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PAT120 PAT Tester

Megger PAT120 PAT Tester offers Class I, Class II & power / extension lead testing with fixed pass limits. Insulation testing at 500 V (default) or 250 V can be selected safe for surge-protected & IT equipment

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Megger PAT120 PAT Tester

PAT120 is the toughest, simplest and most economical PAT tester available.

Organising tests into three test groups, Class I, Class II and Power and Extension leads, enables the correct sequence of tests to be performed automatically without the user’s intervention, keeping testing simple and reducing test times.

Pass limits are fixed; the default insulation test is 500 V dc but when testing IT or surge protected equipment 250 V dc is available.

To make testing easier, the connections required for each test are shown in the lid of the Megger PAT120. Another key difference from ordinary testers is the detachable neck strap that makes testing simpler when there is no convenient surface on which to work and makes the tester easier to carry with the test leads, report books etc.

Test groups enable the correct sequence of tests to be performed automatically with minimum intervention by the user. This keeps testing simple, reduces test times to a minimum and helps to prevent testing errors.

Battery powered operation makes the Megger PAT120 perfect for those locations where an electrical supply is not available, inconvenient or unsafe, especially building sites and warehouses. Megger PAT120 conforms to all UK and European requirements for electrical safety testing.

Megger PAT120 Key Features:

  • Testing portable and fixed electrical equipment
    • with test groups available for Class I, Class II and Extension/Power leads
  • Tough, rubber armour with built-in front cover and hardened scratch-proof display
  • Fixed PASS limits
  • Simple tick or cross, pass or fail indication plus measurement
  • Safe 250 V insulation and leakage test for surge-protected and IT equipment
  • Substitute leakage testing
  • Insulation testing at 500 V (default) or 250 V can be selected at the start of the test.
  • Leakage testing uses a “Substitute Leakage” also known as the “Alternative” method to remove the need for a mains supply during test
  • Battery powered with rechargeable options

▶ Video: Megger PAT120 Manual PAT Tester

Video thumbnail for the Megger PAT120 Manual PAT Tester

What comes with the Megger PAT120?

  • PAT120 Manual PAT Tester
  • Extension lead adaptor
  • (1001-233) Continuity/earth bond lead
  • (1005-075) Carry case


Comparison Chart for: Megger PAT120 PAT Tester

Connector Interfaces
Mains test socketBS1363BS1363BS1363
Power supply
AA alkaline/NiMH
Rechargeable (PAT150R)
Protective Earth Resistance
250 V insulation
500 V insulation
Cable test
Live protective conductor current
Live touch current
Substitute leakage
Functional test (part of Live leakage test)
10 mA PRCD
30 mA PRCD
SELV voltage
Lead resistance nulling
Function keys
Class 1
Class 2
Single test
LCD Backlight
Standard accessories
4mm plug lead probe + croc clip122
Extension lead adaptorBS1363BS1363BS1363
AC charger adaptor
Mains supply cord
Carry case
FREE calibration certificate


Accessory Code Description Price (Ex VAT)
1000-971 Roll of 1000 PASS Test Labels £35.00 ADD
1001-233 Continuity / Earth Bond lead + Probe (Black) £47.00 ADD
1001-234 Extension Lead Adaptor 230V UK 13A £25.00 ADD
1001-299 PAT Test Certificate Book £37.00 ADD
1003-436 Battery Charger Kit 15V £69.00 ADD
1005-075 Carry Case PAT100 Series £37.00 ADD
1005-076 Carry Strap £17.00 ADD
1005-077 SELV Test Lead £43.00 ADD
1005-739 PAT 100 Starter Acccessory Kit £95.00 ADD
6231-601 UK Mains Plug Leadset £24.00 ADD