Ebara DWO 150M Capacitor

The capacitor listed for the Ebara DWO 150M is a 35 µF (35 uF / 35 MFD), 450 VAC CBB60 motor-run capacitor with core leads, sold under the CapacitorsNZ name. Before ordering, read the µF value printed on your old capacitor: if it shows anything other than 35 µF, order that value instead, because a run capacitor has to match the motor winding it was paired with.

Choosing the right capacitor for the Ebara DWO 150M

Three things matter when replacing a run capacitor. First, capacitance: the new one should match the µF (also written uF or MFD) on the old one, normally within ±5%. Second, voltage: the replacement needs a voltage rating equal to or higher than the original, and 450 VAC gives comfortable headroom on 230 V mains. Third, connections and size: this one has core leads, so it is joined into the circuit rather than pushed onto spade tabs, and the CBB60 cylinder has to fit the space the old one came out of.

Pump labels and capacitor values do not always line up, especially if a motor has been swapped in the past, so the old capacitor is the reference to trust.

Signs the Ebara DWO 150M capacitor has failed

A run capacitor gives a single-phase motor the phase shift it needs to start turning and to run smoothly. As it weakens you may notice:

• a hum at switch-on but no spin, unless the shaft is flicked by hand
• the breaker or the motor’s thermal overload tripping soon after start
• the motor running hot or sluggish
• a swollen, split or oily capacitor case

Same-rated pumps and swapping the capacitor safely

The same 35 µF 450 VAC rating is also listed for the Filtermaster SB30. Without a pump model attached, this part is our 35 µF 450 V CBB60 capacitor. If the seal on your DWO 150M is weeping as well, the Ebara DWO 150M service kit pairs this capacitor with the matching seal, and other Ebara parts are on our Ebara service kits page.

Before you touch the leads, isolate the pump and treat the old capacitor as live until it has been properly discharged, as it can hold a charge after the power is off. If you are not confident doing that, have an electrician make the swap.

Before you order

Check the old part before fitting: match the µF printed on your old capacitor.

What size capacitor does an Ebara DWO 150M take?

The capacitor listed for the Ebara DWO 150M is 35 µF, 450 VAC, with flying leads. Always match the µF printed on your old capacitor before ordering.

My DWO 150M capacitor shows a different µF. What should I do?

Order the µF value printed on your old capacitor rather than this 35 µF one. If the label is unreadable, send us a photo of it and the Ebara DWO 150M pump label through our contact page.

Can I use a 450 VAC capacitor on my Ebara DWO 150M if the old one was a lower voltage?

Yes. A run capacitor can have a higher voltage rating than the original, as long as the µF matches. The capacitor listed for the Ebara DWO 150M is a 450 VAC part.

What connections does the Ebara DWO 150M capacitor have?

The capacitor to suit the Ebara DWO 150M has flying leads rather than spade terminals, so the leads are joined into the motor's wiring.

How do I know if the Ebara DWO 150M capacitor is faulty?

If the Ebara DWO 150M hums without spinning, trips the overload or runs hot, the capacitor is a likely cause. A bulging or leaking case confirms it.

What if it doesn't fit?

If you're unsure, send us a photo of your old part and the pump's label before ordering.