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Kyoritsu 2056R Digital AC/DC Clamp Meter
Kyoritsu 2056R Digital AC/DC Clamp Meter Original price was: AED 880.Current price is: AED 728. (excl.VAT)

Hioki IR-4056 Insulation Tester


  • 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ
  • Stable & medium-speed digital readings, 0.8 second response time of PASS/ FAIL decisions
  • Continuity check via 200 mA testing
  • Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles
(1 customer review)
SKU: 1135

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Hioki IR-4056 Insulation Tester

IR4056 Hioki’s megohmmeters feature all-in-one designs that include built-in rugged housings and test lead storage compartments. Labor time related to on-site insulation testing.

Hioki IR-4056-20 insulation tester provides an improved comparator function (comparative judgment) and notification of judgment results via sound and light, allowing operators to judge the results at a glance, leading to significant improvements in work efficiency.

The comparator compares measured values ​​with preset reference values ​​to make pass/fail decisions. With improved response performance, the Hioki ir-4056-20 provides an instant pass/fail decision when the test lead touches a target. for downloading hioki ir4056-20 pdf,hioki ir4056-21 manual,hioki megger manual click on the datasheet tab.

IR-4056 Features

  • 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ
  • Stable & medium-speed digital readings, 0.8 second response time of PASS/ FAIL decisions
  • Drop proof onto concrete from 1m (3.28 feet)
  • Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand (Also available in the IR-4056-21)
  • Continuity check via 200 mA testing
  • Built-in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles

Frequency Asked Questions

What is the difference between Megger and insulation tester?

An insulation tester performs the basic measurement function that a megger performs: it measures very high resistance values ​​by sending a high voltage signal to the object under test, and it often does much more; typically performs more functions, including more complex tests and recording measurements.

What is an insulation tester?

Insulation testers use a high voltage, low current DC load to measure resistance in motor cables and windings to identify leakage currents and faulty or damaged insulation that can lead to arcing faults, burned circuits, and the risk of electric shock or fire.

What insulation resistance reading is acceptable?

Insulation resistance should be approximately one megohm per 1000 volts of working voltage, with a minimum of one megohm. For example, a 2400-volt motor should have an insulation resistance of at least 2.4 megohms.



HIOKI IR-4056 Specifications

  • Effective maximum indicated value(250 V DC): 500 MΩ / Accuracy: ±2% rdg
  • Lower limit resistance(250 V DC): 0.25 MΩ
  • Overload protection(250 V DC): 600 V AC (10 s)
  • DC voltage range: 4.2 V to 600 V, 4 ranges / Accuracy: ±1.3% rdg
  • AC voltage range: 420 V, 2 ranges / Accuracy: ±2.3% rdg
  • Power supply: AA alkaline batteries (LR6) ×4
  • Dimensions and mass: 159 mm (6.26 in) W × 177 mm (6.97 in) H× 53 mm (2.09 in) D, 600 g
1 review

1 review for Hioki IR-4056 Insulation Tester

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  1. Nicholas

    delivery on time, as I expected

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Hioki is a renowned Japanese brand known for its expertise in developing and manufacturing electrical measuring instruments. The company, Hioki E.E. Corporation, was established in 1935, and since then, it has committed itself to providing innovative solutions in the field of electrical measurement.

Hioki's product range is extensive, including devices such as digital multimeters, clamp meters, power meters, and oscilloscopes. These instruments are vital for various applications in research and development, maintenance, and production testing across industries like electronics, energy, and automotive. One of the key strengths of Hioki is its focus on precision and reliability, traits that are crucial in measurement instruments. Hioki’s products are designed to offer accuracy and durability, which make them preferred choices among professionals worldwide.

Moreover, Hioki emphasizes technological innovation and quality. The company invests significantly in research and development to keep up with evolving technological trends and to ensure their products meet the highest standards. This commitment to quality is reflected in their adherence to international certifications and standards. Hioki also values environmental sustainability, integrating eco-friendly practices in their operations and product designs. This includes efforts to reduce the environmental impact of their manufacturing processes and to design products that are energy efficient.

DATA sheet

Data Sheet


Technical Specifications of the Measurement Device

Feature 50 V DC 125 V DC 250 V DC 500 V DC 1000 V DC
Rated Output Voltage See headings
Effective Maximum Indicated Value 100 MΩ 250 MΩ 500 MΩ 2000 MΩ 4000 MΩ
Accuracy (±2 % rdg. ±2 dgt.) 0.200 – 10.00 MΩ 0.200 – 25.0 MΩ 0.200 – 50.0 MΩ 0.200 – 500 MΩ 0.200 – 1000 MΩ
Lower Limit Resistance 0.05 MΩ 0.125 MΩ 0.25 MΩ 0.5 MΩ 1 MΩ
Overload Protection 600 V AC (10s) 660 V AC (10s)
DC Voltage Range 4.2 V (0.001 V resolution) to 600 V (1 V resolution), Accuracy: ±1.3% rdg. ±4 dgt.
AC Voltage Range 420 V (0.1 V resolution) / 600 V (1 V resolution), 50/60 Hz, Accuracy: ±2.3% rdg. ±8 dgt.
Low Resistance Range 10 Ω (0.01 Ω resolution) to 1000 Ω (1 Ω resolution), Basic accuracy: ±3% rdg. ±2 dgt.
Other Functions Continuity: Buzzer sounds at 50 Ω ±40 Ω or less, Data hold, Auto power save, Drop-proof from height of 1 meter, etc.
Display Semi-transmissive FSTN LCD with backlighting, bar-graph indicator
Power Supply LR6 (AA) alkaline batteries ×4, Continuous use: 20 hours
Dimensions and Mass 159 mm (6.26 in) W × 177 mm (6.97 in) H × 53 mm (2.09 in) D, 600 g (21.2 oz)
Included Accessories Test lead L9787 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4