Description
Honeywell ML6161A2025 Non-Spring Return Direct Coupled Damper Actuator
The Honeywell ML6161A2025 is a non-spring return, direct coupled damper actuator engineered for reliable on/off and floating control in commercial HVAC damper applications. Designed for direct shaft mounting, this actuator eliminates the need for linkages or external brackets, simplifying installation and reducing maintenance requirements. Its robust construction and wide operating range make it a dependable choice for air handling units, VAV systems, and building automation applications.
Key Features
- Non-spring return design — damper holds last position on power loss
- Direct coupled mounting for easy, linkage-free installation
- On/Off and floating control signal operation
- SPDT (Single Pole Double Throw) auxiliary switch included
- 180-second nominal driving time for smooth, controlled damper movement
- 35 lb-in torque output for positive damper control
- Compatible with 3/8″ to 1/2″ square or round shafts
- Wide ambient temperature range: 20°F to 125°F (-7°C to 52°C)
- Operating humidity range: 5% to 95% RH (non-condensing)
Electrical Specifications
- Supply voltage: 24VAC
- Control signal: On/Off, SPDT, Floating
- Nominal driving time: 180 seconds
Mechanical Specifications
- Torque: 35 lb-in
- Shaft compatibility: 3/8″ to 1/2″ square or round
- Return type: Non-spring return (power-off hold)
Environmental Ratings
- Ambient temperature: 20°F to 125°F
- Relative humidity: 5% to 95% RH (non-condensing)
Ideal Applications
- Commercial air handling units (AHUs)
- Variable air volume (VAV) systems
- Building automation and HVAC zoning systems
- Outdoor air and exhaust damper control
- Mixed-air and economizer damper applications
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