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Seaward Primetest 250 Plus PAT Tester 403A910

Seaward PrimeTest 250 Plus, fast and efficient PAT testing with simple results download and label printing. Store up to 999 test records and download to a PC.

Next Day Delivery (subject to availability)

including VAT @ 20%
Regular Price:
  • Manufacturer Certificate Included
  • Memory function
  • Downloadable
  • Fast report generation
  • Automatic Test Sequences
  • Battery Powered
  • Software Included
  • FreeDelivery
  • 30DayMoneyBack
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Seaward Primestest 250 Plus PAT Tester 403A910

A simple PAT tester with results downloading and label printing


The PrimeTest 250+ offers fast and efficient electrical safety testing with label printing and data storage.

Enabling simple, professional and fast PAT testing, this versatile tester features all of the required tests of the IET 4th Edition Code of Practice along with USB download. It is also fully compatible with the Test n Tag Pro serial printer for quick and easy label printing without any setup required – just plug and print.

Seaward datalogger program is supplied as standard and this along with the single key download feature allows measurement data to be quickly and easily transferred from the PrimeTest 250+ to PC at the press of a button; whilst all records are date stamped for complete traceability.

Data is downloaded in CSV format and can be accessed by a wide range of software packages or alternatively imported directly into PATGuard 3 Elite for truly professional reports and certificates.

As with all Seaward battery powered PAT testers, accurate earth continuity tests are a given thanks to the unique “zap” circuit design.


Primestest 250 Plus Comes as Standard With:

  • Datalogger software
  • 0.5m extension adaptor
  • Earth lead with probe and clip
  • Mains lead
  • 6 x AA batteries
  • USB download lead
  • Carry case
  • Operating instructions
  • 2 year warranty (subject to terms and conditions, available at




Key Features:

  • Very easy to use 
  • Plug and print - easy label printing with no setup 
  • Date stamped results for full traceability 
  • Single key save 
  • Single key download 
  • Download software included 
  • Store 999 appliance records 
  • Industry standard download format 
  • Comprehensive range of electrical tests 
  • Test 3 phase appliances

Electrical Test Functions:

  • Low current earth continuity test guaranteeing accurate measurement 
  • Insulation resistance at 250/500V 
  • IEC lead test 
  • Protective conductor current 
  • Touch current 
  • 3 Phase leakage current (requires adaptor)
  • Alternative leakage current 
  • RCD test (30mA/150mA) 
  • Power socket test

Ideal Users:

  • Professional PAT Testers 
  • Service Engineers 
  • Facilities Managers

Fast, Simple PAT Testing

With Seaward’s press to test technology, the PrimeTest 250+ is extremely simple to grasp. Its light weight and small size along with battery power mean it is highly portable. The PrimeTest 250+ offers a comprehensive suite of fast and accurate electrical safety tests to enable almost any workplace appliance to be tested, including accurate and reliable earth continuity tests, 3 phase appliances and Residual Current Devices.


Plug & Print

The PrimeTest 250+ can be used in conjunction with the Test n Tag Pro serial printer to further speed up the process of testing and labelling. The Test n Tag Pro label rolls provide over 400 high quality labels allowing you to produce professional, low cost inspection and test labels at the press of a button.


Simple Data Management

PrimeTest 250+ has an internal memory capable of storing up to 999 appliance test records and the single key save allows records to be stored at the press of a button.

Transfer data via a USB cable directly to a PC using the supplied datalogger software. The data downloads in the industry standard CSV format and can be read directly into spreadsheets or other PC applications.

For those who require professional reports and certificates as well as complete data traceability and integrity, the downloaded data is also fully compatible with Seaward’s PATGuard 3 Elite software; which allows complete test records to be easily managed on a PC – offering total peace of mind and quicker, easier management of scheduling inspections and tests.


Accurate and Reliable Earth Continuity Testing

Some test instruments struggle to provide accurate and consistent earth continuity readings but thanks to a unique ‘zap circuit’ from Seaward, erratic earth continuity readings on those difficult to test appliances are a thing of the past.

Simply clip on and press to test. No more pressing or scraping with test probes or clips on chrome plated kitchen appliances trying to obtain a satisfactory reading – and no more surface damage on the appliance under test. Go to for more information


Which Seaward Primetest 250 Model?

The PrimeTest 250+ is compatible with a range of accessories which help to speed up the process of asset recognition, testing and labelling. 

Model Number PT250+ Pro Bundle 403A955 PT250+ Pro Bundle with Software 403A957 PT250+ Elements Bundle 403A956
Test n Tag Pro Printer  
4 x Test n Tag Pro Printer Label Rolls  
PrimeTest Checkbox
PATBag Carrying Case
Cloverleaf Adapter
PAT Training DVD
Guide to PAT Testing
1 Year License for Seaward's PATGuard Elite Software    
PATGuard Elements Software    
1000 x Passed PAT Testing Labels    
100 x Failed PAT Testing Labels    
PAT Testing Logbook    

Seaward PrimeTest 250+ Technical Specifications

Earth continuity

Output Current 200mA minimum into 2ohm
Test Voltage (o/c) 9V DC nominal
Test Duration (Class I Test) 2s nominal
Display Range 0.01ohm to 19.99ohm
Pass Value (Class I Test) 0.2ohm


Insulation resistance

Test Voltage 250/500VDC @1mA nominal, < 2mA (s/c)
Test Duration (Class I or II) 2s
Display Range 0.01Mohm to 19.99Mohm
Pass Value 1.0MOhm Class I
  2.0MOhm Class II

Equivalent leakage

Test Voltage 40V Nominal AC 50Hz Open Circuit
Test Duration 2s
Display Range 0.1mA to 19.99mA
Pass Value 0.75mA/3.5mA (user selectable with 0.75mA as default)/0.25mA CL II

IEC lead test

Test voltage 5V DC nominal
Test Duration Time for test (2s max)
Test Live/Neutral Checks for o/c, s/c and crossed

Protective Conductor Current

Test Voltage Supply Voltage, max current 13A
Test Duration 120s maximum
Display Range 0.15mA to 9.99mA
Pass Value 0.75mA/3.5mA (user selectable with 0.75mA as default)

Touch current

Test Voltage Supply Voltage, max current 13A
Test Duration 120s maximum
Display Range 0.10mA to 3.50mA
Pass Value 0.25mA

3 phase differential leakage current

*Requires 3 phase adaptor accessory  
Test Voltage 3 phase supply voltage
Test Duration Continuous measurement
Display Range 0.10 mA to 9.99 mA
Pass Value 0.75mA/3.5mA (user selectable with 0.75mA as default)

RCD trip time

Test Voltage Mains supply voltage
Test Current 30mA/150mA rms sinusoida
Test Current Phase 0°/180° auto switched on alternate tests
Measuring Range 0ms – 500ms
Pass Value 200ms


Power socket check

Input voltage range 225 – 254VAC max current 13A UK
Indicates configuration of voltage potential: Line potential phase to earth
Line potential phase to neutral
Line potential neutral to earth



Memory size: 999 test records
Power source: 6 x AA batteries
Part number: 403A910

Standard Delivery 3-5 Day Delivery – UK
£2.95 for all all orders under £40.00 (exld vat). Sent by Royal Mail Tracked, delivered/posted within 3-5 working days from the date of your order, subject to availability.

Standard Free Delivery 3-5 Day Delivery – UK Mainland only - Zone A & B
Included in the price for all orders over £40.00 (exld vat). Sent using FedEx, delivered within 3-5 working days from the date of your order, subject to availability.

Express DPD Delivery 1-2 Day Delivery – UK Mainland only - Zone A & B
£4.50 select at the checkout. Sent using DPD on their Award Winning “Predict” Service with these great key benefits:

  • You are given a one hour delivery window. (no more waiting in all day for your parcel)
  • You are notified by text or e-mail on your parcels progress.
  • Change of plan? You can easily use the text or e-mail to rearrange your delivery.
  • Notifications on your parcel up to 15 minutes before delivery.

Orders must be placed before 3pm for next day delivery and a mobile number supplied, subject to availability.

Next Day Delivery – UK Mainland only - Zone A & B
£8.00 select at the checkout. Sent using FedEx, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zone A & B
£15.00 select at the checkout. Sent using FedEx, orders must be placed before 3pm for Saturday delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions: 

  • Scotland, Isle of Wight & Isles of Scilly - £6.00  
  • Scottish Highlands and Northern Ireland - £12.00  Zone C
  • Scottish Islands, Isle of Man and Channel Islands - £14.00  Zone D
  • Southern Island - £15.00  Zone E


 International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at

 Zone 1:

  • France, Germany, Belgium, Netherlands, Luxembourg. £20.00 per parcel

Zone 2:

  • Austria, Denmark. £22.00 per parcel
  • Liechtenstein, Switzerland £47.00 per parcel (added cost for custom clearance surcharge)

Zone 3:

  • Czech Republic, Italy, Slovakia, Spain. £28.00 per parcel

Zone 4:

  • Estonia, Finland, Hungary, Poland, Portugal, Slovenia, Sweden. £50.00 per parcel

Zone 5:

  • Bulgaria, Croatia, Greece (incl islands) Latvia, Lithuania, Romania. £60.00 per parcel

Bosnia-Herzegovina, Iceland, Norway, Serbia. £85.00 per (added cost for custom clearance surcharge)

If no shipping option is available to your selected country.  Please call us on +44 (0) 1603 406 148 to purchase your items.