Insulation Tester | Voltage Tester | RS
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    Insulation Testers

    Insulation testers are electrical measurement test tools used for preventative or predictive maintenance programs. Also known as megohmmeters they are designed to identify potential equipment failures before they occur. Insulation resistance testers are perfect for testing a wide range of high voltage equipment including switchgear, motors, generators and cables.

    RS offer a range of high-quality electrical test tools from leading brands including Megger, Fluke, Chauvin Arnoux, Keysight Technologies, Metrohm, FLIR and of course RS PRO.

    We also offer an in-house calibration service. See here for more details calibration services

    Insulation tester types

    Insulation testers are handheld devices but can be portable with a handle or bench mounted. Testers usually have an LCD or digital display, but some have the more traditional analogue needle such as the Megger MIT310A.

    How do insulation resistance testers work?

    Testing the integrity of insulation requires measuring its resistance to current flow across it. Testers use high voltage low current DC charge to measure the resistance. A high level of resistance means that very little current is escaping through the insulation. Conversely, a low level of resistance indicates a significant amount of current may be leaking through and along the insulation.

    What is the purpose of insulation testing?

    Ideally, all the electrical current sent along a conductive wire should reach its intended destination. However, you do find that some of it is lost along the way due to various reasons. Wires are insulated with a resistant sheathing to contain the conductivity of the copper or aluminium core, but even with this insulation in place, some of the current still manages to escape. The electricity that leaks out can be detrimental to electrical circuits and machinery.

    Testing can help you determine whether the insulation is performing at an effective and safe level. Excessive heat or cold, moisture, vibration, dirt, oil and corrosive vapours can all contribute to deterioration therefore routine testing can identify problems before they result in injury or equipment failure.

    Insulation testers provide noise-free, reliable results. They are safe and easy to use and the ideal solution for troubleshooting, commissioning and preventative maintenance applications.

    180 Producten voor Insulation Testers

    Fluke
    1507
    Insulation Tester
    50V
    1000V
    10GΩ
    LCD
    -
    200mA
    1000 Insulation Tests
    AA
    Battery
    -20°C
    +50°C
    CAT III 600 V, CAT IV 600V
    CAT III, CAT IV
    600V
    -
    -
    RS PRO
    RS5505
    Insulation Tester
    125V
    1000V
    4000MΩ
    LCD
    RSCAL
    1mA
    -
    AA
    Battery
    0°C
    +40°C
    CAT III 1000V
    CAT III
    1000V
    -
    -
    Megger
    MIT410 2
    Insulation Tester
    10V
    1000V
    200GΩ
    Analogue, Dual Digital
    -
    205mA
    2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s
    Alkaline
    Battery
    -20°C
    +55°C
    CAT IV 600V
    CAT IV
    600V
    -
    -
    Megger
    MIT400 2
    Insulation Tester
    10V
    1000V
    200GΩ
    Analogue, Dual Digital
    -
    205mA
    2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s
    Alkaline
    Battery
    -20°C
    +55°C
    CAT IV 600V
    CAT IV
    600V
    -
    -
    Megger
    MIT220
    Insulation & Continuity Tester
    250V
    500V dc
    999MΩ
    LCD
    -
    200mA
    3000 5-Second Tests
    AA
    Battery
    -10°C
    +55°C
    CAT III 300V
    CAT III
    300V
    -
    -
    RS PRO
    RS5500
    Insulation Tester
    250V
    1000V
    2000MΩ
    LCD
    UKAS
    ≤200mA
    -
    AA
    Battery
    0°C
    +40°C
    CAT III 1000V
    CAT III
    1000V
    -
    -
    Fluke
    1535
    Insulation Tester
    250V
    2500V
    -
    LCD
    -
    -
    -
    -
    -
    -
    -
    CAT IV 600V
    -
    -
    -
    -
    Extech
    MG310
    Insulation Tester
    250V
    1000V
    5.5GΩ
    Digital
    -
    -
    -
    AA
    -
    -
    -
    -
    -
    -
    -
    -
    Fluke
    1587 FC
    Insulation Tester
    50V
    1000V
    2GΩ
    Backlit LCD
    -
    1mA
    1000 h
    AA, NEDA 15A
    Battery
    -20°C
    +50°C
    CAT III 1000 V, CAT IV 600V
    CAT III, CAT IV
    600 V, 1000 V
    -
    -
    Fluke
    1503
    Insulation Tester
    500V
    1000V
    2GΩ
    Backlit LCD
    -
    200mA
    1000 Insulation Tests
    AA
    Battery
    -20°C
    +50°C
    CAT III 600 V, CAT IV 600V
    CAT III, CAT IV
    600V
    -
    -
    Chauvin Arnoux
    CA 6524
    Insulation & Continuity Tester
    50V
    1000V
    200GΩ
    Backlit LCD
    -
    200 mA and 20mA
    1500 5s insulation Measurements at 1000V, 3000 5s continuity Measurements
    LR06 AA
    Battery
    -20°C
    +55°C
    CAT IV 600V
    CAT IV
    600V
    -
    -
    Megger
    MIT2500
    Insulation Tester
    50V
    2500V
    200GΩ
    Digital
    -
    20mA
    3000 5-Second Tests
    AA
    Battery
    -10°C
    +55°C
    CAT IV 600 VV
    CAT IV
    600V
    -
    -
    Fluke
    1550C
    Insulation Tester
    250V
    5000V
    1TΩ
    LCD
    -
    1 nA → 2 mA
    750 Tests
    Rechargeable Lead Acid (Yuasa NP2.8-12)
    Battery
    -20°C
    +50°C
    CAT III 1000 V, CAT IV 600V
    CAT III, CAT IV
    600 V, 1000 V
    -
    -
    UNI-T
    UT511
    Insulation Resistance Tester
    -
    1000V
    10GΩ
    LCD
    -
    -
    -
    -
    -
    -
    -
    CAT III 690 V, CAT IV 600V
    -
    -
    -
    -
    Megger
    MIT1025
    Insulation Tester
    500V
    10000V
    20TΩ
    LCD
    -
    6mA
    4.5 h
    Li-ion
    Battery, Mains
    -20°C
    +50°C
    CAT IV 600V
    CAT IV
    600V
    -
    -
    Chauvin Arnoux
    CA 6536
    Insulation & Continuity Tester
    10V
    100V
    20GΩ
    Digital
    -
    200mA
    3000 Measurements, 6000 Measurements
    AA
    Battery
    -20°C
    +55°C
    CAT IV 600V
    CAT IV
    600V
    -
    -
    Fluke
    1555
    Insulation Tester
    250V
    10000V
    2TΩ
    LCD
    -
    1 nA → 2 mA
    750 Tests
    Rechargeable Lead Acid (Yuasa NP2.8-12)
    Battery
    -20°C
    +50°C
    CAT III 1000 V, CAT IV 600V
    CAT III, CAT IV
    1000 V, 600 V
    -
    -
    Facom
    BC.TGVEPF
    Insulation Tester
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Megger
    MIT320
    Insulation & Continuity Tester
    250V
    1000V dc
    999MΩ
    LCD
    -
    1mA
    5000 5-Second Tests
    AA
    Battery
    -10°C
    +60°C
    CAT III 600V
    CAT III
    600V
    -
    -
    Seaward Clare
    H103
    Hipot Tester
    250V
    5000 V ac, 6000V dc
    999.9MΩ
    LCD
    -
    0.1 → 40A
    -
    -
    Mains
    -
    -
    -
    -
    -
    -
    -
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