Edwards AdaptaHorn Family | 878DEX / 879DEX / 888D & 889D Series — Grille Type Hazardous Location Horn Diode Polarized:

The Edwards 878DEX, 879DEX, 888D and 889D Series are diode polarized, heavy-duty, high decibel, vibrating horn signals. They are intended for use in hazardous locations requiring electrical supervision of signaling circuit field wiring. For non-fire alarm applications, horns have a NEMA type 4X rating and may be used outdoors (recommended above temperatures of +25F). Two mounting brackets are provided on either side of the unit for wall mounting. The housing is tapped on one side for 3/4" (19mm) conduit to allow for field wiring installation. For use in dusty, hazardous atmospheres where a distinctive, urgent signal is required. Typical applications include use in mines, petroleum plants, gas plants, grain elevators, flour mills, paper mills, textile plants and tankers.

Series Feature Highlights:

UL Listed for Class I, Division 1 and 2, Groups B, C, and D; Class II, Division 1 and 2, Groups E, F, and G; and Class III locations, UL Listed for outdoor locations NEMA Type 4X Rated (878DEX and 879DEX only)

Wide operating voltage range -20% to +10% of nominal voltage

Power connection wires embedded in sealing compound

Diode polarized

Corrosion resistant heat flowed epoxy finish

Low current drain

Available in grey or red