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Pump capacitor fitment

Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) Capacitor

The Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) is a 1.50 kW single-phase pressure pump (multistage) commonly found in well & domestic pumps setups. Its motor runs on a 30µF 450V motor-run capacitor in a CBB60-style can — here's the exact replacement and how to confirm it.

Pump type
pressure pump (multistage)
Motor
1.50 kW · single-phase
Run capacitor
30µF · 450V · CBB60
Start capacitor
150µF (separate)
Tolerance
±5%
Terminal
flying-lead
Application
Well & domestic pumps
Also sold as
VM1-21M1, VM1-23M1, VM1-25M1, VM3-15M1, VM5-10M1, VM10-4M1, VM1-21, VM1-23, VM1-25, VM3-15, VM5-10, VM10-4, VM 1.5kW
Fitment source
Manufacturer-documented
Manufacturer-documented30µF · 450V

The Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) pressure pump (multistage) uses a 30µF 450V motor-run capacitor (CBB60-style) — it's the part that helps the single-phase motor start and keep running smoothly. We source this value from manufacturer / supplier documentation. Match the replacement to 30µF (about 27–33µF) at 450V or higher; the checklist below covers how to confirm it against your own capacitor.

The capacitor that fits

One listing covers every terminal style — open it and choose your terminal (lug, flying lead, or stud) from the dropdown to match how your old capacitor's wires come out. Not sure? Any works electrically; the terminal is just the connection.

How to be sure you get the right one

  • µF must match — the VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) needs 30µF (about 27–33µF), within roughly ±5–10%. Too low and the motor won't start; too high and it runs hot.
  • Voltage can go up, never down — a 450V (or higher) cap is correct here; a 450V part safely replaces a 370V or 440V one. Don't fit below 450V.
  • Check the terminal + size — make sure the new cap physically fits the housing and the connections match (the VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) typically uses a flying-lead terminal).
  • When in doubt, read your old cap — the printed µF and voltage on the part you're replacing is the final word.

Common questions — Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) capacitor

What capacitor does the Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) use?

A 30µF 450V motor-run capacitor (CBB60-style). Always confirm against the rating printed on your existing capacitor before ordering.

Can I fit a higher-voltage capacitor in the Davey VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1)?

Yes — voltage can be equal or higher, never lower. A capacitor rated 450V or above is fine (450V is the usual choice), as long as the µF still matches (30µF).

Does the VM 1.5kW (VM1-21/23/25M1 / VM3-15M1 / VM5-10M1 / VM10-4M1) need a start capacitor as well?

Yes — alongside the 30µF run capacitor it uses a separate 150µF start capacitor. Replace whichever has failed (or both if you're unsure).

Other Davey pump capacitors

Replacing the capacitor on a different Davey? These models have a confirmed or documented fitment too:

Use the find-my-part wizardBrowse all well & domestic pumps capsPump capacitor guide

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