Schneider Electric MS41-6343 24V Proportional Non-Spring Return Actuator 300 in-lb

The Schneider Electric (Barber Colman) MS41-6343 is a heavy-duty proportional electronic actuator designed for precise control of large dampers and valves in commercial HVAC systems. This non-spring return actuator delivers 300 inch-pounds of torque, making it ideal for industrial applications requiring powerful modulating control.

Key Features:

• 24VAC/VDC power supply for versatile installation compatibility
• 300 in-lb torque output for large damper and valve applications
• Proportional control with 2-10 VDC or 4-20 mA input signals
• Non-spring return design maintains position on power loss
• Rugged metal housing with weather-resistant construction
• 90-degree rotation with adjustable stroke settings
• Direct-coupled mounting for reliable mechanical connection
• Manual override for emergency positioning

This actuator is part of Schneider Electric's proven MS41 series, formerly manufactured under the Barber Colman brand. It provides reliable, long-lasting performance in demanding commercial and industrial environments where precise modulating control is essential.