Kidde Edwards KI-RB4 Relay Base 4 Inches Ki Series

Product Description

The KIDDE EDWARDS KI-RB4 is a relay base designed for use with Ki Series detectors in fire detection systems. The relay base provides a built-in switching mechanism that allows the detector to trigger auxiliary devices or circuits when an alarm condition is detected. At 4 inches in diameter, it mounts directly in place of a standard detector base and integrates into the wiring of the detection loop. Licensed fire alarm technicians and low-voltage electricians are the typical installers. This accessory is sold as a single unit and is catalogued under detection accessories.

The KI-RB4 relay base is suited for commercial and residential fire detection applications where the installer needs local relay output capability at the detector mounting point. Typical use cases include triggering door holders, auxiliary notification appliances, or equipment shutdown contacts directly from the detector position. It is designed to work within Ki Series addressable or conventional fire detection installations where a relay function is needed without adding a separate module at the panel.

Key Features

• Built-in relay switching at the detector base level eliminates the need for a separate relay module
• 4-inch form factor fits standard detector mounting locations
• Compatible with Ki Series detectors for seamless system integration
• Single-unit packaging supports per-point installation planning
• Classified as a detection accessory for use in life safety systems

Compatibility

Designed as an OEM-style relay base for use with Ki Series fire detection devices in commercial and residential fire alarm installations.

Installation Notes

Installation should be performed by a licensed fire alarm technician or qualified low-voltage electrician in accordance with NFPA 72 and applicable local codes. De-energize the detection loop and confirm the system is in a safe state before removing or installing any detector base. Verify relay contact ratings against the load being switched before completing wiring. Follow the manufacturer data sheet for terminal assignments and wiring configurations.