Brk Electronics 9120B Ionization Smoke Detector 120V Ac

Product Description

The BRK ELECTRONICS 9120B is a 120-volt AC-powered ionization smoke detector with battery backup, designed for residential and light commercial life-safety applications. Ionization-type detectors respond quickly to fast-flaming fires, making them a standard choice for hallways, bedrooms, and common areas. The 9120B runs on 120V AC line power and includes a battery backup circuit so the unit remains operational during a power outage. Installation is typically performed by a licensed electrician in compliance with NFPA 72 and local fire codes.

This detector is suited for residential buildings, apartments, and light commercial spaces where hardwired smoke detection is required by code. The AC-powered design with battery backup meets common building and life-safety code requirements for new construction and renovation projects. Electricians and fire-alarm technicians are the primary installers for hardwired smoke detection devices of this type.

Key Features

• Ionization sensing technology for fast-flaming fire detection
• 120V AC line power with battery backup for continuous operation during outages
• Hardwired installation suitable for new construction and retrofit applications
• Single-unit packaging for per-location replacement or installation

Compatibility

Designed as an OEM-style replacement for hardwired 120V AC ionization smoke detectors in residential and light commercial fire-detection systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NFPA 72, the National Electrical Code, and applicable local codes. Shut off the branch circuit breaker supplying the detector circuit before making any wiring connections. Do not defeat or leave disconnected the battery backup — it is required for code-compliant operation. Mount the detector per the manufacturer instructions regarding placement height and distance from walls, cooking appliances, and HVAC supply registers.