Siemens Building Technology GDE146.1P Actuator

The Siemens GDE146.1P is a high-performance non-spring return rotary damper actuator designed for the precise control of HVAC dampers and terminal units. Delivering 44 lb-in (5 Nm) torque, this 24V AC/DC actuator supports two-position and floating control signals, making it a versatile choice for variable air volume (VAV) systems. It features an integrated auxiliary switch for position feedback or interlocking auxiliary equipment, streamlining field wiring and system integration. Engineered for durability, the Siemens OpenAir actuator utilizes a robust gear train and self-centering shaft adapter, accommodating round shafts from 3/8-inch to 5/8-inch or square shafts from 1/4-inch to 1/2-inch. As a professional-grade solution, the GDE146.1P is the direct replacement for GDE136.1P and MF-1233-002, ensuring seamless field retrofits with minimal downtime. The unit's low power consumption and pre-cabled design allow for efficient installation in tight mechanical enclosures while maintaining reliable torque delivery across its full 90-degree rotation.

• High Torque Output: Provides 44 lb-in of torque, suitable for dampers up to approximately 8 square feet.
• Universal Control: Field-selectable for 2-position or 3-point floating control logic to match legacy and modern controllers.
• Built-in Feedback: Features a fixed auxiliary switch adjusted at a 5-degree angle for reliable state monitoring.
• Direct Retrofit Path: Specifically engineered to replace discontinued GDE136.1P and Schneider/Barber-Colman MF-1233-002 models.
• Mechanical Simplicity: Includes a manual override button and position indicator for faster commissioning and troubleshooting.

Can I use the GDE146.1P to replace a Schneider MF-1233-002?
Yes, this unit is the designated technical replacement for the MF-1233-002, matching the voltage requirements and 3-point floating control functionality used in those legacy installations.

What is the typical runtime for this Siemens actuator?
Under standard 60Hz operation, the GDE146.1P provides a consistent 125-second runtime for a 90-degree stroke, ensuring stable control loop response in VAV applications.

Does this model include a return spring for power-loss scenarios?
No, this is a non-spring return (NSR) actuator. For applications requiring a fail-safe position upon loss of power, a spring-return model from the GMA or GCA series should be utilized.

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.