Insulation Testers

Insulation testers are electrical measurement test tools used for preventative or predictive maintenance programs. Also known as megohmmeters they are designed to identify potential equipment failures before they occur. Insulation resistance testers are perfect for testing a wide range of high voltage equipment including switchgear, motors, generators and cables.

RS Components offer a range of high-quality electrical test tools from leading brands including Megger, Fluke, Chauvin Arnoux, Keysight Technologies, Metrohm, FLIR and of course RS PRO.

We also offer an in-house calibration service. See here for more details calibration services

Insulation tester types

Insulation testers are handheld devices but can be portable with a handle or bench mounted. Testers usually have an LCD or digital display, but some have the more traditional analogue needle such as the Megger MIT310A.

How do insulation resistance testers work?

Testing the integrity of insulation requires measuring its resistance to current flow across it. Testers use high voltage low current DC charge to measure the resistance. A high level of resistance means that very little current is escaping through the insulation. Conversely, a low level of resistance indicates a significant amount of current may be leaking through and along the insulation.

What is the purpose of insulation testing?

Ideally, all the electrical current sent along a conductive wire should reach its intended destination. However, you do find that some of it is lost along the way due to various reasons. Wires are insulated with a resistant sheathing to contain the conductivity of the copper or aluminium core, but even with this insulation in place, some of the current still manages to escape. The electricity that leaks out can be detrimental to electrical circuits and machinery.

Testing can help you determine whether the insulation is performing at an effective and safe level. Excessive heat or cold, moisture, vibration, dirt, oil and corrosive vapours can all contribute to deterioration therefore routine testing can identify problems before they result in injury or equipment failure.

Insulation testers provide noise-free, reliable results. They are safe and easy to use and the ideal solution for troubleshooting, commissioning and preventative maintenance applications.


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Afficher 1 - 20 des 152 produits
Nombre de résultats par page
Description Prix Tester Type Minimum Test Voltage Maximum Test Voltage Maximum Insulation Resistance Measurement Display Type Calibrated Test Current Battery Life Minimum Operating Temperature Maximum Operating Temperature Power Source Safety Category Level Safety Category Voltage Safety Category
N° de stock RS 921-8718
Référence fabricant1006-337
MarqueMegger
635,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital RSCAL 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 921-4514
Référence fabricant1004-735
MarqueMegger
565,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital - 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 921-8727
Référence fabricant1006-337
MarqueMegger
648,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital UKAS 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 535-6487
Référence fabricantMIT230
MarqueMegger
500,00 €
Each
Unité
Insulation & Continuity Tester 250V dc 1000V dc 999MΩ LCD RSCAL 200mA 3000 5-Second Tests -10°C +55°C Battery CAT III 300V CAT III 300V
N° de stock RS 535-6493
Référence fabricantMIT230
MarqueMegger
513,00 €
Each
Unité
Insulation & Continuity Tester 250V dc 1000V dc 999MΩ LCD UKAS 200mA 3000 5-Second Tests -10°C +55°C Battery CAT III 300V CAT III 300V
N° de stock RS 921-4517
Référence fabricant1004-731
MarqueMegger
510,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital - 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 921-8691
Référence fabricant1006-336
MarqueMegger
580,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital RSCAL 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 921-8695
Référence fabricant1006-336
MarqueMegger
593,00 €
Each
Unité
Insulation Tester 10V 1000V 200GΩ Analogue, Dual Digital UKAS 205mA 2200 (OFF) Test @ 55 s, 2200 (ON) Test @ 5 s -20°C +55°C Battery CAT IV 600V CAT IV 600V
N° de stock RS 535-3191
Référence fabricantMIT230-EN
MarqueMegger
430,00 €
Each
Unité
Insulation & Continuity Tester 250V 1000V dc 999MΩ LCD - 200mA 3000 5-Second Tests -10°C +55°C Battery CAT III 300V CAT III 300V
N° de stock RS 518-5998
Référence fabricantFLUKE 1503
MarqueFluke
439,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ Graphic Display - Backlit - 200mA - -20°C +55°C Battery CAT III, CAT IV 600V CAT III 600 V, CAT IV 600V
N° de stock RS 528-9359
Référence fabricantFLUKE 1503
MarqueFluke
522,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ Graphic Display - Backlit UKAS 200mA - -20°C +55°C Battery CAT III, CAT IV 600V CAT III 600 V, CAT IV 600V
N° de stock RS 528-9343
Référence fabricantFLUKE 1503
MarqueFluke
509,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ Graphic Display - Backlit RSCAL 200mA - -20°C +55°C Battery CAT III, CAT IV 600V CAT III 600 V, CAT IV 600V
N° de stock RS 512-2492
Référence fabricantFLUKE-1577
MarqueFluke
692,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ - - 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 763-9267
Référence fabricant1001-935
MarqueMegger
2.440,00 €
Each
Unité
Insulation Tester 250V 5000V 10TΩ LCD - 6mA 6 h -20°C +50°C Battery, Mains - - CAT IV 600V
N° de stock RS 905-7002
Référence fabricantFLUKE-1587 FC
MarqueFluke
904,00 €
Each
Unité
Insulation Tester 50V 1000V 2GΩ Backlit LCD RSCAL 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 905-5920
Référence fabricantFLUKE-1587 FC
MarqueFluke
834,00 €
Each
Unité
Insulation Tester 50V 1000V 2GΩ Backlit LCD - 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 905-7011
Référence fabricantFLUKE-1587 FC
MarqueFluke
917,00 €
Each
Unité
Insulation Tester 50V 1000V 2GΩ Backlit LCD UKAS 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 512-2795
Référence fabricantFLUKE-1577
MarqueFluke
738,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ - RSCAL 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 512-2802
Référence fabricantFLUKE-1577
MarqueFluke
769,00 €
Each
Unité
Insulation Tester 500V 1000V 2GΩ - UKAS 1mA 1000 h -20°C +55°C Battery CAT III, CAT IV 600 V, 1000 V CAT III 1000 V, CAT IV 600V
N° de stock RS 528-9337
Référence fabricantFLUKE 1507
MarqueFluke
629,00 €
Each
Unité
Insulation & Continuity Tester 50V 1000V 10GΩ - UKAS 200mA - -20°C +55°C Battery CAT III, CAT IV 600V CAT III 600 V, CAT IV 600V