Bray Commercial DM24-140 Actuator

The Bray Commercial DM24-140 Actuator is a high-performance direct-coupled actuator designed for the precise modulation of dampers and valves in demanding HVAC environments. Built for reliability, this 24VAC/DC HVAC actuator provides a robust 140 lb-in torque output, ensuring consistent control over medium-to-large air handlers and terminal units. It utilizes a versatile proportional control signal, accepting 2-10VDC or 4-20mA inputs to match various building automation system requirements. The unit features brushless DC motor technology for stall protection and enhanced operational longevity without the need for limit switches. Its compact housing allows for installation in tight mechanical spaces, while the manual override button facilitates easy commissioning and troubleshooting for field technicians. This non-spring return actuator is engineered for energy-efficient damper control and precise HVAC valve automation, making it a staple for contractors maintaining large-scale commercial climate systems.

• Universal Compatibility: Supports 2-10VDC and 4-20mA control signals for seamless integration into existing BAS architectures.
• High Torque Output: Delivers 140 lb-in of force, suitable for managing larger damper surface areas and higher pressure drops.
• Synchronized Operation: Advanced circuitry allows for parallel wiring of multiple actuators on a single control point.
• Field Durability: NEMA 2 rated enclosure protects internal components against environmental debris and moisture common in mechanical rooms.
• Tool-Free Installation: Simple direct-shaft mounting with a self-centering shaft adapter reduces labor time on the job site.

Common Questions

How do I switch between voltage and current control signals?
The signal selection is managed via internal DIP switches; ensure the power is cycled after making adjustments to the 2-10VDC or 4-20mA settings.

Can this actuator be used in a failsafe application?
The DM24-140 is a non-spring return model. For applications requiring a specific fail-position upon loss of power, a spring-return series or backup power source is required.

What is the typical runtime for a full 90-degree stroke?
The standard drive time for this Bray actuator is approximately 95 seconds, providing steady modulation to prevent hunting in 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.