Taking NZ Appliances Overseas: Read the Power Label

Before taking a New Zealand appliance overseas, read its rating label. New Zealand mains electricity is nominally 230V at 50Hz. Other destinations may use a different supply voltage, a different frequency and a different plug. A plug that physically fits does not prove an appliance is electrically compatible.

This guide is about mains-powered appliances such as hair dryers, shavers, straighteners and chargers, not simply USB cable shapes. The safest decision comes from checking the exact device label and the destination's supply before departure.

Find the voltage and frequency on the appliance label

Look on the underside, back, handle, power brick or manufacturer manual for the input rating. The label may say Input 100–240V ~ 50/60Hz, 220–240V ~ 50Hz or 120V ~ 60Hz. The tilde indicates alternating-current input. A wide input range covering the destination's voltage and frequency is normally useful for travel, but always follow the manufacturer's instructions.

Check the input rating on a detachable charger or power brick, not just the output supplied to the device. For example, a laptop power supply may take 100–240V AC from the wall and deliver a much lower DC voltage to the laptop. That does not mean the laptop itself can be plugged directly into mains electricity.

Travel adaptor, voltage converter or transformer?

A travel adaptor changes the plug shape so a correctly rated appliance can connect to another country's socket. It does not change voltage or frequency. A voltage converter or transformer is a separate device intended to alter supply voltage within its specified limits. Many transformers do not alter 50Hz to 60Hz.

Before using any converter, verify the appliance's wattage, starting load, earthing requirements, operating frequency and the converter's continuous rating. High-wattage heat appliances and motor-driven devices can be particularly poor choices for conversion. Do not use improvised plug modifications or defeat an earth connection.

Examples of common power labels

Taking a hair dryer or hair straightener overseas

Hair dryers and straighteners are often high-power appliances. Some are genuinely dual-voltage and have a labelled voltage selector; others are fixed-voltage units. Do not assume that a device with an Australian or NZ plug works in the USA simply because it can be connected through an adaptor.

If the label says only 220–240V, a visit to a 120V country is a strong reason to use a suitable locally rated appliance rather than carry a large converter. Check any dual-voltage selector setting before connecting the device, exactly as the manufacturer instructs. Also observe the appliance's wattage and local socket restrictions.

For choosing between hair dryers, shavers and related appliances, see our guide to grooming tech in NZ. Check the voltage rating on the actual model before travelling.

Taking an electric shaver overseas

Electric shavers differ by model. One may use a universal-input mains charger, another may have a fixed-voltage charging stand and a third may charge by USB. Read the specific label, not a general claim about the brand. As an example of the product type, view the Philips 5000X wet and dry electric shaver at TSS; its exact charging requirements must be confirmed from its own model documentation before travel.

Which travel plug adaptor do I need?

Travelling to Australia? New Zealand and Australia use the same Type I plug and nominal 230V, 50Hz electricity supply, so a standard NZ appliance with a suitable NZ plug normally plugs straight into an Australian socket without a travel adaptor or voltage converter. Check the individual appliance label and any special socket requirements. Other destinations, including some Pacific islands, may use Type I sockets, but confirm the local supply and outlet before travelling.

For USB-C chargers, ports and plug-adaptor selection, read our travel chargers guide. This article focuses on the electrical input rating of mains appliances.

First verify the country's actual socket type and your appliance's electrical compatibility. Plug standards can differ even between countries with similar voltages. Hotels may also have specialised shaver sockets that are not intended for general electrical appliances. Buy the correct outbound adaptor rather than assuming an inbound adaptor is reversible.

For examples of NZ outbound products currently listed by TSS, see the Jackson UK, Hong Kong and Singapore travel adaptor, Jackson Europe travel adaptor, Jackson USA travel adaptor, Jackson India travel adaptor and Jackson Japan travel adaptor. Destinations, plug types, power ratings, USB output and compatibility must be checked against the product instructions and the place you are visiting.

If visiting several countries, compare the socket compatibility and power limits of a Jackson universal outbound travel adaptor before choosing it. A universal plug mechanism still does not automatically make a fixed-voltage hair dryer safe for every destination.

Checklist before you pack

1. Read and photograph the input label on every mains-powered appliance and its charger.
2. Check the destination's normal voltage, frequency and socket type using a current official electrical-safety or destination-country source; the MBIE voltage comparison is a starting point, but confirm the local plug type separately.
3. Confirm that the full voltage and frequency range is compatible. If it is not, seek manufacturer guidance or leave the appliance at home.
4. Check whether the appliance needs an earthed connection and that the chosen adaptor preserves required safety protection.
5. Check wattage or amperage against the adaptor, power board and accommodation's limits.
6. Inspect cords, plugs, chargers and adaptors for damage before travel.
7. On arrival, start with the correct power supply and make sure nothing heats abnormally or smells of burning. Disconnect immediately if anything appears wrong.

Why the frequency figure matters

Countries using 60Hz instead of 50Hz may cause problems for certain motors, clocks and other frequency-dependent equipment. Even when a converter changes the voltage, it may leave the frequency unchanged. The difference is not always visible from plug design or product appearance. For an appliance rated at 50Hz only, ask the manufacturer before attempting to run it on 60Hz.

What if your appliance does not work overseas?

Unplug it before troubleshooting. Recheck the label, destination supply, adaptor direction and socket rating. Check that a removable power brick is fully connected and any permitted voltage selector is correctly set before reuse. Do not repeatedly try an appliance that trips the supply, produces unusual noise, overheats, sparks or smells burnt. Do not alter a plug or bypass the earth connection to make it fit.

For a fixed-voltage product, the practical outcome may be to buy or borrow a compliant local appliance. If you are unsure about compatibility, seek advice from the appliance manufacturer or a suitably qualified electrician.

Frequently asked questions

Can I use my New Zealand hair dryer in the USA?

Only if the hair dryer's rating includes the local supply, normally around 120V at 60Hz in the USA, and the manufacturer permits that use. A 220–240V-only hair dryer will not operate as intended on a 120V socket. A simple plug adaptor cannot fix that; a locally rated hair dryer is often the safer practical option.

Does a travel adaptor convert 230V into 110V?

No. A standard travel plug adaptor changes the plug arrangement only. Check the voltage and frequency printed on the appliance or power supply before plugging it in.

What does input 100–240V 50/60Hz mean?

It indicates a power supply designed to accept an AC input across that voltage and frequency range, subject to the manufacturer's instructions. You still need a suitable safe plug connection for the destination, and the output of the charger must match the device.

Can I take my New Zealand electric shaver overseas?

Often, but check the exact shaver or charger label. Some accept 100–240V 50/60Hz and others do not. A USB-powered shaver still depends on a suitable, correctly rated USB power supply.

Does a voltage converter also change 50Hz to 60Hz?

Not necessarily. Many voltage transformers change voltage without changing mains frequency. Appliances with motors, timing circuits or heating elements may have restrictions, so check the manufacturer before using a converter.

Further safety guidance

Safety references reviewed 10 November 2026. The featured image is an illustrative travel scene; the product photographs in the article are genuine TSS catalogue images.

For independent reference, consult WorkSafe NZ appliance safety guidance, Electrical Safety First's explanation of adaptors and voltage conversion and MBIE's explanation of international voltage and frequency differences. Ratings on individual appliances and current local electrical rules always take precedence over general travel advice.