Barber Colman (Schneider Electric) MA-405-500 Damper Actuator
The Barber Colman MA-405-500, now under Schneider Electric, is an electric damper actuator designed for two-position (on/off) control in HVAC systems. Equipped with a spring return mechanism, it ensures dampers revert to their default position upon power loss, enhancing system reliability.
Technical Specifications
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Model: MA-405-500
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Type: Electric Damper Actuator
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Control Signal: Two-position (On/Off)
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Power Input Voltage: 120 VAC
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Power Consumption: 48 watts
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Torque Output: 16 lb-in (1.8 N-m)
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Shaft Rotation: 180° clockwise upon energization; counterclockwise spring return when de-energized
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Auxiliary Switch: Single-Pole, Double-Throw (SPDT) switch that actuates at the powered end of the stroke
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Ambient Temperature Limits: -40°F to 136°F (-40°C to 58°C)
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Humidity Range: 5% to 95% RH, non-condensing
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Housing: Rugged die-cast aluminum with two 1/2-inch conduit openings
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Mounting: Versatile positioning; upright orientation preferred
Key Features
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Reliable Two-Position Control: Provides consistent on/off damper operation
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Spring Return Mechanism: Ensures dampers return to their default position during power interruptions
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Integrated Auxiliary Switch: Facilitates additional control functions or feedback mechanisms
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Durable Construction: Die-cast aluminum housing enhances longevity and performance
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Flexible Mounting Options: Suitable for various installation positions to accommodate system requirements
Compatible Components & Accessories
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Crank Arms: AM-113 (for 1/2-inch diameter damper shafts)
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Linkage Connectors: AM-122 (straight type), AM-132 (ball joint connector)
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Damper Rods: AM-125 (5/16-inch diameter x 20 inches), AM-125-048 (5/16-inch diameter x 48 inches)
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Mounting Brackets: AM-301 (90-degree mounting bracket)
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Gasket Kit: AM-363 for NEMA 4 rated applications
Industry Applications
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HVAC Systems: Ideal for controlling airflow in heating, ventilation, and air conditioning systems
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Building Automation: Integrates with automated control systems for efficient building management
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Industrial Ventilation: Suitable for managing airflow in industrial environments requiring robust actuator performance
Installation & Maintenance Notes
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Wiring: Ensure compliance with national and local electrical codes; use appropriate wire gauges based on run length and voltage
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Mounting: While the actuator can be mounted in various positions, the upright orientation is preferred for optimal performance
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Adjustment: The auxiliary switch operating point can be modified by inserting a screwdriver through the top plate opening and turning the gear-like plastic disc; each click represents approximately a 3-degree change in operating point
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Inspection: Regularly check for signs of wear, oil leaks, or electrical issues; maintain oil levels using TAC immersion oil as specified
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Safety Precautions: Disconnect power before installation or maintenance; never attempt to turn the actuator shaft manually with a wrench or crank to avoid gear damage
The Barber Colman (Schneider Electric) MA-405-500 electric damper actuator offers dependable two-position control for various HVAC applications, ensuring precise airflow regulation and contributing to overall system efficiency.
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance