Edwards 757-4A-TW

The Edwards 757-4A-TW is a wall-mount combination audible-visual notification appliance featuring a temporal horn and xenon strobe in white, designed for fire alarm system evacuation signaling. The unit combines a high-output horn with a bright 75-candela strobe light to ensure rapid emergency notification in commercial, industrial, and residential environments.

Key Features

• 75-candela strobe light (wall mount, 60cd ceiling mount) with UL 1971 synchronization for Genesis compatibility
• Temporal horn with selectable HIGH (98 dBA) or LOW (94 dBA) volume settings
• UL 1638-rated protective visual signaling with 48 cd output at -35°C for cold-weather performance
• Field-configurable for temporal-three or continuous output modes
• White housing seamlessly integrates with modern building aesthetics
• Flushes to standard 2-gang electrical boxes (2¾ inch minimum depth)

Technical Specifications

• Operating Voltage: 16–33 VDC continuous or variable frequency regulated
• Strobe Current: 159 mA @ 24 VDC, 263 mA @ 16 VDC RMS
• Horn Current (HIGH setting): 40 mA @ 24 VDC
• Peak Horn Output: 97 dBA (temporal), 79 dBA reverberant average
• Dimensions: 4.5 × 6 × 4.5 inches
• Weight: 1 lb
• Housing Material: UL 94V-0 engineered plastic in white finish
• Strobe Flash Rate: 1 fps with external synchronization capability

Certifications

• UL 1971 (Automatic Fire Detectors for Fire Protective Signaling)
• UL 1638 (Audible-Visual Signaling Appliances)
• UL 464 (Audible Signaling Appliances)
• ULC S526 and ULC S525 (Canadian standards)
• FM (Factory Mutual), CSFM (California State Fire Marshal), MEA approved
• ADA compliant for accessibility