855H-BD30AD

Overview of Allen Bradley 855H-BD30AD

The Allen Bradley 855H-BD30AD is a high-performance industrial electronic horn engineered for clear and reliable audible signaling in demanding environments. It operates on a 10 to 30 VDC power range and delivers a sound output of 100 dB, making it suitable for noisy industrial areas where attention-grabbing alerts are essential. The unit offers a 2-stage alarm with selectable tones, providing operators with flexible configuration for different notification or warning events. With its standard base mounting, it accommodates back feed or conduit feed installation, ensuring easy integration into control panels and process equipment. The gray housing is durable and compliant with industrial standards, supporting long-term operation in factories, warehouses, and utility sites.

Key Features of Allen Bradley 855H-BD30AD

• 100 dB sound level for high audibility
• Selectable 10-tone, 2-stage alarm capability
• Wide 10 to 30 VDC operating voltage
• Low current draw (0.025 A DC)
• Standard base allows back feed or conduit feed mounting
• Durable construction suited for industrial environments

Technical Specs of 855H-BD30AD

• Brand: Allen Bradley
• Model: 855H-BD30AD
• Type: Electronic Industrial Horn
• Sound Output: 100 dB
• Tones: 10 selectable
• Alarm Stages: 2
• Voltage Range: 10–30 VDC
• Current: 0.025 Amp DC
• Mounting: Standard Base (back feed or conduit feed)
• Color: Gray

Applications / Use Case

The Allen Bradley 855H-BD30AD is designed for use in a wide range of industrial signaling applications. It is ideal for alerting operators, maintenance staff, or workers to critical operational changes, equipment malfunctions, or safety-related events. Common installations include manufacturing plants, assembly lines, control rooms, warehouse automation, and material handling systems. The selectable tone feature enables differentiation between warning types, such as evacuation signals vs. process alerts. With its high output and reliable performance, the 855H-BD30AD improves safety and communication on the factory floor, alerting personnel effectively—even in high ambient noise environments. Facilities using automated process control or requiring clear audible notifications for safety compliance benefit significantly from this model.

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