M9208-BAA-3 Johnson Controls Actuator

Overview

The Johnson Controls M9208-BAA-3 is a robust, two-position electric spring return direct coupled actuator designed for reliable control of dampers and valves in HVAC systems. Operating on standard commercial 120 VAC power, this actuator automatically returns to its fail-safe default position during power loss, providing critical equipment protection and safety. Its direct-coupled configuration eliminates external linkages, simplifying installation and reducing maintenance requirements.

Features

• Rated torque output of 70 lb-in (8 N-m) for handling demanding damper and valve loads
• Mechanical spring return fail-safe system operation upon power loss
• Direct-coupled design that requires no external linkage hardware
• Double-insulated construction removes the need for regulatory electrical ground connections
• Reversible mounting for flexible clockwise or counterclockwise operation
• Electronic stall detection provides overload protection across all angles of stroke
• Integrated 48-inch appliance cable with an integral 3/8-inch flexible metal conduit (FMC) connector

Specifications

• Brand: Johnson Controls
• Model: M9208-BAA-3
• Supply Voltage: 120 VAC, 50/60 Hz
• Control Signal: Two-Position (On/Off)
• Torque: 70 lb-in (8 N-m)
• Power-On Run Time: 55 to 71 seconds
• Spring Return Time: 13 to 26 seconds
• Rotation Angle: 95° max stroke with graduated mechanical position indicator
• Enclosure Rating: NEMA 2 (IP54)
• Operating Temperature: -40° to 140°F (-40° to 60°C)

Applications

• Commercial air handling unit (AHU) damper control
• Outside air, exhaust, and ventilation damper actuation
• Building automation system integration
• Economizer damper control
• Zone isolation and standard HVAC air management systems