In countries with 220 v ac, is it safe to use this 3000 w 50 hz step up & step down converter to my keurig coffee maker 1470 w 60 hz 120 v ac?

The problem is that most countries will not have circuit breakers That could take 3000 W draw when you initially turn on this unit. That was the exact problem I had in Tel Aviv. Every time I plugged in the unit and switched it on it popped the circuit breakers in my house. I would do research but I wouldn’t go above 1500 W max to run a coffee maker.

Will this work with a 120V 1050W espresso machine in Australia?

I don’t think so. I’ve uses it for an European espresso machine with similar specks and it failed after a few days. I think you need at least 3000W to 5000W

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3000W ST-Pro Auto Step Up & Step Down Voltage Transformer Converter, Heavy-Duty AC 110/220V Converter with US Standard, Universal, Schuko AC Outlets & DC 5V USB Port by Goldsource [3-Year Warranty]

3000W ST-Pro Auto Step Up & Step Down Voltage Transformer Converter, Heavy-Duty AC 110/220V Converter with US Standard, Universal, Schuko AC Outlets & DC 5V USB Port by Goldsource [3-Year Warranty]

Product ID: 97166192

Details

Brand
Goldsource
Manufacturer
Goldsource
Mounting Type
Plug Mount
Power Source
Corded

⚡3000W max load power

🔄Step-up & step-down voltage

🔌4 versatile AC outlets + USB

Description

⚡ Power your world, anywhere you go!

SOFT START SAFETY - Built-in easy start function prevents circuit breaker trips and protects your home’s electrical system.
DUAL VOLTAGE MASTERY - Seamlessly converts 110V to 220V and vice versa, perfect for global gadget compatibility.
POWERHOUSE PERFORMANCE - Handles up to 3000W max load for heavy-duty appliances without breaking a sweat.
PLUG PLAY VERSATILITY - Equipped with US, Universal, Schuko AC outlets plus a 5V USB port for all your device needs.
BUILT TO LAST WITH WARRANTY - Backed by a 3-year warranty, ensuring reliable power conversion for years to come.

The Goldsource 3000W ST-Pro Voltage Transformer is a heavy-duty, CE-certified step-up and step-down converter designed for professional-grade appliance use. Featuring a 3000W maximum load capacity, four diverse AC outlets including US, Universal, and Schuko types, plus a 5V USB port, it supports a wide range of devices. Its soft-start circuit prevents electrical surges, ensuring safe operation without tripping breakers. Ideal for millennial professionals who demand reliable, versatile power solutions for both home and travel, all backed by a 3-year warranty.

Specifications

ASIN	B07KGMK47S
Best Sellers Rank	#924,889 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4,365 in Power Converters
Brand	Goldsource
Brand Name	Goldsource
Customer Reviews	4.3 out of 5 stars 184 Reviews
EU Spare Part Availability Duration	3 Years
Manufacturer	Goldsource
Maximum Frequency	60 Hz
Minimum Frequency	50 Hz
Model	ST-Pro 3000W
Mounting Type	Plug Mount
Part Number	ST
Power Source	Corded Electric

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