The Barber Colman MA-5333 is a two-position, spring-return damper actuator designed for HVAC systems requiring reliable open/close control. Operating on 24 VAC, it delivers a torque output of 20 lb-in, making it suitable for small to medium-sized dampers.
Technical Specifications
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Model: MA-5333
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Type: Two-position damper actuator
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Voltage: 24 VAC
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Control: SPST (Single Pole Single Throw)
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Torque Output: 20 lb-in (2.3 Nm)
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Timing: 60 seconds to extend (no load), 15 seconds spring return
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Spring Return: Yes
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Stroke: Approximately 2 inches (51 mm)
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Ambient Temperature Limits: 0°F to 140°F (-18°C to 60°C)
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Humidity Range: 5% to 95% RH, non-condensing
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Housing: Die-cast lower housing with 1/2″ conduit opening; painted steel upper housing
Key Features
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Provides reliable two-position control for dampers
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Spring return ensures fail-safe operation upon power loss
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Durable construction suitable for industrial environments
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Compact design allows for versatile mounting options
Compatible Applications
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HVAC systems requiring open/close damper control
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Ventilation and air handling units
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Building automation systems
Installation & Maintenance Notes
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Mount actuator securely to prevent movement during operation
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Ensure proper alignment with damper linkage
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Verify electrical connections comply with local codes and standards
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Regularly inspect actuator for signs of wear or damage
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance