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.

SKUBrandImageAC FlashDC FlashInsulation ResistanceImpulse VoltageEarth BondLeakage CurrentPartial DischargeStockPrice
TOS9303-ClearanceSaleNewLow stockKikusuiImage of Telonic tos9303 front5kV / 100mA7.2kV / 100W0.001MΩ – 100GΩN/A3A – 42AN/AN/A1£5,289.00
£3,966.75
TOS9300KikusuiImage of Telonic tos9300 front5kV / 100mAN/A0.001MΩ – 100GΩN/AN/AN/AN/AOn Backorder£3,492.00
TOS9301Low stockKikusuiImage of Telonic tos9301 front5kV / 100mA7.2kV / 100W0.001MΩ – 100GΩN/AN/AN/AN/A1£4,192.00
TOS9301PDKikusuiImage of Telonic tos9301 front5kV / 100mA7.2kV / 100W0.001MΩ – 100GΩN/AN/AN/AYesOn Backorder£8,645.00
TOS9303KikusuiImage of Telonic tos9303 front5kV / 100mA7.2kV / 100W0.001MΩ – 100GΩN/A3A – 42AN/AN/A3£5,289.00
TOS9303LCKikusuiImage of Telonic tos9303lc front5kV / 100mA7.2kV / 100W0.001MΩ – 100GΩN/A3A – 42A1µA – 100mAN/AOn Backorder£7,254.00
TOS9311Low stockKikusuiImage of Kikusui tos9311 telonic uk10kV / 50mA10kV / 100W0.001MΩ – 100GΩN/AN/AN/AN/A1£7,092.00

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