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Martindale HPAT400 PAC Checker

Martindale Official Distributor
  • Earth bond continuity test, 500V insulation resistance test and fuse checks
  • Capable of testing Class I and Class II appliances as well as extension leads
  • Shows PASS/FAIL indications for the appliance under test

Optional Extras

In stock


The Martindale HPAT400 PAC Checker is a handy instrument for testing Class I appliances, Class II appliances and power leads for electrical equipment. It has inbuilt automatic test sequences that feature a 200mA continuity test, 500V insulation resistance test, and fuse test.

A clear PASS/FAIL indication is displayed for each test alongside an overall indication on the Martindale HPAT400’s clear digital screen. All the user needs to do to initiate a test is identify an appliance class, correctly connect the appliance, and then press the correct test sequence button.

The Martindale HPAT400 comes supplied with a test lead, crocodile clip, IEC adaptor lead, carry case and batteries. It is covered by a two-year warranty.

Martindale part number: MARHPAT400

Key Features

  • Earth bond testing
  • Insulation testing
  • Fuse checks
  • Indicates PASS or FAIL result
  • Works on Class I and Class II appliances plus leads
  • Battery life for 600 tests
  • Two-year warranty



  • Test voltage: 4V DC (into open circuit) Test current: 200mA DC (into short circuit)
  • Accuracy: ± 0.03Ω
  • Pass limits: Lead ≤ 0.20 Ω = PASS; Class I ≤ 0.20 Ω = PASS


  • Fixed voltage: >500V DC at 1mA (< 625V DC into open circuit)
  • Test current: 1.5mA (into short circuit)
  • Accuracy: ± 0.1MΩ
  • Pass limits: Lead: ≥ 1.0 MΩ; Class I: ≥ 1.0 MΩ; Class II: ≥ 2.0 MΩ


  • Test voltage: 4V DC (into open circuit)
  • Test current: 200mA DC (into short circuit)
  • Pass level: >2mA


  • Overload protection: 300V AC/DC

Supplied Accessories

  • Martindale HPAT400 PAC Checker
  • Instructions for Martindale HPAT400
  • Test Probe with crocodile clip (TL67)
  • 6 x Alkaline AA batteries
  • IEC Adaptor Lead (Ex332)
  • Zip carry case