Insulation Testers

While a Flash tester looks for a total collapse of insulation, these meters measure the actual quality of that insulation in Ohms. By applying a known DC voltage, they detect tiny leakage currents that indicate if insulation is degrading due to heat, moisture, or age, helping to predict potential failures before they become dangerous.

  • TOS5302 Front

    Kikusui TOS5302 AC Flash Tester / HiPot plus Insulation Resistance Tester 0-5kV(AC) 25-1000V(IR) AC 0-100mA (200mA S/C)

    £2,099.00

    2 in stock (can be backordered)

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • TOS7200 2

    Kikusui TOS7200 Electrical Safety Testers 25 to 1000V max 1milli A

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    Out of stock

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9300 Front

    Kikusui TOS9300 AC HiPot Tester with Insulation Resistance Test

    £3,492.00

    Available on back-order

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9301 Front

    Kikusui TOS9301 AC/DC HiPot Tester with Insulation Resistance Test

    £4,192.00

    2 in stock (can be backordered)

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9301 Front

    Kikusui TOS9301PD AC/DC HiPot Tester with Insulation Resistance and Partial Discharge Test

    £8,645.00

    Available on back-order

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9303 Front

    Kikusui TOS9303 AC/DC HiPot Tester with Insulation Resistance and Ground Bond Test

    £5,289.00

    2 in stock (can be backordered)

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9303LC Front

    Kikusui TOS9303LC AC/DC Hipot Tester with Insulation Resistance, Ground Bond and Leakage Current Test

    £7,254.00

    Available on back-order

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9303LC Front

    Kikusui TOS9303LC AC/DC Hipot Tester with Insulation Resistance, Ground Bond and Leakage Current Test Rental

    £348.00

    Available on back-order

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Kikusui TOS9311 Telonic UK

    Kikusui TOS9311 10kV AC/DC HiPot Tester / Insulation Resistance Tester

    £7,092.00

    2 in stock (can be backordered)

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • TOS5302 Front

    Rental Kikusui TOS5302 AC Flash Tester / HiPot plus Insulation Resistance Tester 0-5kV(AC) 25-1000V(IR) AC 0-100mA (200mA S/C)

    £140.00

    1 in stock

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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  • Telonic TOS9303 Front

    Rental Kikusui TOS9303 AC/DC HiPot Tester with Insulation Resistance and Ground Bond Test

    £293.00

    Out of stock

    Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)

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