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DC Vibrating Fire Alarm Bells
Edwards is a registered trademark of UTC Fire & Security

The Edwards hazardous location fire alarm bell is the finest heavy duty, hazardous location bell available today. It delivers a distinctive, clear ring that is free of mechanical clatter. Vibrating bells produce a long, continuous ringing sound. The striker continues to rapidly strike the gong as long as current is applied.

The bell has been designed for indoor applications requiring supervision of signaling circuit field wiring but may be used for unsupervised applications as well.

Mounts to any solid surface using two 3/8" (10mm) fasteners. Each unit is supplied with wire leads and a sealing fitting for connection to 3/4" (19mm) conduit.

The 439DEX fire alarm bells are ideally suited for fire alarm applications in refineries, gasoline storage and dispensing areas, flammable liquid areas, pray spray booths, aircraft refueling areas, graineries, flour mills, coal mines and other combustible dust areas.

6", 8" and 10" gong sizes
Low power drain for efficient
Completely assembled
Red epoxy finish
Diode Polarized Models available for use in electrically supervised circuits
Agency Approvals
UL 1203 Listed
UL Listed for Class I, Divisions 1 and 2, Groups B, C and D; Class II, Divisions 1 and 2, Groups E, F and G; and Class III
CSFM Listed
Adjustment free self-compensating plunger
Corrosion resistant finish
Click for Spec Sheet
439DEX-6AW EDWARDS Explosionproof Adaptabel DC Vibrating 6" Fire Alarm Bell, 20-24VDC
439DEX-8AW EDWARDS Explosionproof Adaptabel DC Vibrating 8" Fire Alarm Bell, 20-24VDC
439DEX-10AW EDWARDS Explosionproof Adaptabel DC Vibrating 10" Fire Alarm Bell, 20-24VDC
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This page was last updated August 19, 2014

 Phone: 800-231-1414 or 631-231-1414   Fax: 631-231-1498 E-Mail:

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