while pneumatic options vary by spring range and supply pressure

Always verify you have 12V DC at the coil before replacing the component

This is an authentic OEM-spec part designed for precise fitment and reliable performance under maximum operating temperatures of 450°F

preventing the common pressure switch trips associated with off-spec aftermarket blowers

Belimo NRB24-SR Actuator 322055-301 while pneumatic options vary byThe Belimo NRB24 SR Actuator is a high performance proportional control solution designed for HVACR valve automation. Operating on a 24V AC DC power supply, this non spring return motor delivers a consistent 45 in lb torque (5 Nm) to manage ball valve assemblies and zone control systems with precision. It utilizes a 2 to 10 VDC control signal, providing accurate modulation for optimized flow control and system efficiency. Built for streamlined field