Schneider Electric (Barber Colman) MA41-7150-502 Actuator

The Schneider Electric (Barber Colman) MA41-7150-502 Damper Actuator is a 120V 2-position spring return actuator engineered for precise control in heavy-duty HVACR applications. Delivering 133 lb-in torque, this DuraDrive direct coupled actuator provides the mechanical force required for large dampers and globe valves. As a rugged on-off spring return actuator, it ensures a fail-safe position upon power loss, a critical requirement for safety and system protection. This model features dual internal auxiliary switches (2 SPDT) for end-stop signaling and interfacing with secondary equipment. Designed for direct mount installation, the unit eliminates the need for complex linkages on standard shafts, featuring a universal clamp compatible with round or square profiles. Professionals use this as a Schneider Electric MA41-7150-502 replacement for legacy Barber Colman actuators including MA-6501-502, MA-7501-502, MA40-7150-502, and MA40-AF120-502.

Key Benefits

• High Torque Output: Provides 133 lb-in (15 Nm) of torque, suitable for high-static pressure systems and large-scale damper actuation.
• Integrated Feedback: Equipped with 2 SPDT auxiliary switches (one fixed at 5° and one adjustable from 25° to 85°) for reliable position verification.
• Robust Fail-Safe: The mechanical spring return ensures the damper or valve returns to its original state during power interruptions.
• Universal Compatibility: Fits 1/2" to 3/4" round or 1/2" square shafts out of the box, supporting broad HVAC retrofit applications.
• Durable Construction: NEMA 2 rated die-cast housing designed for commercial HVAC maintenance environments with a temperature range of -22°F to 140°F.

Common Questions

What is the primary power requirement for this actuator?
The MA41-7150-502 operates on a standard 120 VAC power supply, drawing approximately 10 VA during operation.

Can I adjust the rotation limits of this unit?
Yes, while the nominal angle of rotation is 95°, users can utilize optional mechanical stops or the AM-689 accessory to limit stroke between 30° and 95°.

Is this a direct replacement for the MA-6501-502?
Yes, this SmartX actuator is the official cross-reference and functional replacement for legacy models including MA-6501-502 and MA40-AF120-502.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.