Box Cap Wire Type 3UF

Description

The 3µF CBB61 Wired Box-Type Motor Run Capacitor is an essential electrical component designed to provide the necessary phase shift and starting torque for small, single-phase alternating current (AC) fractional horsepower motors. Housed in a compact, flame-retardant rectangular plastic casing with a molded mounting ear, this capacitor is engineered for quick screw-down installation in tight motor housings. Utilizing advanced self-healing metallized polypropylene film technology, it operates reliably across a wide voltage spectrum of 400V to 450V AC (50/60Hz). This internal film structure safely isolates minor electrical punctures or spikes, protecting your equipment from sudden failure and ensuring your household and commercial appliances run smoothly, quietly, and efficiently. Key Features Precise Capacitance: 30µF is too high for small fans, but this exact 3µF rating delivers the perfect, steady current needed for medium-sized air-moving motors. Dual Voltage Stability: Universally replaces capacitors rated for 400VAC or 450VAC systems. Convenient Box Geometry: Features a CBB61 rectangular profile with a built-in mounting hole for secure positioning. Flexible Wire Leads: Comes with two insulated, pre-stripped flexible wire leads for easy splicing into your appliance’s existing wiring harness. High Environmental Resistance: Flame-retardant case withstands high operational heat, moisture, and motor vibrations. Compatible Machines & Applications A 3µF box capacitor is one of the most widely used sizes for residential and light commercial air-handling equipment. It is universally compatible with the following machines: 1. Household & Commercial Fans Ceiling Fans: The textbook replacement size for larger or multi-speed ceiling fans that have become sluggish, hum loudly, or fail to spin up on their own. Wall-Mounted & Exhaust Fans: Found in kitchen range hoods, commercial ventilation units, and restaurant extractor fans. Industrial Pedestal Fans: Used in heavy-duty workshop floor fans and oscillating warehouse air-circulators. 2. HVAC & Air Conditioning Units Indoor Blower Motors: Frequently used in the indoor evaporator fan motor of mini-split systems and central air conditioning units to spin the drum/squirrel-cage fan. Air Purifiers & Dehumidifiers: Powers the medium-sized internal blower fans that push air through filtration stages. 3. Small Motorized Machinery Evaporative Air Coolers: Drives both the internal water pump and the primary cooling fan motor in portable “swamp coolers.” Small Centrifugal Pumps: Used in low-power fountain pumps, garden water features, or automated display turntables. ⚠️ Installation Safety Tip: Even at 3µF, a capacitor can hold a painful residual electrical shock long after the appliance is unplugged. Always turn off the power breaker, unplug the machine, and safely discharge the old capacitor by bridging its two wire connections with an insulated tool before touching the bare wires.