Seaward PrimeTest 250 PAT Tester

Seaward Brand: Seaward

The handheld PrimeTest 250 PAT tester features all of the electrical safety tests required to meet the IEE Code of Practice including RCD trip time, protective conductor current and touch current. The unit also includes a 250V DC insulation test suitable for testing sensitive electrical appliances and surge protected leads, and can test 3 phase industrial plant and equipment.

Connecting this battery-powered tester to a mains supply allows protective conductor current or touch current measurements to be made automatically. All electrical safety tests are carried out against pre-set limits with measured test result values and clear PASS/FAIL indication on a large display.

Click here to see the tester in action.
  • Comprehensive handheld Manual Seaward PAT tester
  • Intuitive and easy to use
  • Automatic mains detection & leakage test selection
  • 3 phase leakage testing (Adaptor required for 3 phase testing)
  • Ideal for: in-house safety testing engineers, electrical contractors, service and maintenance engineers, facility managers, hotels, leisure
  • Contents: Seaward Primetest 250 PAT tester, IEC test leads, mains supply and carry case
Description Image Product Buy Pricing (Ex VAT) Type
Seaward 372A953 RCD Adaptor
Seaward 372A953 RCD Adaptor
Extended range
Order code: 90-4208
MPN: 372A953

Available to back orderBack-order availability date - 20/12/2025
1+ £117.08
Price per unit Ex VAT 		RCD adaptor
Seaward 305A950 Earth Lead (Probe & Clip)
Seaward 305A950 Earth Lead (Probe & Clip)
Extended range
Order code: 90-4212
MPN: 305A950

Available to back orderBack-order availability date - 20/12/2025
1+ £28.84
Price per unit Ex VAT 		Earth cable
Seaward 44B141 16A Mains Lead
Seaward 44B141 16A Mains Lead
Standard range
Order code: 90-4213
MPN: 44B141

4 in stock, despatched same dayAdditional quantity lead time 3 weeks
1+ £29.87
Price per unit Ex VAT 		Mains cable
Earth continuity
Output current200mA
Test voltage (o/c)9V DC nominal
Test duration (Class I Test)2s nominal
Display range0.01Ω to 19.99Ω
Pass value (Class I Test)0.2Ω
Insulation resistance
Test voltage250/500VDC @1mA nominal, <2mA (s/c)
Test duration (Class I or II)2s
Display range0.01MΩ to 19.99MΩ
Pass value1.0MΩ Class I
2.0MΩ Class II
Equivalent leakage
Test voltage40V Nominal AC 50Hz Open circuit
Test duration2s nominal
Display range0.1mA to 19.99mA
Pass value0.75mA CLI / 0.25mA CL II
IEC lead test
Test voltage5V DC nominal
Test durationTime for test (2s max)
TestLive/neutral checks for o/c, s/c and crossed
Protective conductor current
Test voltageSupply voltage, max current 13A
Test duration30s maximum
Display range0.15mA to 9.99mA
Pass value0.75mA/3.5mA (user selectable with 0.75mA as default)
Touch current
Test voltageSupply voltage, max current 13A
Test duration30s maximum
Display range0.10mA to 5.00mA
Pass value0.25mA
3 phase differential leakage current
Test voltage3 phase supply voltage
Test durationcontinuous measurement
Display range0.10mA to 9.99mA
Pass value3.5mA
RCD trip time
Test voltageMains supply voltage
Test current10mA / 30mA rms sinusoidal
Test current phase0° 180° auto switched on alternate tests
Measuring range0ms to 500ms
Pass value200ms
Power socket check
Input voltage range225 to 254V AC max current 13A UK
Measurement range50V to 250V


Trustpilot