Lug: 38 x 17 x 27 mm (L x W x H). Lead: on request
Old part rated 370V or 440V? A 450V cap is the correct replacement for any motor-run capacitor rated 450V or below: the voltage is a ceiling, not a target; never fit a lower one. Match the µF on your old capacitor's label, within ±10%.
About this part
CBB61 box-type motor run capacitor, 3µF, 450VAC, for heat pump outdoor fans, rangehoods, extractor fans and small fan motors. Available with lug terminals or wire leads.
Will it fit?
Match the µF printed on your old capacitor within ±10%.
The voltage must be the same or higher than the original, so this 450V part is fine in place of a 250V, 370V or 400V capacitor. Never fit a lower voltage.
Single-section, two-terminal capacitors only. If your old one has 3 or more wires, or several µF values printed on it, this is not the right part.
Check the size against the space before ordering. The lug version measures 38 x 17 x 27 mm (L x W x H); the lead version’s size is on request.
Check the old part before fitting: match the µF and voltage on its label, and turn the power off and discharge the old capacitor before you touch its terminals.
What you're buying
A 3µF 450VAC motor run capacitor in the CBB61 body, designed to run continuously while the motor is operating. This listing covers every terminal style (Lug or Lead): choose yours from the Terminal dropdown above to match how your old capacitor's wires come out. The µF and voltage are identical across all of them: only the connection differs.
µF (capacitance) and voltage are the two specs that matter for fitment. Match the µF on the old capacitor's label, within ±10%: too low and the motor won't start, too high and it will run hot. Voltage must be equal or higher than the original; you can safely substitute a 450VAC unit for any motor specced at 450V or below, but never the other way around.
This 3µF cap is sold as one listing with 2 terminal styles (Lug or Lead), selectable from the dropdown above: the µF and voltage are identical across all of them, only the connection differs. Lug: quick-connect tabs that take push-on spade connectors. Lead: wire leads you join with crimp connectors or into a terminal block. Pick the style that matches how your old capacitor connected, or fit a spade adapter to convert between them.
Construction
small square box, typically used in fans and low-power range hoods.
Polypropylene film, self-healing: small punctures clear without short-circuit.
Terminal options: Lug or Lead. Select on the page.
What not to buy this for
Don't buy this for a motor-start application (compressor relay, pump priming). Motor-start caps usually have a much higher µF for short bursts and a CD60 body. This unit is rated for continuous duty, not the high inrush of a start cap.
Don't buy by µF alone: physical size needs to fit the housing, and the terminal style (pick Lug or Lead to match your wiring) needs to match your existing wiring or you'll need an adapter.
My old capacitor is rated 370V or 440V. Can I fit this 450V one?
Old part rated 370V or 440V? A 450V cap is the correct replacement for any motor-run capacitor rated 450V or below: the voltage is a ceiling, not a target; never fit a lower one. Match the µF on your old capacitor's label, within ±10%.
How closely does the 3µF capacitance need to match my old capacitor?
Match the µF on your old capacitor's label, within ±10%. Too low and the motor may not start; too high and it can run hot. Read the µF (and the voltage) printed on the side of your existing capacitor before ordering.
Which terminal option should I choose?
This listing covers 2 terminal styles (Lug, Lead): the µF and voltage are identical across all of them, only the connection differs. Pick the style from the Terminal dropdown that matches how your old capacitor's wires came out, or fit a spade adapter to convert between them.
What does shipping cost, and is anything added at checkout?
Ships from New Zealand via NZ Post, tracked. NZ$12.95 NZ-wide shipping, free over NZ$100. CapacitorsNZ is not GST registered, so no GST is charged or added at checkout. Ordered in for you, dispatched from NZ in about 2 weeks.
