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Kewtech KEW3125A High Voltage Insulation Tester (5kV)

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Introducing the Kewtech KEW3125A, the UK's smallest high voltage insulation tester!

Portable and lightweight for on-site use, the KEW3125A gives high voltage technicians and professionals, quick easy access to insulation resistance measurements with reliable, accurate results. This meter is ideal for performing cable and motor diagnostics, as well for performing stable measurements in high voltage substations.

The Kewtech KEW3125A has selectable test voltages of 500, 1000, 2500 and 5000V (5kV) and can perform insulation resistance measurements up to 1TΩ. A built-in diagnostics function can be used to perform dielectric absorption ratio (DAR) and polarisation index (PI) tests and a timed testing function is also available.

Weighing just 1.9kg (with the battery) and measuring just 177 x 226 x 100mm (L x W x D), the KEW3125A insulation resistance meter is easy to take from site to site. If you're fed up of heavier testers and looking for a lightweight solution that does everything you need, the KEW3125A is an excellent choice.

There's many extra benefits to the KEW3125A insulation resistance tester, including a lock down test button, indication of output/discharge voltages, automatic discharge after testing, a voltage output warning system and a filter function to remove electrical noise, ensuring stable measurements at all times.

Kewtech KEW3125A High Voltage Insulation Tester Key Features

  • Compact and lightweight high voltage insulation tester - the UK's smallest unit, weighing just 1.9kg
  • Measure insulation resistance up to 1TΩ
  • Selectable test voltages of 500V, 1000V (1kV), 2500V (2.5kV) and 5000V (5kV)
  • Short circuit current of up to 1.5mA
  • Bargraph indication and digital readout
  • Guard terminal eliminates leakage current for more accurate testing
  • Polarisation index (PI) and dielectric absorption ratio (DAR) functions
  • Timer measurement function
  • Indication of output and discharge voltages
  • Lock down test button for completely hands-free testing
  • Automatic discharge after testing to help keep you safe
  • Voltage output warning system
  • Filter function reduces electrical noise interface, ensuring stable measurements (ideal for HV substations)
  • Backlit LCD scren for use in a wide variety of different lighting conditions
  • Automatic power off when left idle to help save battery life
  • Battery check function
  • Complies to IEC61010-1, CAT IV 300V and CAT III 600V

What's Included?

  • Kewtech KEW3125A HV Insulation Tester
  • ACC7165A Line Probe
  • ACC7264 Earth Probe
  • ACC7265 Guard Probe
  • ACC8019 Hook Probe
  • Carrying Case
  • Batteries
  • Instruction Manual
Accessories related to this product:
Part CodeKEW3125A

Kewtech KEW3125 Technical Specifications

Range Insulation Resistance  Voltage Measurement 
500V 1000V 2500V  5000V  AC/DC V
 Measuring Range  0.0 ~ 99.9MΩ
100 ~ 999MΩ
0.0 ~ 99.9MΩ
100 ~ 999MΩ
1.0 ~ 1.99GΩ
0.0 ~ 99.9MΩ
100 ~ 999MΩ
1.0 ~ 9.99GΩ
10.0 ~ 99.9GΩ
0.0 ~ 99.9MΩ
100 ~ 999MΩ
1.0 ~ 9.99GΩ
10.0 ~ 99.9GΩ
100 ~ 1000GΩ
30 ~ 600V
Accuracy +5%rdg ± 3dgt +5%rdg ± 3dgt +5%rdg ± 3dgt +5%rdg ± 3dgt
±20% (100GΩ
or more)
+2%rdg ± 3dgt
Short Circuit Current 1.3mA - - - -
Rated Test Current 1mA ~ 1.2mA 1mA ~ 1.2mA 1mA ~ 1.2mA 1mA ~ 1.2mA -
Open Circuit
500V DC +
30% - 0%
1000V DC +
20% - 0%
2500V DC +
20% - 0%
5000V DC +
20% - 0%
Maximum Display 999 counts (1000 counts only at 1000GΩ ) 630 Counts
Current Consumption About 1000mA (during measurement) 25mA Approx
Safety Standard IEC 61010-1 CAT III 600V Pollution Degree 2
Power Supply DC 12V: R14 x 8
Dimensions 205(L) x 152(W) x 94(D)mm
Weight 1.8kg approx.
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