Honeywell MN7234A2008 Non-Spring Return Damper Actuator – 300 lb-in Torque, 24V Modulating Control (0/2–10 Vdc)

Honeywell MN7234A2008 Damper Actuator – Non-Spring Return, 300 lb-in, 24V Proportional

The Honeywell MN7234A2008 is a reliable, direct-coupled non-spring return actuator ideal for modulating control of dampers in HVAC systems. Engineered for long life and precise operation, it delivers 300 in-lb of torque and supports 2–10 Vdc or 4–20 mA input signals (w/ resistor), making it suitable for air handling units, ventilation flaps, and large damper sections up to 50 sq ft.

Key Features

• Delivers 300 in-lb torque for air dampers up to 50 sq ft (assuming 3.5 in-lb/sq ft)

• Proportional modulating control via (0)2–10 Vdc or 4–20 mA (w/ 500-ohm resistor)

• Non-spring return operation with mechanical end limits

• Self-centering clamping shaft adapter for quick and secure installation

• Manual override via declutch mechanism

• Adjustable rotation range up to 95° ±3° with mechanical stops in 3° increments

• Rotation direction selectable by onboard switch

• Mounts in any orientation (except IP54 rating not valid if mounted upside-down)

• Compatible with round shafts (3/8"–1.06") and square shafts (3/8"–11/16")

• Optional auxiliary switch module available (SSW2-1M)

• UL and CE approved

Technical Specifications

Ideal Applications

• Air handling unit damper control

• Economizer dampers

• Return/exhaust ventilation flaps

• Large damper sections (up to 50 sq ft)

• Zone and rooftop unit control systems