The ISO range 

Ready for anything 

New Zealand's harsh environments demand the toughest gear. From heatwaves and alpine cold to dust, rain, and salty coastal air—electrical professionals need an option that won’t quit.

That’s why for decades, industries have trusted ISO™ by NHP: the most reliable range of industrial-strength plugs, sockets, and switches that can perform inside and out.

Why choose ISO™?

Built for real-world conditions, ISO delivers safety, durability, and ease of use, no matter the job.

Weatherproof & corrosion-resistant (IP66 rated)

Over 400 options from 10A to 50A, in 3, 4, and 5 pin configurations

Chemical resistant materials available in white or orange

UV stabilised for long-term outdoor installs

Compliant with AS/NZS and IEC standards

Designed for the toughest jobs

We get it. You want reliability, safety, and a clean finish you can take pride in. That’s why ISO is designed and tested for the way you work. Tough enough for the harshest conditions and refined enough to make every install look and perform professionally.

It also comes with built-in features that make all the difference:

Glove-friendly operation

Oversized handles and large latches for easy use

Fast installation

Smart cable entry, compact backboxes, and pre-wired options

Safety interlocks

Auto-switching prevents live disconnection

Padlockable covers

For extra on-site protection

RCD compatibility

Pairs easily with RCD protection where required 

Clean finish

Rounded corners and smooth surfaces prevent dust and grime build-up 

ISO™: The No Worries Attitude to New Zealand Conditions.

Rain, snow, salt, or sun—ISO keeps power connected safely and reliably, wherever you need it. UV tough, chemical resistant, and built for high-impact environments.

From dairy farms to ski fields, seafood docks to outdoor venues—where could you use it?

Tough enough for every environment

ISO is engineered to thrive where others fail:

IP66 protection

Sealed against dust, water, and grime

Temperature resilient

Performs in extreme heat and cold

Impact resistant

High-strength housing built to last

Chemical resistant

Withstands detergents, solvents, and petroleum products 

Highly corrosion resistant

Ideal for marine, mining, and heavy industry

The power of local

As a 100% Australian-owned company, NHP understands the conditions you face. ISO is available exclusively through your local electrical wholesaler, giving you access to local stock, expert advice, and decades of trusted performance across Australia and New Zealand. This ensures your projects stay safe, compliant, and on track.