Barber Colman MK-7121 Damper Actuator (Schneider Electric)
The Barber Colman MK-7121, now offered through Schneider Electric, is a robust electric damper actuator designed for controlling airflow in HVAC systems. Engineered for reliable two-position or floating control, the MK-7121 delivers consistent torque and performance in ventilation and zoning applications across commercial and industrial environments. Its heavy-duty construction and dependable operation make it ideal for both retrofit and new installations.
The Barber Colman MK-7121 is a dependable damper actuator built for high-performance HVAC applications, providing consistent airflow control and long-term reliability in demanding environments.
Technical Specifications
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Model: MK-7121
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Type: Electric Damper Actuator
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Manufacturer: Barber Colman (Schneider Electric)
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Control Type: Two-position or floating (depending on wiring and application)
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Power Supply: Typically 120V AC (verify specific voltage)
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Torque Output: (Refer to datasheet – generally for medium-duty damper loads)
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Rotation: Standard 90° (field adjustable if applicable)
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Timing: Fixed travel time (typically 30–60 seconds)
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Mounting: Direct shaft mounting or bracket installation
Key Features
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Durable actuator for damper control in commercial HVAC systems
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Compatible with Barber Colman and Schneider Electric control systems
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Provides stable, repeatable motion for airflow regulation
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Designed for floating or two-position control logic
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Heavy-duty housing for long operational life in harsh environments
Compatible Components & Accessories
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Damper shafts and crank arms
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Mounting brackets and linkage kits
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Auxiliary switch kits for position feedback (if applicable)
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Schneider Electric or Barber Colman control panels and thermostats
Industry Applications
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HVAC zoning and ventilation systems in commercial buildings
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Industrial supply and return air damper control
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Energy management systems and economizers
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OEM and retrofit installations involving Barber Colman components
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Process control environments requiring reliable air regulation
Installation & Maintenance Notes
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Confirm power supply and control signal requirements prior to installation
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Mount actuator securely to damper shaft or use approved mounting brackets
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Verify full travel and adjust stops or rotation angle if needed
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Periodically inspect actuator for mechanical wear or electrical issues
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Use OEM replacement parts to maintain performance and compatibility
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance