Dielectric Withstand Tester

Protect your products and end-users from electrical hazards with Vitrek’s high-performance dielectric withstand testers (hipot) designed to rigorously evaluate the insulation strength of your electrical devices. Whether you refer to them as dielectric strength testers or hipot testers, these instruments are essential for validating product safety, meeting international compliance standards, and preventing insulation breakdown that can lead to shock, fire, or catastrophic failure.

Vitrek’s 95X and V7X Series hipot testers deliver unmatched performance in dielectric withstand testing by combining high voltage capability, fast ramp and dwell times, advanced arc detection, and multi-mode insulation resistance analysis—all in a single platform. With AC outputs up to 30kV, DC outputs up to 15kV, and leakage current sensitivity down to 100 picoamps, these systems give you complete control over every aspect of dielectric withstand testing—from design validation to final product inspection.

Vitrek 95X Series Hipot and Electrical Safety Testers

  • High AC & DC Output
  • Low Leakage Measurement
  • 4-Wire Milli-Ohmmeter — Up to 100K ohms
  • Tera-ohm Insulation Resistance
  • Optional 40A Ground Bond
See 95X Series

Vitrek V7X Series Hipot and Electrical Safety Testers

  • AC & DC Output up to 5KV
  • High Current Output — 20mA AC / 10mA DC
  • Insulation Resistance — Up to 90 Giga-ohms at 1000V
  • Leakage Detection — Down to 0.1 micro-amp
  • Optional 30A Ground Bond
  • 16-Channel Switching
See V7X Series

Key Features and Benefits

  • High Voltage Dielectric Withstand Testing
    Evaluate insulation strength with AC hipot to 30kV (external) and DC hipot to 15kV, suitable for medical devices, aerospace systems, industrial equipment, and power electronics.
  • Precision Leakage Measurement
    Measure leakage currents with extreme sensitivity—down to 100 picoamps—for accurate validation of dielectric integrity and insulation resistance.
  • Advanced Arc Detection Technology
    Protect your DUTs with dual-parameter arc detection that monitors both amplitude and duration—far more accurate than traditional single-limit systems.
  • Fast Ramp, Dwell, and Discharge Times
    Achieve ramp rates up to 50kV/second, dwell times as low as 20ms, and optional flash test modes for ultra-fast production throughput.
  • Built-In Insulation Resistance Testing
    Add deeper insight into dielectric performance with IR measurement up to 6 TΩ, using programmable test voltages and multiple stop criteria (end on time, pass, or fail).
  • Multi-Dwell & Voltage Step Testing
    Perform complex test sequences with multi-level voltage steps and multi-dwell functionality—ideal for analyzing layered insulation systems or dielectric aging.
  • Automated Multi-Point Testing
    Scale up with the Vitrek 964i HV scanner, allowing up to 256 test points for automated dielectric testing of large components or multi-lead devices.
  • Global Compliance Support
    Fully compliant with UL, IEC, EN, CSA, and TUV standards—trusted by manufacturers worldwide for high-reliability product certification.
  • Operator & DUT Safety First
    With TLSS™ Test Lead Safety Sense, Safety Fault Interlock (SFI™), and GFI fast shutdown, Vitrek testers ensure a safe environment for both operators and equipment.

FAQs 

A dielectric withstand test applies a high voltage between current-carrying parts of a device and its non-current-carrying conductive components (like ground or chassis). The goal is to verify that the insulation can withstand high-voltage stress without allowing significant leakage current to pass through.

If the insulation fails, the device could pose a serious shock or fire hazard under real-world operating conditions.

This test is typically performed using Vitrek hipot tester and is a fundamental requirement in most electrical safety standards, including UL, IEC, CE, CSA, and ISO 17025.

Vitrek’s advanced testers streamline dielectric testing through:

  • High-output AC and DC voltage (up to 30 kV)
  • Picoamp-level leakage current measurement
  • Built-in arc detection, ramp control, and interlocks
  • Compatibility with QT Insite software for automation, result logging, and compliance reports

Whether you’re running high-volume production tests or precision R&D, Vitrek’s V7X and 95X Series testers help ensure consistent, reliable, and safe insulation verification.

Dielectric withstand testing helps ensure:

    • Electrical safety for users and technicians
  • Detection of insulation defects like cracks, voids, or contamination
  • Prevention of premature failure due to weak insulation
  • Compliance with global safety standards
  • Confidence in product quality and consistency

It is often used during:

  • Type approval or product certification
  • Routine production testing (100% of units)
  • Post-repair validation

Depending on the model, Vitrek testers support up to 15kV DC and 30kV AC (with external options), covering everything from low-voltage electronics to high-voltage industrial systems.

Yes. Vitrek testers integrate multi-mode insulation resistance testing up to 6 TΩ, allowing users to evaluate both breakdown voltage and long-term insulation quality.

Absolutely. Vitrek testers feature SCPI command support, USB, Ethernet, RS232, and optional GPIB interfaces, making them ideal for integration into automated test systems (ATEs).

AC dielectric testing stresses insulation as it would experience under real-world alternating current conditions, while DC dielectric testing is better for detecting insulation weaknesses without capacitive charging effects. Vitrek supports both for maximum flexibility.

Yes, dielectric strength testing is typically required by various certification bodies, such as UL (Underwriters Laboratories), IEC (International Electrotechnical Commission), and CE (Conformité Européenne). These tests ensure that electrical products meet the necessary safety standards for use in critical applications.

Yes. Both the 95X and V7X series include ramp control and programmable discharge settings, with picoamp-level leakage measurement for highly capacitive DUTs such as solar modules.

Ready to meet the highest insulation standards? Discover the speed, accuracy, and power of Vitrek dielectric withstand testers- built for performance-driven teams who demand more from their safety testing.

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