Cooper Wheelock EL3RMTST-FR Eluxa Nema 3R Multitone Strobe, Clear Lens, Fire, 3R Plate, Red

The Cooper Wheelock EL3RMTST-FR is a NEMA 3R outdoor multitone horn strobe from Eaton's Eluxa Series, designed for audible and visual fire alarm notification. Featuring eight selectable alarm tones, two sound output levels, and six field-selectable strobe settings of 15, 30, 75, 110, 150, and 185 candela, it supports wall and ceiling installation. The red appliance features a clear LED strobe lens, FIRE lettering, and a weather-resistant mounting plate. Operating on 16-33VDC or full-wave rectified power, it supports independent horn and strobe control, synchronized visual signaling, and outdoor operation from -40 F to 150 F.

Cooper Wheelock EL3RMTST-FR Eluxa NEMA 3R Outdoor Multitone Horn Strobe

The Cooper Wheelock EL3RMTST-FR Eluxa Multitone Horn Strobe provides combined audible and visual fire alarm notification for indoor and outdoor commercial installations. Its eight field-selectable alarm tones include horn, bell, march time, Code 3 horn, Code 3 tone, slow whoop, siren, and high/low signaling. A separate volume setting provides standard or high sound output, with reverberant sound pressure levels reaching 88 dBA at 10 feet for supported tone selections. The integrated clear-lens LED strobe produces visible emergency signaling, while the red housing and FIRE identification distinguish the appliance as fire alarm equipment. Typical installations include exterior building entrances, covered walkways, parking structures, industrial facilities, and commercial properties requiring weather-resistant notification devices.

The EL3RMTST-FR operates on a regulated 24VDC nominal notification appliance circuit with an allowable 16-33VDC or full-wave rectified voltage range. Its LED strobe provides six selectable candela settings of 15, 30, 75, 110, 150, and 185 cd, flashing once per second. Maximum strobe current ranges from 26mA at 15 cd to 206mA at 185 cd on regulated DC power, or 34mA to 308mA with full-wave rectified input. Multitone current varies by selected sound pattern and volume, reaching 135mA at the high Code 3 tone setting on 16-33VDC. The appliance supports single-circuit activation or separate horn and strobe circuits, allowing compatible fire alarm systems to control audible and visual notification independently. Circuit loading must account for the selected horn and strobe current ratings.

The Cooper Wheelock EL3RMTST-FR features a red, UV-stabilized engineered-plastic housing and a rugged clear Lexan LED lens. The NEMA 3R assembly measures approximately 7.8 inches long, 5.75 inches wide, and 1.6 inches deep and weighs approximately 1.7 pounds. Its included EL3RMP weather-resistant mounting plate supports wall or ceiling installation and incorporates pre-wire and pre-test functionality for checking electrical connections before attaching the notification appliance. Wiring terminals accommodate 12-18 AWG conductors, while DIP switches provide field adjustment of tone and volume. The enclosure carries NEMA 3R and IP54 environmental protection ratings and operates from -40 F to 150 F (-40 C to 66 C) at up to 95% relative humidity, making it suitable for outdoor installations exposed to rain and changing temperatures.

The EL3RMTST-FR is UL 1971 listed for fire alarm visual notification, UL 1638 listed for visual signaling, and UL 464 listed for audible signaling, with corresponding CAN/ULC-S526 and CAN/ULC-S525 certifications. Its integrated strobe supports synchronization through compatible Wheelock DSM modules, Wheelock power supplies, and fire alarm control panels using the Wheelock synchronization protocol. The Eluxa outdoor series also supports synchronized operation with compatible Wheelock RSS-based and Exceder LED3 notification appliances, subject to circuit requirements. The EL3RMTST-FR combines a multitone horn, clear LED strobe, FIRE lettering, and NEMA 3R mounting plate, distinguishing it from the EL3RMT-NR horn-only model and the EL4XMTST-FR NEMA 4X configuration. Installation, notification appliance spacing, circuit supervision, and current calculations must follow Eaton's instructions and applicable NFPA 72 requirements.