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HIOKI Insulation Testers Maintenance

IR4052_img3L_16-9-2

Reliable insulation testing for motors, cables and PV systems

Designed for accurate insulation resistance measurement in installations, equipment testing, and maintenance, the lineup covers a wide range of test voltages, safety features, and functions — from high-voltage to quick field checks.

The IR5051 High Voltage Insulation Tester and IR4053-10 both support PV insulation testing under live conditions – making them ideal for solar installations in operation. For general-purpose testing and digital workflows, the IR4057-50 adds Bluetooth® connectivity for efficient data transfer in a compact format. The IR5050 enables flexible high-voltage testing up to 5 kV for industrial assets and larger systems. All models are CAT III or CAT IV rated depending on the application, ensuring compliance with safety standards and reliable performance in the field. Choose the right insulation tester that fits your application.

11 Products
IR4056 - Digital Portable Insulation Tester, 50 V to 1000 V, up to 4000 MΩ IR4056 - Digital Portable Insulation Tester, 50 V to 1000 V, up to 4000 MΩ
IR4056-20
IR4056 - Digital Portable Insulation Tester, 50 V to 1000 V, up to 4000 MΩ
Digital insulation tester, 5 test voltages from 50 V to 1000 V, insulation resistance measurement up to 4000 MΩ, PASS/FAIL judgment, 200 mA protective conductor (PE) testing, AC/DC voltage verification up to 600 V, battery-powered

Regular price: €248.00
IR4053 - Digital Insulation Tester with PVΩ Function, 50 V to 1000 V IR4053 - Digital Insulation Tester with PVΩ Function, 50 V to 1000 V
IR4053-10
IR4053 - Digital Insulation Tester with PVΩ Function, 50 V to 1000 V
Digital insulation tester with PVΩ function for measurements on live PV strings, 5 test voltages from 50 V to 1000 V, insulation resistance measurement up to 4000 MΩ, AC/DC voltage measurement up to 600 V, battery-powered

Regular price: €488.00
IR4057-50 - Digital Insulation Tester with Bar Graph, 50 V to 1000 V HIOKI IR4057-50 digital insulation tester bluetooth ready
IR4057-50
IR4057-50 - Digital Insulation Tester with Bar Graph, 50 V to 1000 V
Digital insulation tester with bar graph display, 5 test voltages from 50 V to 1000 V, insulation resistance up to 4000 MΩ, PASS/FAIL comparator, 200 mA protective conductor test, operating temperature from -25 °C to 65 °C, Bluetooth optional with Z3210

Regular price: €488.00
HIOKI IR4059 - Digital Insulation Tester with Bar Graph and Remote Switch, 50 V to 1000 V HIOKI IR4059 - Digital Insulation Tester with Bar Graph and Remote Switch, 50 V to 1000 V
IR4059
HIOKI IR4059 - Digital Insulation Tester with Bar Graph and Remote Switch, 50 V to 1000 V
Digital insulation tester with bar graph display, 5 test voltages from 50 V to 1000 V, insulation resistance up to 4000 MΩ, PASS/FAIL comparator, 200 mA protective conductor test, integrated remote switch in test lead, Bluetooth optional with Z3210

Regular price: €498.00
3490 - Analog Insulation Tester, 250 V to 1000 V, up to 4000 MOhm 3490 - Analog Insulation Tester, 250 V to 1000 V, up to 4000 MOhm
3490
3490 - Analog Insulation Tester, 250 V to 1000 V, up to 4000 MOhm
Analog insulation tester with needle display, 3 test voltages 250 V, 500 V and 1000 V, insulation resistance measurement up to 4000 MΩ, 200 mA protective conductor (PE) testing, AC voltage measurement up to 600 V, battery-powered

Regular price: €308.00
HIOKI IR5050 portable 5 kv high voltage insulation tester ip65 HIOKI IR5050 portable 5kv high voltage insulation tester with optical communication adapter DT4900
IR5050
IR5050 - Portable 5 kV high voltage insulation tester
Portable high voltage insulation tester, five test voltage ranges from 250 V to 5 kV, seven insulation resistance ranges from 10 MΩ to 10 TΩ, CAT III 2000 V, CAT IV 1000 V, IP65, optional Bluetooth communication

Regular price: €2,058.00
HIOKI IR5051 portable high voltage insulation tester with pv function five test voltage ranges 250v to 5kv HIOKI IR5051 portable high voltage insulation tester with pv function
IR5051
HIOKI IR5051 - Portable high voltage insulation tester with PV function
Portable high voltage insulation tester with dedicated PV function, insulation testing up to 5 kV and 10 TΩ, PV testing up to 2000 V even during power generation, IP65 rated, CAT III 2000 V, optional Bluetooth communication

Regular price: €2,168.00
HIOKI IR5051-90 portable high voltage pv insulation tester with bluetooth Z3210 seven insulation resistance ranges 10mohm to 10tohm HIOKI IR5051-90 portable high voltage pv insulation tester with bluetooth Z3210 front view
IR5051-90
IR5051-90 - Portable high voltage PV insulation tester with Z3210
Portable high voltage insulation tester with dedicated PV function and Bluetooth, insulation testing up to 5 kV and 10 TΩ, PV testing up to 2000 V even during power generation, IP65 rated, CAT III 2000 V

Regular price: €2,228.00
HIOKI IR4057-90 digital insulation tester 50v to 1000v bar graph with bluetooth HIOKI IR4057-90 digital insulation tester 50v to 1000v application
IR4057-90
HIOKI IR4057-90 Digital Insulation Tester with Bar Graph and Bluetooth, 50 V to 1000 V
Digital insulation tester with bar graph display and integrated Bluetooth, 5 test voltages from 50 V to 1000 V, insulation resistance up to 4000 MΩ, PASS/FAIL comparator, 200 mA protective conductor test, operating temperature from -25 °C to 65 °C

Regular price: €548.00
20
HIOKI IR4018 analog insulation tester HIOKI IR4018 analog insulation tester classic analog scale
IR4018-20
IR4018 - Analog Insulation Tester
Key SpecificationsInsulation resistance measurement (1000 V DC) up to 2000 MΩVoltage measurement up to 600 V AC Measurement category: CAT III 600 V Display: illuminated analog meterThe HIOKI IR4018-20 is a rugged analog insulation tester designed for reliable insulation resistance testing in electrical installations and equipment. With a 1000 V DC test voltage and a measurement range up to 2000 MΩ, it is particularly well suited for applications with higher insulation requirements. The easy-to-read illuminated analog meter enables quick and confident evaluation of insulation measurements, even in low-light environments. For added safety, the integrated live circuit indicator reliably warns when hazardous voltage is present. After testing, the automatic discharge function ensures safe discharge of the device under test. Built for demanding everyday use, the IR4018-20 is drop-proof (1 m onto concrete) and meets the requirements of CAT III 600 V. Its IP40 protection rating (excluding terminals) makes it well suited for typical maintenance work. In addition, the instrument features AC voltage measurement up to 600 V and a practical housing design that allows test leads to be stored quickly without disconnecting them. A wide range of optional accessories is available for the IR4018-20, including test pins, alligator clips, and additional connection adapters. Especially useful are the remote switch test lead (L9788-10) or the complete set including an additional black lead (L9788-11).

Sale price: €198.40 Regular price: €248.00
20
HIOKI IR4017 analog insulation tester ohmmeter function HIOKI IR4017 analog insulation tester 500 v test voltage range
IR4017-20
IR4017 - Analog Insulation Tester
Key SpecificationsInsulation resistance measurement (500 V DC) up to 1000 MΩ Voltage measurement up to 600 V ACMeasurement category: CAT III 600 V Display: illuminated analog meter The HIOKI IR4017-20 is a rugged analog insulation tester designed for fast and reliable insulation resistance testing in electrical installations and equipment. With a 500 V DC test voltage and a measurement range up to 1000 MΩ, it is ideal for maintenance, service, and safety inspections in the field. The easy-to-read illuminated analog meter enables quick and confident evaluation of insulation measurements, even in low-light environments. For added safety, the integrated live circuit indicator reliably warns when hazardous voltage is present. After testing, the automatic discharge function ensures safe discharge of the device under test. Built for demanding everyday use, the IR4017-20 is drop-proof (1 m onto concrete) and meets the requirements of CAT III 600 V. Its IP40 protection rating (excluding terminals) makes it well suited for typical maintenance work. In addition, the instrument features AC voltage measurement up to 600 V and a practical housing design that allows test leads to be stored quickly without disconnecting them.A wide range of optional accessories is available for the IR4017-20, including test pins, alligator clips, and additional connection adapters. Especially useful are the remote switch test lead (L9788-10) or the complete set including an additional black lead (L9788-11).

Sale price: €198.40 Regular price: €248.00