Belimo LMCB24-SR-T Actuator

The Belimo LMCB24-SR-T is a high-performance non-fail-safe rotary actuator designed for the proportional modulation of dampers in commercial HVAC systems. Delivering 45 in-lb of torque, this 24V AC/DC unit utilizes a sensorless brushless DC motor managed by an Application Specific Integrated Circuit (ASIC) for precise control and digital rotation sensing (DRS) to prevent stall-related damage. It operates on a 2...10 VDC control signal, though it can be adapted for 4...20 mA applications using a 500 ? resistor. This model features a direct-coupled design with a universal clamp fitting 1/4" to 5/8" shafts, making it a versatile choice for VAV terminal units and small damper actuators. With its screw terminal electrical connections and maintenance-free operation, the LMCB24-SR-T ensures efficient, long-term performance in demanding environments without the need for limit switches.

• Precise Modulation: Provides accurate 2...10 VDC feedback for real-time position indication and secondary operation control.
• Enhanced Reliability: The brushless DC motor technology eliminates common wear points and includes electronic overload protection.
• Versatile Installation: Features a manual override push button and a selectable direction of motion switch for simplified field adjustment.
• Energy Efficient: Optimized for low power consumption, requiring only 1.5 W during operation and 0.4 W in holding mode.

What is the difference between LMCB24-SR and LMCB24-SR-T?
The "T" suffix signifies provide screw terminal connections instead of a pre-wired plenum cable, allowing for more flexible field wiring in various HVAC control systems.

Can this actuator be used for 4-20 mA control?
Yes, the proportional actuator can accept a 4-20 mA signal by adding a 500 ? resistor to the input circuit.

Is this a spring-return model?
No, this is a non-spring return actuator, meaning it will maintain its last position upon loss of power unless manually adjusted.

This item is not eligible for free shipping.

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.