Kewtech KEW3125A High Voltage Insulation Tester

Kewtech Corporation

Kewtech Approved distributor.

The KEW3125A is a high voltage insulation resistance tester with 5-ranges for measuring insulation resistance up to 5000V.

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£ 701.22 rrp £ 899.00

save 22%

(£ 841.46 inc VAT.)

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The UK's smallest high voltage 5KV tester with great specifications and quality at a low price! The KEW3125A can do spot checks and time related tests.


Insulation Resistance up to 1TΩ.
Short-Circuit current up to 1.5mA.
Wide Test Volatage from 250V to 5000V.
Bar graph indication.
Diagnostics function of PI and DAR.
Timer measurement function.
Indication of output and discharge voltages.
Lock down test button for hands-free testing.
Voltage output warning system.
Filte function reduces noise interference for obtaining stable measurements.
Back light.
Auto power off and Battery check.
Complies to IEC61010-1 CAT IV 300V / CAT III 600V.

KEW3125A Specifications:

  • Insulation ranges: 250V, 500V, 1000V, 2500V & 5000V.
  • Short circuit current: 1.5mA.
  • Accuracy: ±5% rdg ±3 dgt.
  • Display: Liquid crystal display.
  • Overrange indication: “OL”mark  appears  on  insulation resistance range.
  • Power source: LR14 (Alkaline battery size C) x 8pcs.
  • Low battery warning: Battery symbol (in 4 levels).
  • Dimensions (instrument): 177(L) x 226(W) x 100(D) mm.
  • Weight: 4kg approx (including accessories).
  • KEW3125A Warranty: One year.


Includes: KEW3125A 5kV tester, ACC7165A Line probe, ACC7264 Earth probe, ACC7265 Guard probe, ACC8019 Hook probe, Carry case, Batteries, Instruction Manual.

Ins Resistance Up to 1TΩ
Test Voltages 500, 1000, 2500 & 5000V

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Kewtech KEW3125A High Voltage Insulation Tester