Brk Electronics RM4 Relay Module for Smoke Detectors

Product Description

The BRK ELECTRONICS RM4 is a relay module designed to work with compatible smoke detectors, extending their signaling capability to auxiliary devices and systems. It allows a smoke detector to trigger external equipment such as HVAC shutoff controls, door holders, or notification appliances by providing a switched relay output. This module is installed by licensed electricians and fire alarm technicians working on residential or light commercial fire detection systems where auxiliary relay control is required.

The RM4 is suited for applications where a smoke detector must interface with building systems beyond its built-in alarm output. Typical installations include HVAC interlock scenarios where smoke detection triggers an air handler shutoff, or door release applications where fire doors must close upon alarm activation. It is commonly deployed in residential and light commercial settings requiring expanded smoke detector functionality.

Key Features

• Provides auxiliary relay output from a compatible smoke detector
• Enables HVAC shutoff, door holder release, or other interlock applications
• Designed for use with compatible BRK ELECTRONICS smoke detector models
• Single-unit packaging for individual installation or service replacement
• Sold as individual unit (each)

Compatibility

Designed as an OEM-style relay accessory for use with compatible BRK ELECTRONICS smoke detectors in fire relay applications.

Installation Notes

Installation should be performed by a licensed electrician or qualified fire alarm technician in accordance with NFPA 72 and applicable local codes. Disconnect power to the smoke detector circuit before connecting or servicing the relay module. Verify that the smoke detector model is compatible with the RM4 before installation. Follow the manufacturer product manual for wiring guidance and auxiliary load ratings.