AC Motor Capacitors: CBB60, CBB61, CBB65 & CD60
AC motor capacitors by duty, construction and circuit
This collection groups motor-capacitor listings for washing machines, pumps, fans, air conditioners and compressors. Its products include CBB60 cylindrical motor-run film capacitors, CBB61 rectangular fan capacitors, CBB65 compressor-oriented single and dual-section capacitors, and CD60-labelled higher-capacitance motor-start choices. The name of a motor or a seller's use of “start” does not determine whether a particular part is meant to remain energized; identify run versus intermittent start duty from the exact part and equipment documentation.
Compare the components before buying
- CBB60 run styles: Listings show different µF choices, lead-wire, spade-tab and four-tab double-insert forms, plus screw or stud mounting. Four tabs can represent duplicated connection points rather than four separate sections; verify the actual terminal diagram. The catalog includes 250 VAC and 450 VAC claims, which must be checked against the chosen variant and its marking, not applied across the range.
- CBB61 fan styles: Smaller rectangular options for fan motors include single-section and multi-wire arrangements. A three-wire selection such as 0.4+1.2 µF represents separate electrical values and needs its original connection diagram.
- CBB65 compressor styles: Both single-value and dual-value listings appear, including 25+5 and 60+5 µF selections. A dual-run component has separate sections and terminal identities; it is not one capacitor equal to the sum of its values.
- CD60 start styles: Listings include 200, 300 and 400 µF-class options. A start capacitor designed for switched, intermittent operation must not be substituted for a continuously energized run capacitor on the basis of capacitance or voltage alone. A listing that bundles a starter or relay is a different assembly from a bare capacitor.
Selection workflow
- Read the original part and motor service documentation for duty, each capacitance in µF, tolerance, specified AC voltage, line frequency, temperature, applicable standards and any required protective class or approvals.
- Check the exact selected variant and physical marking. Some listings place 1PCS or other pack quantities under “Rated Voltage”; these are quantities, not electrical ratings. A headline 450 V does not prove every variation is 450 VAC.
- Match number of sections and terminal grouping, wire length or spade size, case diameter and height, stud thread, mounting position and enclosure clearance. Confirm whether the equipment calls for a capacitor alone or a switched start assembly.
- Use the motor or appliance maker's wiring and replacement specifications or a qualified service technician. This collection guide is not a general-purpose mains wiring instruction.
Purchase checklist and FAQ
Keep the motor/equipment model and original marking, start/run duty, each section's µF and tolerance, VAC and frequency, circuit diagram, terminal style, case dimensions, mounting, approvals and pack quantity.
Can I replace a CD60 start part with a CBB60 run part? Not from a matching voltage or µF value alone. Switching duty, capacitance and circuit requirements differ.
Does “450V” guarantee an AC-rated replacement? No. Check that the selected part is marked for the necessary continuous or intermittent AC duty; do not confuse a DC rating with VAC.
Are four tabs the same as four capacitors? No. Determine the internal sections and terminal grouping on the actual unit.
Is an appliance name proof of fit? No. Verify the precise service part and installation requirements; broad appliance lists and “original” claims alone do not establish compatibility or provenance.
