120V AC Smart Relay for Auxiliary Device Activation

The 120V AC Smart Relay RM4 by BRK is designed to activate auxiliary devices such as bells, sirens, strobe lights, exhaust fans, and door closers in response to signals from interconnected BRK or First Alert smoke, heat, and carbon monoxide alarms. This relay module serves as a critical component for electrical distributors and switchgear suppliers providing integrated alarm and auxiliary device solutions. It is intended for installation in a junction box and supports interconnection with up to 18 compatible alarms, enhancing safety systems with auxiliary signaling.

Specifications

• Operating Voltage: 120V AC, 60Hz
• Operating Current: 0.02 amps (standby/alarm)
• Dimensions: 3.5" L x 1.5" H
• Weight: 2.2 oz
• Temperature Range: 40¬∞F (4¬∞C) to 100¬∞F (38¬∞C)
• Humidity Range: 10% to 90% relative humidity (RH)
• Interconnections: Up to 18 units of First Alert or BRK smoke, CO, and heat alarms (maximum 12 smoke alarms)
• Contact Ratings (Maximum): 120V AC 15 AMP resistive, 1/3 HP motor; 30V DC 15 AMP
• Color: Black
• UPC: 029054000576
• Manufacturer Part #: RM4
• Listing: Meets UL217, UL2034, UL539, ULC S-531, CSA6.19, and ULCS-530 for accessories

Features

• Activates auxiliary devices automatically when any interconnected alarm sounds
• Compatible with BRK and First Alert "Smart Interconnect" smoke, heat, and carbon monoxide alarms
• Relay contacts deactivate automatically a few seconds after the alarm stops
• Supports wiring from either adjacent to an AC alarm or from a remote location (up to 1000 feet with #18 AWG or larger wire rated at least 300V)
• Fits in most standard electrical junction boxes
• Designed for use only with 120V AC power; alarms provide interconnect signal but do not power auxiliary devices
• Includes normally open, normally closed, and hot contact relay outputs for flexible auxiliary device control
• Installation must comply with local electrical codes and be performed by a licensed electrician

Downloads & Links

• Spec Sheet
• User Manuals - English Version (Original as in Box)