400 Watt Japan to USA/Canada Step Down Transformer – Use 100 Volt Appliances in USA/ Canada AJD-400


ACUPWR’s AJD-400 model is a grounded step down transformer that converts voltage from 100 volts to 110-120 volts, allowing you to use Japanese products (which require 100 volts) in the USA and Canada, where the voltage is 110-120 volts.

Please note: The AJD-400 is for using appliances that run on Japan’s 100-volt standard in the USA and Canada. ACUPWR manufactures other step down voltage transformers/converters (with similar wattage loads) that can be used for other countries and regions, such as the AD series (220-240 volts down to 110-120), the AJSD series (127-130 volts down to 110-120 for using USA/Canada appliances in Mexico and Brazil, and the AUD series combination step up/step down model (110-120 volts up to 220-240 and from 220-240 volts down to 110-120).

  • Made for home, commercial, and industrial use
  • Converts voltage from 110-120 volts down to 100 volts
  • Allows appliances running on 100 volts to be used in the USA and Canada
  • Compatible appliances include electronics such as laptop computers, phone chargers, LED TVs, stereo systems, some electronic gaming systems, smaller window fans, and much more (please refer to our transformer guide)
  • ACUPWR products are trusted by military, NASA, and government agencies worldwide
  • Can handle up to 120 percent wattage beyond stated rating (industry standard is only 50 percent)
  • Proudly made in the USA
  • Rated at 400 watts
  • Type B plug and NEMA 5-15R input
  • CE approved
  • 3 lbs; Dimensions (W x H x D): 2.5” x 3” x 4”
  • Lifetime warranty, up to $10,000 damage coverage
  • Bench tested for quality assurance and years of reliability

This unit is rated for 400-watt loads and suitable for home, commercial, and industrial applications. Compatible appliances include electronics such as laptop computers, phone chargers, LED TVs, stereo systems, some electronic gaming systems, paint sprayers, smaller window fans, and much more (please refer to our transformer guide). It features a three-pin Type B plug and a NEMA type 5-15R input receptacle. Although Japan’s 100 volts are only slightly lower than the 110-120 volts used in the USA and Canada, the difference is particularly noticeable when using electronic devices.

As with all ACUPWR products, the AJD-400 is proudly manufactured in the USA using the best materials available. This includes copper wiring that allows the AJD-400 to operate under heavy duress, and in the most heavy-duty situations. Unlike less expensive, foreign-made products using aluminum wiring, our products are designed to last for decades. Each unit is hand assembled in our factory and bench-tested at a full-load (the maximum stated wattage) to ensure years of dependability.

ACUPWR stands by its products by providing a lifetime warranty and damage coverage up to $10,000. We count military and government agencies, including NASA’s Goddard Space Flight Center, among our customers for good reason: ACUPWR products are the best-made, most dependable, and most long-lasting transformers available.

When considering which model ACUPWR transformer/voltage converter is best for your needs, keep in mind that our products are safe for continuous power at 120 percent beyond the stated wattage, unlike other products that adhere to an industry standard of 2-3 times higher than the appliance’s stated wattage. So, for example, an appliance rated for 300 watts of consumption would, according to the industry standard, require a 900-watt transformer. With an ACUPWR transformer, you can safely use your 300-watt appliance with a 300-watt transformer/converter; our products, remember, can handle 120-percent beyond their stated wattage handling ability.

ACUPWR recommends that you purchase our Global Surge Protector to protect your appliances from voltage spikes. Additionally, our Global Surge Protector allows you to plug in up to 6 appliances using any plug type, thus ensuring its use anywhere in the world. We also highly recommend our voltage stabilizers/line conditioners in countries where the line voltage is particularly unstable.

Don’t see what you’re looking for? We’ll make a customized voltage transformer specifically for your needs. Call us at 212-380-1191 to discuss further.

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