Description

At Mohammad Mahdi Electronics, we understand the importance of reliable insulation testing in various industries. That’s why we offer the Hioki IR4056-21 Insulation Tester, a high-accuracy and compact device designed to meet your testing needs.

The Hioki IR4056-21 features a wide measuring range from 0.05 MΩ to 100 MΩ, making it suitable for various applications. Its high accuracy of ±2% rdg. ±2 dgt. ensures reliable results, while its compact and lightweight design makes it easy to handle.

Hioki IR4056-21 Key Features

The Hioki IR4056-21 insulation tester boasts a range of features that make it an ideal choice for professionals. These include:

Rated output voltage: 50 V DC
Effective maximum indicated value: 100 MΩ
Accuracy 1st effective measuring range MΩ: ±2 % rdg. ±2 dgt.
Lower limit resistance: 0.05 MΩ
Overload protection: 600 V AC (10s)
DC voltage range: 4.2 V (0.001 V resolution) to 600 V (1 V resolution), 4 ranges
AC voltage range: 420 V (0.1 V resolution) / 600 V (1 V resolution), 2 ranges, 50/60 Hz
Average rectifier: Low resistance range for checking the continuity of ground wiring
Display: Semi-transmissive FSTN LCD with back lighting, bar-graph indicator
Response time: Approx. 0.8 second for PASS/FAIL decision
Other functions: Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Drop proof, Auto power save

Who Needs the Hioki IR4056-21?

The Hioki IR4056-21 insulation tester is designed for professionals who require high-accuracy insulation testing in various industries. These include:

Electrical contractors

Industrial maintenance personnel

Quality control inspectors

Research and development teams

Other professionals who require reliable insulation testing

Hioki IR4056-21 Applications

The Hioki IR4056-21 insulation tester has a wide range of applications, including:

Insulation testing of electrical equipment

Verification of insulation resistance

Measurement of insulation capacitance

Testing of electrical safety

Other applications requiring high-accuracy insulation testing

Why Buy Hioki IR4056-21 from mme-ae?

Browse our insulation testers. Read more in our electrical safety standards guide.

At mme-ae, we offer the Hioki IR4056-21 insulation tester at competitive prices, along with excellent customer service and support. Our team of experts is always available to assist you with any questions or concerns you may have.

We also offer a range of accessories and spare parts for the Hioki IR4056-21, including test leads, neck straps, and instruction manuals.

Hioki IR4056-21 Specifications

Rated output voltage	50 V DC	125 V DC	250 V DC	500 V DC	1000 V DC
Effective maximum indicated value	100 MΩ	250 MΩ	500 MΩ	2000 MΩ	4000 MΩ
Accuracy 1st effective measuring range MΩ	±2 % rdg. ±2 dgt. 0.200 – 10.00	±2 % rdg. ±2 dgt. 0.200 – 25.0	±2 % rdg. ±2 dgt. 0.200 – 50.0	±2 % rdg. ±2 dgt. 0.200 – 500	±2 % rdg. ±2 dgt. 0.200 – 1000
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), 4 ranges, Accuracy: ±1.3 % rdg. ±4 dgt., Input resistance: 100 kΩ or higher
AC voltage range	420 V (0.1 V resolution) / 600 V (1 V resolution), 2 ranges, 50/60 Hz, Accuracy: ±2.3% rdg. ±8 dgt., Input resistance: 100 kΩ or higher, Average rectifier
Low resistance range	For checking the continuity of ground wiring, 10 Ω (0.01 Ω resolution) to 1000 Ω (1 Ω resolution), 3 ranges, Basic accuracy: ±3 % rdg. ±2 dgt., testing current 200 mA or more (at 6 Ω or less)
Display	Semi-transmissive FSTN LCD with back lighting, bar-graph indicator
Response time	Approx. 0.8 second for PASS/FAIL decision (based on in-house testing)
Other functions	Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Drop proof, Auto power save
Power supply	LR6 (AA) alkaline batteries ×4, Continuous use: 20 hours (Comparator off, backlight off, 500 V range, no load) Number of measurements: 1000 times (at 5 s ON, 25 s OFF cycle, insulation measurement of lower limit resistance value to maintain nominal output voltage)
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) (including batteries, excluding test leads)
Included accessories	[IR4056-20] Test lead L9787 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4 [IR4056-21] Test lead set with remote switch L9788-11 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4