Kyoritsu 3125a High Voltage Insulation Tester

The Kyoritsu 3125A is a digital, high voltage insulation resistance tester, that can test insulation resistance up to 5kV.

$2,123.00 inc. GST

UPC 4560187065835
SKU 3125a Category
Sparky Tools


Kyoritsu 3125A Digital High Voltage 5kV Insulation Tester

The Kyoritsu 3125A insulation resistance tester is easy to use featuring a great digital backlit display and also has the functionality to test both the dielectric absorption (DA) and polarization index (PI)ratio. Both AC and DC voltage can be measured by the Kyoritsu insulation resistance meter, between 30 and 600V.

The 3125A insulation resistance tests up to 1TΩ over 5 voltage ranges 250V, 500V, 1000V, 2500V and 5000V.  A filter function allows the Kyoritsu 3125A to obtain stable measurements by reducing noise interference in industrial environments and also, an indication of the output voltage and discharge voltage is displayed on the screen.



Kyoritsu is a world leading brand when it comes to electrical test and measurement. Kyoritsu offers an extensive range of high quality instruments from analogue/digital multimeters to high-end power quality analysers that are widely used and trusted by electricians, maintenance technicians and engineers.
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Additional information

Weight .8 kg
Dimensions 30 × 20 × 10 mm


Kyoritsu 3125A High Voltage Insulation Tester Specifications:

Insulation resistance:

RATED VOLTAGE 250V 500V 1000V 2500V 5000V
ACCURACY 0.0 – 100.0MΩ 0.0 – 99.9MΩ
80 – 1000M Ω
0.0 – 99.9MΩ
80 – 999MΩ
0.80 – 2.00G  Ω
 0.0 – 99.9MΩ
80 – 999MΩ
0.80 – 9.99GΩ
8.0 – 100.0GΩ
0.0 – 99.9MΩ
80 – 999MΩ
0.80 – 9.99GΩ
8.0 – 99.9GΩ
80 – 1000GΩ
±5%rdg±3dgt ±5%rdg±3dgt ±5%rdg±3dgt ±5%rdg±3dgt ±5%rdg±3dgt
(100GΩ or more)
ACCURACY ±10% -10 – +20% 0 – +20%
MONITOR ±10%rdg±20V

Voltage measurement

MEASURING RANGE AC: 30 – 600V (50/60Hz), DC: ±30 – ±600V
ACCURACY ±2%rdg±3dgt


APPLICABLE STANDARDS IEC 61010-1, 61010-2-030 CAT Ⅳ 300V / CAT Ⅲ 600V Pollution degree 2,
IEC 61010-031, IEC 61326-1, 2-2
POWER SOURCE DC12V : LR14/R14 × 8pcs
DIMENSIONS 177 (L) × 226 (W) × 100 (D) mm
300 (L) × 315 (W) × 125 (D) mm (Hard case)
WEIGHT 3125A: 1.9kg approx. (including batteries)
4kg approx. (including accessories)
INCLUDED ACCESSORIES 7165A (Line probe: 3m), 7264 (Earth cord: 3m), 7265 (Guard cord: 3m),
8019 (Hook type prod), 9180 (3025A Hard case), 9181 (3125A Hard case),
LR14 (Alkaline battery size C) × 8, Instruction manual
OPTIONAL ACCESSORIES 7168A (Line probe with alligator clip: 3m),
7253 (Longer line probe with alligator clip: 15m),
8302 (Adaptor for recorder)
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