# 110v electrical requirements

**URL:** <https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045>\
**Category:** Uncategorized\
**Created:** [December 19, 2024, 3:05pm UTC](https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045 "2024-12-19T15:05:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Johnny1](https://avatars.discourse-cdn.com/v4/letter/j/3ec8ea/32.png) [@Johnny1](https://forum.onefinitycnc.com/u/Johnny1)\
**Post date:** [December 19, 2024, 3:05pm UTC](https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045/1 "2024-12-19T15:05:45Z")

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What size wiring is needed for an Elite series machine with a 110v spindle? Circuit breaker amperage also please.

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**Author:** ![Borgorl](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Borgorl](https://forum.onefinitycnc.com/u/Borgorl)\
**Post date:** [December 20, 2024, 2:04am UTC](https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045/3 "2024-12-20T02:04:26Z")

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Do we know the power draw of the VFD itself? I only have two circuits in my basement so I was thinking of doing the spindle and VFD on a dedicated circuit, and then the other circuit would be for the Masso motors, Masso controller, and dust collector. I think I read somewhere that the Masso motors draw about 4 amps

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**Author:** ![DCK](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@DCK](https://forum.onefinitycnc.com/u/DCK)\
**Post date:** [December 20, 2024, 4:03am UTC](https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045/5 "2024-12-20T04:03:42Z")

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A 20A breaker is probably safe, but I definitely wouldn’t go lower.

The power requirements depend on how they’re defining the spindle power. Is it the mechanical power at the collet converted to kW or the power consumption of the VFD? If it’s the first (the correct way to measure spindle power), that wouldn’t account for the efficiency of the VFD and the breaker may need to be larger than 20A.

Hopefully, they’re not doing like some of the cheaper Chinese manufacturers do to make their spindles seem more powerful: using the VFD power consumption, but not informing buyers that they’re advertising peak watts (W × ~1.414) rather than rms watts. Though, a 15A breaker would be sufficient if that was the case.

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**Author:** ![Johnny1](https://avatars.discourse-cdn.com/v4/letter/j/3ec8ea/32.png) [@Johnny1](https://forum.onefinitycnc.com/u/Johnny1)\
**Post date:** [December 20, 2024, 1:27pm UTC](https://forum.onefinitycnc.com/t/110v-electrical-requirements/30045/6 "2024-12-20T13:27:48Z")

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Thanks for your help.