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Email us: sales@seaward-groupusa.com
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Welcome to Seaward

Our number one priority is keeping people safe, which we’ve been doing for more than three decades as a global leader in the manufacture of electrical safety test equipment.

Our hipot testers give manufacturers confidence in the quality and safety of their products that they can pass on to their customers. Plus, they all come with on-board storage to support and improve testing and reporting processes.

Tested, Trusted… Worldwide.

Who are Seaward?

  • We’re based in Tampa, Florida, and County Durham, UK.
  • We are proud of our reputation for innovation; we want people to be safe and to do that we continue to innovate and invest in our people.
  • We work with manufacturers, like yourself, to understand the production process, what’s important, and how we can fulfil your needs.
  • We even provide free training and live product demos to help you do your job well.
  • We have a fully equipped service center because we understand the importance of good aftercare.

Who else is using Seaward hipot testers?

Some of the biggest names in the industry already trust our products to check the safety of theirs.

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Click here to view case studies from some of our customers


Hipot Tester testing LED lights
Hipot Tester testing electrical safety
Hipot Tester testing lights
Hipot Tester on production line

Say hello to the HAL Series of hipot testers


Built to be flexible and functional, our HAL series of hipot testers dramatically improve the quality and productivity of your production line safety testing.

The HAL series embraces a full range of functionality requirements for production line testing, from low volume manual testing to high volume automated testing.

HAL 104 Hipot Tester

Key features

  • Large memory for test result storage with the capability to add a product reference (serial number) for complete traceability of testing.
  • Fully configurable automatic test sequences to improve your efficiency.
  • Compatible with label printer and barcode scanner.
  • Additional automation features available with our Safety e-Base Software.
  • Tests to UL 73, UL 621, UL 1598, UL 8750, IEC/EN 60950, IEC/EN 61010, BS EN 60335-1, BS EN 60598, and BS EN 60745, and many others.

Looking for the HAL Series Datasheet? Complete the form on this page to download.

Download Datasheet/Request a Quote


Optional Accessories

We have a number of accessories available for our HAL Series of hipot testers which increase your production line productivity and test area safety.

Status Beacon

Status Beacon

Desk Test n Tag Printer

Desk Test n Tag Printer

CCD Barcode Scanner

CCD Barcode Scanner

Y300 Fault Simulator

Y300 Fault Simulator

Safety e-Base Reporting Software

Safety e-Base Reporting Software


Which HAL is best for me?

Here’s a handy comparison table to help you chose your HAL perfect match.

Swipe to see full table
Features101103104LED
Ground Bond Testbulletbulletbullet
AC Hipot Testbulletbulletbulletbullet
DC Hipot Testbulletbulletbulletbullet
DC Insulation Resistance Testbulletbulletbulletbullet
ARC Detectionbulletbulletbulletbullet
Leakage Testbulletbullet
Load Power Testbullet
Load Power (200mVA resolution) Testbullet
Power Factorbulletbullet
Results Memorybulletbulletbulletbullet
Automation Optionbulletbulletbulletbullet
Barcode scanner/printer Optionbulletbulletbulletbullet

How can HAL help you?

Manufacturiong Hipot testing Customer Experience Manager

“Being able to store and recall test sequences, with password protection, gives me peace of mind. I know that the test procedure is always completed fully and every single product is tested to our exact standard again and again.”

Production Manager


Manufacturiong Hipot testing Customer Experience Manager

“We use our Seaward HAL hipot tester with the Desk Test n Tag Printer. It makes it a lot easier to check if the units have been tested before we package them for shipping. No tag, no test!”

Production Supervisor


Manufacturiong Hipot testing Customer Experience Manager

“Since we added a HAL LED to our production line, the number of ‘out of the box’ non-functioning returns have dropped. It’s become an effortless part of our production line safety test and has really saved the company money on warranty replacements.”

Customer Experience Manager


Looking for the HAL Series Datasheet? Complete the form on this page to download.

Download Datasheet/Request a Quote


More about our offices in Tampa, Florida

Service and Calibration Center in Tampa, Florida

Seaward have been supplying hipot testers and other electrical safety testing equipment out of our offices in Tampa, Florida for over 7 years.

On top of our comprehensive selection of testing soultion we also offer instrument servicing, repairs and calibration.

Get in touch today to see how we can help ensure your current equipment is maintained and working accurately and effectively.

Yes, I need help with servicing


More about Hipot Testing

What is Hipot Testing?

Hipot testing, in conjunction with earth bond testing (where applicable) form the core tests for electrical safety testing on a production line.

The hipot test, derived from the term High Potential Test, is a direct application of a high voltage to a unit under test. The test voltage is usually much higher than the usual operating voltage in order to stress the dielectric properties of the device under test.

The test is designed to detect that gaps or clearances between conductive parts and earth (or the product chassis) are sufficient and that degradation, such as pin holes, cracks in insulation and other protection devices have not resulted through production processes and or wear and tear, for example, a live conductor has not accidentally been crushed between the mating parts of the chassis, causing it to become live when switched on.

Breakdown in the insulation will result in current flowing across the test points of the Hipot tester, this current flow is commonly known as leakage. If this leakage current is too high the item under test is deemed to be unsafe and the test will fail.

Why carry out Hipot Testing?

The test is designed to ensure the safety of the product. In particular, legislation such as the LVD and issues of product liability, increase the need for manufacturers to illustrate due diligence.

Legislation such as the LVD, Machinery and Medical Directives demand that 100% of manufactured products are subjected to this test. In addition a number of independent and government product approvals agencies require that this test is performed, and that records are kept for each product design, and for each product manufactured. These organisations include:

  • Underwriters Laboratories (UL)
  • Canadian Standards Association (CSA)
  • International Electrotechnical Commission (IEC)
  • British Standards Institute (BSI)
  • German Electrical Engineers Association (VDE)
  • Technische Uberwachungs Verein (TUV)
  • Japanese Standards Institute (JIS)

How do we carry out a Hipot Test?

All Hipot Testers on the market will have a High Voltage terminal and a Return Terminal. The test is performed by applying a voltage, usually greater than 1000V to the line conductors of the item under test (usually Live and Neutral).

The High Voltage terminal connected to the line conductors and the Return Terminal, usually connected to the Chassis of the product, or the Earth Conductor. The test voltage is applied and the current flowing across the conductors is measured, providing this level of current is low enough not to pose a hazard, the test will complete and the item under test will be deemed safe.

To save time it is normal that the live and neutral conductors are strapped together during this test, rather than testing each one individually against the ground.

Read more


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Click here to request your free online demo of the HAL Series today