Fan Motor Capacitor 1 mfd, 1uF 450VAC, CBB61, 4-Terminal (Pack of 1)

A humming ceiling fan or a motor that won’t start often points to one small but essential part failing—the run capacitor. This 1 mfd (1uF) 450VAC CBB61 capacitor with a 4-terminal design is built to restore that lost power, giving your fan motor the steady electrical push it needs to spin smoothly again.

Designed as a universal replacement, this capacitor works with any brand as long as the capacitance and voltage match your original part—no need to track down an OEM-specific model. It features 0.19″ male quick-connect terminals for a secure, tool-free installation, and its +/-5% capacitance tolerance keeps performance consistent. Built to handle temperatures from -40°F to 158°F, it’s rated for both indoor and outdoor fan applications, and its compact 1.5″ x 1.1″ footprint fits into tight motor housings without hassle.

Who Is This For?

This capacitor is for homeowners, electricians, and DIYers looking to fix a slow-starting or humming ceiling fan, exhaust fan, or small electric motor without replacing the entire unit. It’s ideal if you’ve already confirmed the motor itself is in good working condition and just need to swap out a worn or failed capacitor. Before ordering, double-check that your original capacitor’s dimensions, terminal type, and electrical ratings match this one—getting the specs right the first time saves you a return trip and keeps your fan running longer.

Bottom Line

A failing capacitor is one of the most common—and most affordable—reasons a fan motor stops working properly. This 1 mfd 450VAC CBB61 capacitor offers a straightforward, budget-friendly fix that restores full motor performance in minutes, provided you match the specs to your original part. For anyone tired of a wobbly, underpowered, or silent ceiling fan, this small component can make a big difference.