Belimo NMB24-SR 24V Direct Coupled Non-Spring Return Damper Actuator

The Belimo NMB24-SR is a 24-volt direct coupled damper actuator designed for precise HVAC control applications. This non-spring return actuator provides reliable modulating control of dampers in commercial and industrial building automation systems.

Key Features:

• 24VAC/DC power supply for versatile installation options
• 2-10 VDC control signal input for accurate proportional control
• Direct coupled mounting eliminates the need for linkages and brackets
• Non-spring return design holds damper position on power loss
• 35 in-lb (4 Nm) torque output for effective damper operation
• 90-degree rotation range for standard damper applications
• Durable construction for long service life in demanding environments
• Replaces legacy Belimo NM2 series actuators

The NMB24-SR features Belimo's proven actuator technology with a compact design that simplifies installation and maintenance. The direct coupled connection mounts securely to damper shafts ranging from 1/4" to 5/8" diameter using the included universal clamp. Ideal for VAV systems, exhaust control, economizer applications, and general HVAC damper control where modulating control is required.