Like most organisations we use cookies on our site, these allow us to improve your experience on our site, provides us with measurement and analytical data, and allows us to make use of the latest digital marketing capabilities - if you want to know more about cookies and how you can control them see our cookie policy here, if you are happy for us to use cookies then please click the button opposite.
The images provided are for illustrative purposes only. Please refer to product description.

Chauvin Arnoux CA6550 10KV Insulation Tester

With their test voltages of up to 10 kV/15 kV, the Chauvin Arnoux C.A 6550 and C.A 6555 megohmmeters are expert tools for testing insulation safely and accurately

Next Day Delivery (subject to availability)

£3,478.20 including VAT @ 20% £2,898.50 excluding VAT Regular Price: £4,092.00
  • Case Included
  • Multiple Test Modes
  • PC Report Generation
  • Range 10 kΩ to 30 TΩ
  • Storage of 80,000 measurements
  • Test Voltages 40 V to 10/15 kV
  • Windows® software included
  • FreeDelivery
  • 30DayMoneyBack
Required Fields
  • Description
  • Features & Specification
  • Resources
  • Delivery

Chauvin Arnoux CA6550 10KV/15kV High Voltage Insulation Tester

Insulation Measurement at 15kV, a job for experts

With their test voltages of up to 10 kV/15 kV, the C.A 6550 and C.A 6555 megohmmeters are expert tools for testing insulation safely and accurately. As they comply with the most recent recommended practice while taking into account future developments, they are ideal for use on rotating equipment and machinery operating at 12 kV or even higher.

The multiple test modes mean that you can both assess the insulation in qualitative terms by non-destructive testing (“I-limit” and “early-break” modes) and use samples to investigate insulation ageing problems for preventive maintenance purposes (“burning” mode). The C.A 6550 and C.A 6555 offer quick, effective checking of test execution by displaying the evolution of the test in progress in graphic form.

Thanks to their large storage capacity, complete analysis of the test sessions performed on-site can be carried out with the DataView® software after transferring the data onto a PC.

Chauvin Arnoux CA6550 Comes Supplied With:

  • CAT IV Accessory Bag
  • 2x 3m Safety Leads
  • 1 Guard Test Lead
  • Mains Power Cord
  • 3x Crocodile Clips
  • USB/Optical Communication Cable
  • User Guide
  • DataView Software

Key Features:

  • Wide measurement range from 10 kΩ to 30 TΩ
  • Fixed or programmable test voltage from 40 V to 10/15 kV
  • 5 mA charging current
  • Large backlit LCD screen with digital display, bargraph and R(t)+u(t) , i(t) and i(u) graphs
  • Automatic calculation of DAR / PI / DD /∆R (ppm/V) ratios
  • Multiple test modes: voltage ramp and step with “burning”, “early break” and “I-limit” modes
  • 3 filters to optimize measurement stability
  • Calculation of R at a reference temperature
  • Storage of 80,000 measurements and Real-time Clock
  • Optically-isolated USB communication for transfer onto PC and report generation with the DataView® software

key Applications:

Thanks to their large measurement range, extending up to 30 TΩ, the C.A 6550 and C.A 6555 meet the requirements of companies manufacturing cables, transformers, rotating machinery and medium-voltage generators, as well as professionals in the Electricity Transmission and Distribution sector.

Insulation measurement at up to 10/15 kV

On LV/HV rotating machines, transformers, cables, high-voltage generators, overhead and underground electricity transmission and distribution networks, surge suppressors / spark arresters, measurement transducers, etc.

2 levels of diagnostics :

  • “Go/No Go” test
  • Qualitative measurement for preventive maintenance purposes:
  • Test with programmable duration

Qualitative measurement:

Polarization Index (PI) ratio, dielectric absorption ratio (DAR) and dielectric discharge (DD) index for testing heterogeneous multi-layered insulation

Fixed voltage mode

Step, Ramp mode:

  • Results independent of temperature, detection of insulant cracking and ageing

I-limit or dI/dt (early-break) trigger modes:

  • Optimization of non-destructive tests (e.g. Varistor testing)

Burning mode (no triggering)

Selectable voltage from 40 V to 10,000 / 15,300 V

Graphic LCD display of R(t) + u(t), I(t), I(u) (useful for testing semi-conductors)

Storage of results for export onto a PC

  • By means of analysis software to process the measurement logs.

ISSWWW and Chauvin Arnoux

The Chauvin Arnoux Group of companies, incorporating the Metrix and Multimetrix brands are synonymous with design and production of the finest quality products for the electrical testing industry, covering a diverse sector of the market for over 100 years. From their awarded Digiflex current sensors, universal testers, multimeters, network and power analysers, right up to laboratory instrumentation and beyond.

ISSWWW and Chauvin Arnoux have enjoyed a close working partnership for many years and we supply many of their products to trade and industry the world over.


Chauvin Arnoux CA6550 & CA6555 HV Insulation Tester
CA6550 CA6555
Test Voltages Ranges 10kV 15kV

500 V: 10 kΩ to 2 TΩ
1,000 V: 10 kΩ to 4 TΩ
2,500 V: 10 kΩ to 10 TΩ
5,000 V: 10 kΩ to 15 TΩ
10,000 V: 10 kΩ to 25 TΩ

15,000 V: 10 kΩ to 30 TΩ
Fixed test voltages: 500 / 1,000 / 2,500 / 5,000 / 10,000 V  500 / 1,000 / 2,500 / 5,000 / 10,000 / 15,000 V
Variable test
40 V - 10,000 V 
3 presettable voltage values 
40 V - 15,000 V
3 presettable voltage values
Adjustment increment
for variable voltages
Variable: 40-10 kV step : 40 V-1 kV: 10 V
1 kV-10 kV: 100 V
Variable: 40-15 kV step: 40 V-1 kV: 10 V 
1 kV-15 kV: 100 V 
Ramp mode 3 presettable ramps: start voltage / end voltage / duration
Ramp configuration
40-1,100 V / 500-10,000 V 40-1,100 V / 500-15,000 V
Step mode Up to 10 steps (value and duration configurable for each step)
Voltage measurement after test AC: 0 – 2,500 V / DC: 0 – 4,000 V
Capacitance measurement  0.001-9.999 µF / 10.00-49.99 µF
Leakage current measurement  0 - 8 mA
Discharge after test Yes / Automatic
Additional test
stop modes
I-limit Programmable: 0.2-5 mA
Early-break dl/dt
Timer Up to 99 minutes 59 seconds
Burning mode Burning Constant testing
Ration calculation PI,DAR,DD
Calculation of R at ref. T° Yes
measurement display filter 3 filters with 3 possible time-constant
Graphs on display R(t)+u(t); i(t); i(u);
Storage 256 recordings, 80,000 points : R, U, I and date
Communication Optically-isolated port for USB and RS232 links
PC Software DataView®
Power supply NiMH rechargeable batteries, 8x 1.2 V / 4,000 mAh
charging by external voltage: 90-260 V 50/60 Hz
Battery charging Battery charging possible while performing insulation measurements
Electrical safety 1,000 V CAT IV - IEC 61010-1 and IEC 61557
EMC, mechanical protection, altitude EN 61326-1 , IP54 , 3,000 m
Dimensions and weight LxWxH: 340 x 300 x 200 mm, 6.2 kg approx. (excluding accessories)

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.