1kV Insulation Tester

  •   Insulation testing to 1000 MΩ.
  •   Continuity testing at 200 mA down to 0.01 Ω.
  •   Live circuit warning (voltage display) and test inhibit.
  •   Digital/Analogue display.
  •   Alkaline or rechargeable batteries.
  •   –10°C to +55ºC operating temperature.
  •   CATIII 600 V.
  •   Conforms to EN61557-1.

The MIT200 series Insulation Testing Equipment will find applications in electrical contracting, both on domestic and industrial systems, as well as site maintenance and service departments.

The MIT200 series of insulation and continuity testers are ideal for testing transformers, motors, generators, switchgear, panel building, domestic appliances, power tools etc., as well as fixed electrical wiring systems.

Their small size and light weight make them ideal for those engineers that need to carry them for extended periods.

  •  Extremely easy to use.
  •  Tough rubber armoured case.
  •  Self contained protective cover.
  •  Live circuit warning.
  •  Weatherproof to IP54.
  •  Intelligent Safety System for protection.


Developed, after extensive customer research, specifically to meet the needs of today’s electrical contractors, the new MIT300 range of insulation and continuity testers from Megger is not only durable and easy to use, but also incorporates a comprehensive set of features designed to ensure operator safety, even under conditions of accidental misuse.

The range includes four models, ensuring an exact match for the needs of every user, all of which offer automatic discharge of the circuit after testing, audible and visual warning if the test probes are applied to a live circuit, and a test inhibit feature which operates automatically under live circuit conditions. The units also conform fully to IEC 61010-1 for use in Category III 600V applications, and provide all of the facilities needed to meet insulation testing requirements relating to the current edition of the IEE Wiring Regulations.

In line with other products in Megger’s comprehensive new contractor range, MIT300 insulation testers feature rugged construction, with an impact-resistant rubber-overmoulded case, and innovative circuitry which guarantees high accuracy combined with stability of calibration.

All instruments in the new range provide indication of insulation resistance up to 999Mohms, 200mA continuity testing, a fast-reacting continuity buzzer, and facilities for nulling the resistance of the test leads. The entry-level MIT300 offers insulation test voltages of 250V and 500V, while the remaining models allow testing at 250V, 500V and 1,000V.

In addition to the basic features, the mid-range MIT310 adds a default voltmeter function, while the MIT320 supplements these facilities with an a backlit display, illuminated range panel, insulation limit alarm, resistance measurement, and an adjustable threshold for the continuity buzzer. The MEGIT320 Insulation Testing Equipment is also supplied with a switched test probe to speed hands free testing.

An illuminated switched test probe is available as an optional extra for use with the MIT320.

The MIT310, MIT320 and MIT330 testers incorporate dual solid-state displays which simultaneously show the test results numerically, and in the form of a moving-arc bar graph that accurately simulates the operation of an analogue meter.

The MIT330 Insulation Testing Equipment additionally offers the facility to save test results to internal memory. Over 1000 result can be saved on site, and downloaded to a computer when convenient.

Data is stored in non-volatile memory, being retained when the instrument is switched off or batteries are exhausted.

A Job reference number can be selected for a range of results, allowing separate locations to be tested with the same tester and easily separated when downloaded.

A memory bar graph acts as a ‘Fuel Gauge’ showing how much memory has been used. Test results are downloaded to CSV (Coma Separated Variable) spreadsheets. If certificates or reports are required, the results can be downloaded directly into Megger Powersuite Professional with a range of features for creating professionally finished documentation.

  • CATIV 600V applications.
  •   Insulation testing to 1000V and to 200GΩ.
  •   TRMS and DC Voltage measurement.
  •   Continuity testing at 200mA down to 0.01Ω.
  •   Analogue and dual digital display.
  •   Insulation and continuity limit alarms.
  •   PI/DAR and Timer function.
  •   Test result storag.
  •   Bluetooth wireless data transfer.
  •   Free calibration certificate included.

The MIT400 series Insulation Testing Equipment of insulation and continuity tester offers those working in electrical engineering, the electrical supply industry and in maintenance, repair and servicing of industrial equipment and manufacturing processes a convenient test instrument.

It is also very useful for the checking of the electrical system in hybrid and electric vehicles. the safety and comfort of a modern purpose designed instrument.

A key feature of the design of the tester is its waisted profile making it easily held by operators with the smallest of hands, and it can be used right or left-handed, just as easily. As an added bonus it is supplied with a free calibration certificate included.

  • No scale multipliers.
  •  Multiple test voltages for spot and step voltage testing.
  •  Guard terminal to eliminate surface leakage current.

The MJ459 and MJ159 replace the BM12 and MJ10, respectively.

Four models are available for general purpose testing which include a low-voltage model.

All are portable, self-contained instruments designed to give rapid and accurate measurements.

Four of the models feature an analog display having four selectable test voltages of 100, 250, 500 and 1000 V dc, measuring insulation resistance up to 2000 MΩ and an ohm range to 5000 ohms. The other model has four test voltages of 50, 100, 250 and 500 V dc measuring insulation resistance up to 1000 MΩ.

5kV, 10kV, 15kV Insulation Tester

  •   Measures up to 10 TΩ.
  •   Selectable test voltage from 250 to 5000 V.
  •   PI, DAR, DD test.
  •   Improved productivity – operate from line power/mains if battery dead.
  •   Li ion battery – extended capacity, rapid charge.
  •   CATIV 600 V safety rating.

Offering CAT IV, the MIT515 is the simplest of Megger’s new range of small light 5 kV insulation resistance testers for the testing and maintenance of high voltage electrical equipment. Enclosed in a tough case it is both smaller and lighter than its predecessor making it even easier to carry and store.

Now equipped with lithium ion fast rechargeable batteries, the instrument has a large, clear, easy to read, display making it equally suitable for use in both bright sunlight and poorly lit environments. Information displayed includes resistance, voltage, leakage current, capacitance, battery status and time constant. In addition, the elapsed time of the test is displayed constantly removing the need for separate timer.


  • Proven ability to make accurate stable measurements in noisy environments such as 765 kV substations.
  •  Rapid charge of capacitive loads such as HV power cables.
  •  Additional safety in high energy locations with remote operation.
  •  Always ready to test with fast charge Li-ion battery or a.c. source operation.
  •  Designed to survive harsh environments.

S1-568 5 kV insulation resistance testers has been designed, specified and tested to meet the stringent requirements of power utilities in the 21st century. In addition to being tough, high performance insulation testers the S1-568 Megger offers the ability to perform accurate insulation resistance measurements in extreme, high noise environments, rapid charging of cable capacitance, and even remote operation for both convenience and safety.

For service companies the S1-568 represents an excellent choice with its flexibility and future proofing capability. Quite simply the Megger S1-Series is designed to work wherever you work.

1 T Ω, 1.4 Ma, 5 kV digital insulation tester with digital and analogue display.
• Five test ranges; 250V, 500V, 1000V, 2500V and 5000V.
• Insulation (InS), Polarization Index (PI) and variable timed test (t) modes.
• Selectable DC or AC (including frequency) voltmeter functions.
• Guard terminal to shunt surface leakage currents.
• CATIII 600 V safety rating.

Megger BM5200 Insulation Testing Equipment is a battery powered insulation tester with digital and analogue arc display, designed for high voltage insulation resistance testing in the maintenance and servicing of cables, rotating plant machinery, transformers, switchgear and industrial applications.

DC insulation tests are performed at 250 V, 500 V, 1000 V, 2500 V, 5000 V. Insulation resistance measuring range is 100 k Ω to 1000 G Ω. Automatic discharge for capacitive circuits under test is provided and decaying voltage displayed.

The guard terminal can be used to minimize the effects of surface leakage and hence erroneous measurements when carrying out insulation resistance tests.

  •  Four test voltages to 5 kV.
  •  BM15 battery powered. MJ15 hand cranked and optional battery powered.
  •  Voltage range to 600 V indicates auto discharge.
  •  Pass/fail overlays for rapid testing.

The BM15 and MJ15 Insulation Testing Equipment are compact 5kV insulation testers. They are very simple to use and provide a quick and accurate reading of insulation resistance. The instruments use an analog display with a maximum reading of 20 GΩ.