Belimo PRBUP-3-T Actuator

The Belimo PRBUP-3-T is a high-torque, non-spring return (NSR) universal HVAC actuator designed for 2-way and 3-way large butterfly valves. Operating on a universal supply voltage of 24 to 240 VAC/DC, this industrial valve actuator provides 710 in-lb of torque, making it a rugged solution for high-static pressure applications. It serves as the official direct replacement for SY3-110 series actuators. The unit supports On/Off and Floating point control, ensuring precise positioning in commercial mechanical rooms. Built with a NEMA 4X / IP66 rated housing, the PRBUP-3-T is engineered for harsh environments where moisture and dust ingress are concerns. When replacing legacy SY actuators, verify your existing valve linkage requirements to ensure seamless mechanical integration. This multi-voltage actuator simplifies inventory by covering a wide range of power requirements in a single footprint, reducing downtime during field retrofits and system upgrades.

Technical Key Benefits

• Universal Compatibility: Integrated 24-240V AC/DC power supply eliminates the need for external transformers.
• High Torque Output: Delivers a consistent 710 in-lb (80 Nm) for reliable operation of larger butterfly valves.
• Rugged Construction: NEMA 4X enclosure provides superior protection against corrosion and extreme weather.
• Legacy Integration: Designed specifically for SY3-110 replacement applications with appropriate mounting kits.
• Manual Override: Features an external hand crank for manual positioning during commissioning or power loss.

Common Questions

What is the best replacement for a Belimo SY3-110 actuator?
The Belimo PRBUP-3-T is the designated successor to the SY3-110, offering modern electronics and a more versatile power input while maintaining the necessary torque for butterfly valve applications.

Can the PRBUP-3-T be used in outdoor HVAC applications?
Yes, its NEMA 4X / IP66 rating makes it suitable for outdoor installation, providing protection against windblown dust, rain, and hose-directed water.

Does this actuator require a specific control signal?
The PRBUP-3-T is configured for On/Off or Floating point control. For proportional (2-10VDC) requirements, a different PR-series model would be necessary.

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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.