the heavy-duty wire mesh on the GRD10-1R allows for unobstructed natural convection

Built on a NEMA 48 frame

the coil has likely failed

Built with a standard NEMA 48 frame and featuring weather-resistant lead exits

this model is frequently used in systems utilizing millivolt safety valves

Belimo NFBUP Motor Actuator 30067439-890 the heavy-duty wire mesh onThe Belimo NFBUP is a robust spring return damper actuator designed for reliable on off control in demanding HVAC systems. This mechanical fail safe unit provides 90 in lb of torque, ensuring consistent operation of control dampers and valves during power interruptions. Engineered with a universal power supply, the NFBUP accepts 24 to 240 VAC or 24 to 125 VDC, offering maximum job site flexibility for contractors. The brushless DC motor technology