Install 2 AA
batteries here
4. Twist to attach and remove
alarm from bracket
MOUNTING
BRACKET
TOP VIEW SIDE VIEW
5.0”
2.0”
5
3
1
2
4
TOP BOTTOM
BATTERY DRAWER LOCK
Remove pin from mounting bracket. Close door. Insert
pin in holes through alarm and battery drawer.
©2015 BRK Brands, Inc. a Jarden Corporation Company (NYSE:
JAH); 3901 Liberty Street Road Aurora, IL 60504-8122; All rights
reserved. First Alert is a registered trademark of the First Alert
Trust. BRK is a registered trademark of BRK Brands, Inc.
CM3226
brkelectronics.com
This product is intended for non-professional do it yourself installation. If you
would like information about a professionally installed and monitored system,
please contact First Alert Professional at 1-800-921-6025. First Alert Profes-
sional is not affiliated with BRK Brands, Inc.