Description
The RAYMAX 4µF CBB61 Wired Box Type Motor Run Capacitor is a premium-grade electrical component designed to deliver the precise phase shift and starting torque required by small, single-phase alternating current (AC) fractional horsepower motors. Housed in a compact, pitch-sealed, flame-retardant rectangular plastic casing, this unit features a molded mounting ear for secure, hassle-free screw-down installation in tight motor housings. Engineered with advanced self-healing metallized polypropylene film, it operates reliably across a wide voltage spectrum of 400V to 450V AC (50/60Hz). This self-healing technology automatically isolates minor internal dielectric punctures caused by voltage surges, preventing sudden component failure and ensuring your machinery operates smoothly, quietly, and at peak energy efficiency. Key Features Precise Capacitance: 4µF (Microfarads) for stable motor speed regulation and continuous running torque. Dual Voltage Stability: Universally replaces capacitors rated anywhere between 400VAC and 450VAC configurations. Compact CBB61 Geometry: Space-saving rectangular box profile with a built-in mounting hole for rigid placement. Pre-Wired Twin Leads: Flexible, heavy-duty insulated wire leads allow for easy stripping, splicing, or wire-nut connections. Rugged Environment Protection: Fully sealed to withstand high operational temperatures, moisture, and high motor vibrations. Compatible Machines & Applications A 4µF box capacitor is a highly common rating found in medium-to-large residential air-moving appliances and light industrial gear. It is universally compatible with the following machines: 1. Large Fans & Air Circulators Industrial & Heavy-Duty Ceiling Fans: The standard replacement size for larger commercial ceiling fans or multi-speed residential fans that are spinning too slowly, humming, or refusing to start. Commercial Pedestal Fans: Powers the heavy-duty oscillating floor fans used in workshops, gyms, and warehouses. Exhaust & Ventilation Systems: Found in restaurant kitchen range hoods, commercial inline duct exhaust fans, and bathroom ventilation units. 2. HVAC & Climate Control AC Indoor Blower Motors: Frequently used in the indoor evaporator/air-handler unit of mini-split systems and central air conditioners to drive the multi-speed blower fan. Industrial Dehumidifiers & Air Purifiers: Powers the internal high-volume circulation blower fans that pull air through dense filtration media. 3. Small Motorized Machinery Evaporative “Swamp” Coolers: Drives the primary heavy-duty cooling fan motor in medium-sized portable air coolers. Small Centrifugal Pumps: Used in certain low-power water feature pumps, decorative fountains, or small automated display turntables. ⚠️ Installation Safety Tip: Even a 4µF capacitor can pack a painful residual electrical sting long after the power is cut. Always turn off the circuit breaker, unplug the appliance, and safely discharge the old capacitor by bridging its two wire connections with an insulated tool before handling the bare wires.






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