u/Complete-Award-6241

▲ 5 r/electrical+1 crossposts

Bought a 3000W Machine — Can’t even test it

Asking in case anyone has any experience with this. I recently imported a machine from China to start a small home-based business in Toronto. The manufacturer converted it to 120V for North American use, but we’re running into power issues and wanted to get advice before doing anything unsafe.

The main machine is rated at 3,000W and there’s also an attached air compressor rated around 1,600W.

We tried to test it in our condo, but the breaker trips almost immediately. Our condo mainly has 15A circuits, so we understand we’re probably exceeding what the circuits can safely handle. We tested it a few times before stopping completely.

The only higher-amperage circuits we likely have access to are:
- Washing machine circuit (30A, difficult to access)
- Stove circuit (40A)

(Btw we’re renters, so installing a dedicated new line may not be realistic)

A few questions:
- Is it even feasible/safe to run something like this in a residential condo setup?
- Would a dedicated 30A circuit theoretically handle this?
- Are there any temporary solutions for testing?
- Should we even consider a generator for something like this? If so, are there large enough battery/inverter generators that could safely handle this load without using gas/propane?
- Would renting a small workshop/flex industrial space make more sense? Our priority is keeping costs low.
- We also have a friend who owns a self-serve laundromat and may allow us to rent a small corner of the shop. Would that be more suitable electrically?

Appreciate any insight. Thanks in advance!

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u/Complete-Award-6241 — 1 day ago
▲ 16 r/electrical+2 crossposts

Imported a 3,000W machine for a home-based business in Toronto — constantly tripping breakers

I recently imported a machine from China to start a small home-based business in Toronto. The manufacturer converted it to 120V for North American use, but we’re running into power issues and wanted to get advice before doing anything unsafe.

The main machine is rated at 3,000W and there’s also an attached air compressor rated around 1,600W.

We tried to test it in our condo, but the breaker trips almost immediately. Our condo mainly has 15A circuits, so we understand we’re probably exceeding what the circuits can safely handle. We tested it a few times before stopping completely.

The only higher-amperage circuits we likely have access to are:
- Washing machine circuit (30A, difficult to access)
- Stove circuit (40A)

(Btw we’re renters, so installing a dedicated new line may not be realistic)

A few questions:
- Is it even feasible/safe to run something like this in a residential condo setup? Could I plug them in separate outlets (the machine in the 40A stove and the compressor in a different outlet close by?
- Would a dedicated 30A circuit theoretically handle this?
- Are there any temporary solutions for testing?
- Should we even consider a generator for something like this? If so, are there large enough battery/inverter generators that could safely handle this load without using gas/propane?
- Would renting a small workshop/flex industrial space make more sense? Our priority is keeping costs low.
- We also have a friend who owns a self-serve laundromat and may allow us to rent a small corner of the shop. Would that be more suitable electrically?

Appreciate any insight. Thanks in advance!

EDIT: The machine was originally designed for 220–240V operation in China. We specifically asked the manufacturer to convert it to 110–120V for North American residential use because we assumed it would be easier to power here.

Based on the replies so far, it sounds like converting it to 120V may have actually created the issue due to the extremely high amperage/current draw (~4600W combined load).

We’re now looking into whether it can safely be reconfigured back to 220–240V and operated on a proper dedicated circuit instead.

u/Complete-Award-6241 — 1 day ago