Kidde 21031556 Smoke Detector Ac Dc 10 Year

Product Description

The KIDDE 21031556 is a combination AC/DC smoke detector designed for residential life-safety applications. It operates on both AC power with a battery backup, providing continuous protection even during power outages. The 10-year sealed battery design eliminates the need for annual battery replacements over the life of the unit, reducing maintenance callbacks for service professionals. The round form factor fits standard single-gang or retrofit ceiling and wall mounting locations. This unit is intended for installation by licensed electricians or qualified contractors working to applicable residential fire and life-safety codes.

This smoke detector is suited for residential new construction and retrofit installations where a reliable, long-life AC/DC smoke alarm is specified. Its 10-year design life aligns with the replacement intervals required by many local fire codes and the NFPA 72 National Fire Alarm and Signaling Code, making it a practical choice for property managers, home builders, and electrical contractors completing single-family or multi-unit residential projects.

Key Features

• AC/DC dual-power operation with battery backup for continuous protection during outages
• 10-year sealed battery eliminates routine battery replacement over unit lifespan
• Round profile fits standard ceiling and wall mounting locations
• Sold individually, one unit per package
• Designed for residential smoke detection applications

Compatibility

Designed as an OEM-style residential smoke detector suitable for standard AC/DC hardwired smoke alarm installations in residential settings.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NFPA 72 and applicable local fire codes. Shut off the circuit breaker supplying the smoke detector branch circuit before making any wiring connections. Follow the manufacturer wiring diagram included with the unit for proper line, neutral, and interconnect lead terminations. Test the unit after installation per NFPA 72 acceptance testing procedures before returning the system to service.