BRK® SA520B Hardwired Smoke Alarm With Battery Backup, Photoelectric, 120 VAC 60 Hz with (2) AA 1.5 VDC Battery, LED Display, 85 dB

Smoke Detector Alarms
507586 MFG #: SA520B
First Alert® (BRK)
45.43000 / ea
  • Alarm Type: Audio
  • ARRA Compliant: N
  • Audible Alert: 85 dB
  • Buy American Compliant: N
  • Catalog Number: SA520B
  • Color: White
  • Country of Origin: MX
  • Currency: USD
  • Dimensions: 5.0" diameter x 2.1" height
  • Display Type: LED
  • Enclosure Material: Plastic
  • Environmental Conditions: 10 percent to 90 percent relative humidity (RH)
  • EU RoHS Indicator: Y
  • Gross Weight Per Pack: 0.74 lb
  • Gross Weight per Pack Metric: 0.34
  • Gross Weight UOM Metric: kg
  • Harmonization Tariff Schedule Code: 8531100015
  • Height: 5.13 in
  • Height [Metric]: 13.0302 cm
  • Humidity Rating: 10 to 95%
  • Interconnection Capability: Up to 18 Units
  • Length: 5.13 in
  • Length [Metric]: 13.0302 cm
  • Mounting: Electrical junction box, wall or ceiling
  • Operating Temperature: 40 to 100 °F
  • Operating Voltage: 120V AC 60Hz w/ 3V battery backup
  • Output Current: 120V AC 60Hz w/ 3V battery backup
  • Power Consumption: 120V AC 60Hz w/ 3V battery backup
  • Power Source: 120 VAC 60 Hz with (2) AA 1.5 VDC Battery
  • Sensitivity: Audio Alarm: 85dB at 10 feet
  • Sensor: Photoelectric Smoke Sensor
  • Sensor Type: Photoelectric
  • Standard: UL217
  • Standards: UL 217
  • Standby Current: 120V AC 60Hz w/ 3V battery backup
  • Temperature Range: 40 to 100 °F
  • Type: Wireless Smoke Alarm with Voice and Location
  • UNSPSC: 46191501
  • Visual Alert: Red LED
  • Width: 2.38 in
  • Width [Metric]: 6.0452 cm
  • Wiring Type: Wireless
  • Stock Status: NORMALLY STOCKED
  • Brand: First Alert® (BRK)
  • Manufacturer: BRK Brands, Inc.
BRK SA520B (model SA520) is a wire-in, 120V AC 60Hz single and/or multiple station photoelectric smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories, and other multifamily dwellings as defined in standard NFPA 101. BRK SA520B has been fully tested and complies with, UL217, CSFM, NFPA 72, and NFPA 101 and other agencies that model their codes after the above agencies. It meets building codes where AC with battery backup smoke alarms with wireless interconnect and silence features are required and with model building codes published by the ICC. BRK SA520B is a state of the art wireless smoke alarm designed to provide early warning of a fire. It features a fully insect screened Photoelectric smoke sensing chamber, an 85dB horn, a full function test switch and a silence feature. This smoke alarm interconnects via wired and/or wireless communication. Wireless communication is on a reliable and secure radio frequency of 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping. It operates on a Mesh Network; a two-way communication format that sends, receives and resends the alarm signals providing a more reliable network. It also features tamper resistant locking pins that lock alarm to the mounting bracket and battery drawer to prevent removal of battery or alarm. Perfect for apartment, dormitory or hotel applications. Designed for wall or ceiling mounting.
  • Features
Wireless interconnect enabled alarm
Bridge unit, wireless photoelectric hardwired smoke alarm
Single button test/silence
Two silence features can silence the low battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
Add additional OneLink alarms and hardwired alarms, links all alarms together for a complete system
Hardwired interconnect and RF interconnect reliable and secure radio frequency communication between alarms, 915 MHz frequency with 65000 security codes and 3 channel frequency hopping
Optipath 360 Technology™ patented technology provides 360 deg of direct access to the smoke sensor
Perfect mount allows for easy alignment of alarm
Electronically simulates smoke condition, causing the unit to alarm, press and hold test/silence button
Automatic when smoke clears
Up to 18 units, RF or hardwired (needs SA520B bridge unit), carbon monoxide and heat alarms and relays, maximum of 12 smoke alarms