Bray Commercial DM24-280 Actuator

The Bray DM24-280 actuator is a high-torque direct coupled actuator designed for precise control in heavy-duty HVAC applications. Operating on 24VAC/DC power, this unit accepts 2-10VDC or 4-20mA modulating signals, providing versatile integration with standard building automation systems. With a 280 lb-in torque rating, it is engineered to drive large dampers or valves without hesitation, ensuring reliable positioning in high-static pressure environments. The non-spring return mechanism allows for manual override and fail-in-place functionality, which is critical for specific air handling unit configurations. Built for longevity in commercial mechanical rooms, the Bray Commercial DM24-280 features a rugged housing and a universal shaft clamp that simplifies field installation. Contractors can rely on its consistent modulating control performance to maintain system balance and optimize airflow modulation across complex ductwork networks.

Key Benefits

• High Torque Output: Delivers 280 lb-in of force to handle large-scale dampers and high-pressure drops.
• Universal Input: Supports 2-10VDC and 4-20mA control signals for seamless BMS compatibility.
• Flexible Power: Designed for 24VAC/DC installations standard in commercial mechanical systems.
• Manual Override: Includes a manual declutch button for easier commissioning and emergency positioning.
• Durable Construction: Engineered to withstand the thermal and vibrational stresses of continuous operation.

Common Questions

How do I switch between 2-10VDC and 4-20mA input on the DM24-280?
The Bray DM24-280 typically utilizes internal DIP switches or specific wiring configurations to select the input signal type. Always verify the terminal block assignments to ensure the impedance matches the controller output.

What damper size is the Bray DM24-280 rated for?
While damper torque requirements vary by brand and seals, this 280 lb-in actuator is generally suitable for dampers up to 70 square feet, depending on the air velocity and pressure levels.

Can this actuator be used in failsafe applications?
The DM24-280 is a non-spring return actuator. It will maintain its last position upon loss of power unless an external backup or capacitor-driven fail-safe module is integrated into the control loop.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.