# Ultimate Elite Build

**URL:** https://forum.onefinitycnc.com/t/ultimate-elite-build/17761
**Category:** Elite Series (Masso & Redline) (Gen 1)
**Created:** [December 31, 2022, 5:26pm UTC](https://forum.onefinitycnc.com/t/ultimate-elite-build/17761 "2022-12-31T17:26:49Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)
#### Post date: [December 31, 2022, 7:20pm UTC](https://forum.onefinitycnc.com/t/ultimate-elite-build/17761/2 "2022-12-31T19:20:40Z")

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Hey Doug,

I would avoid a 110 V VFD/spindle.

> [@What is the best go to spindle for onefinity x50 journeyman](https://forum.onefinitycnc.com/t/what-is-the-best-go-to-spindle-for-onefinity-x50-journeyman/15429/2):
>
> With 120 V you should be aware that all your wires and fuses will need to be dimensionated for double the current as if you use 240 V.
> 
> A [VFD](https://en.wikipedia.org/wiki/Variable-frequency_drive) with single-phase input made for a 2.2 kW spindle draws about 4.8 kVA max. power. With 240 V this means up to 24 A current, fuse got to be 30 A, VFD [wire size](https://en.wikipedia.org/wiki/IEC_60228) at its input got to be 5.3 mm² (~AWG10)**. If you want to use the same input power ([kVA](https://en.wikipedia.org/wiki/Volt-ampere)) with 120 V, you got to double all these [currents](https://en.wikipedia.org/wiki/Ampere) and [wire cross-section areas](https://en.wikipedia.org/wiki/IEC_60228)**.

I think there is a reason why [Omron produces no 100 V class VFDs](https://industrial.omron.co.uk/en/products/mx2) and [Hitachi produces 100 V class VFDs just up to 0.75 kW](https://www.hitachi-ies.co.jp/english/products/inv/wj200/index.htm) – because current (and subsequently wire size) would be too high, particularly on single-phase input.

Note that in the U.S., many people have [split-phase electricity](https://en.wikipedia.org/wiki/Split-phase_electric_power) (two 120 V phases shifted by 180°) which means even if they seem to have only 120 V outlets (which is between one hot and neutral) they usually have 240 V in their homes (between two hots of different phases) so an electrician can easily install a circuit with a [240 V outlet](https://en.wikipedia.org/wiki/NEMA_connector#NEMA_14) and circuit breaker.

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