Electrical component testing

Testing of electrical components in the accredited test laboratory from the following areas connectors,
and switchgear assemblies, renewable energies and the automotive industry and beyond

You can expect comprehensive engineering competence in development tests and type testing with an extensive
range of services from short-circuit tests and operating performance to insulation testing.

Whether you are working with electrical engineering, rail vehicles or mechanical engineering, we operate according
to German and international standards and guidelines, or in accordance with factory settings. All of the testing
laboratories involved are accredited according to DIN EN ISO/IEC 17025.

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Our portfolio


Electrical testing in the field of automotive

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Environmental Simulation and Vibration

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Material Testing for Plastics and Composite Materials

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Whether you need short-circuit, short-time withstand current capacity, switching capacity or continuous current testing, with its in-house transformers IMA Dresden can offer testing services with test currents of up to 25,000 A, alternating current at 1,000 V and 20,000 A, and direct current at 1,100 V. In spacious modern testing facilities, test currents are SPS-controlled and data such as the current-voltage curves and temperatures are recorded.

High-performance testing

The modern high-performance test bay offers versatile test applications up to 25,000 A, such as switching capacity, performance, electrical endurance and short-circuit testing.

Typical device groups

  • Power, load-break and transfer switches
  • Switch-fuse units
  • Contractors and motor-starters
  • Heavy-duty connectors
  • High-current components for the automobile industry
  • Switchgear combinations
Switching capacity
Operating performance
Electrical endurance
Testing voltageTest currentTest current
AC up to 800 Vup to 15,000 Aup to 25,000 A*
DC up to 1,100 Vup to 15,000 Aup to 20,000 A*
Loadohmic, inductiveohmic, inductive

*up to 0.06 s or protected by fuses or another protective device

Endurance testing

Flexible test fields are available for electrical, pneumatic and manually operated switchgears to test electrical/mechanical endurance, operational behaviour and the making and breaking capacity.

Typical device groups

  • Control devices, proximity switches, signalling switches
  • Relays, motor starters
  • Switch-fuse units
  • Contactor
Testing voltageTest powerTest current
AC up to 0–1,000 V140 kVAup to 200 A
DC up to 1,300 V140 kVAup to 200 A
Loadohmic, inductiveohmic, inductive

Heating and continuous current testing

Automated test field with versatile test options for switchgears and switchgear combinations:

  • Continuous data collection for
    • Temperature
    • Electricity
    • Voltage (determination of partial and total power loss)
    • Voltage drops/contact resistance
  • Cyclical electricity control (intervals/cycles)
  • Overlay with climate tests and vibration tests

Typical tests

  • Heating and continuous current testing
  • Proof of ageing resistance
  • Overload tests of devices with fuses and thermal trips
  • Determination of derating curves (electricity can be adjusted to target temperature, e.g. connection area)

Typical device groups

  • Terminal blocks and circuit points
  • Heavy-duty connectors
Alternating current*3-phase up to 2,000 A
1-phase up to 5,000 A
Direct current*up to 2,000 Aregulated

*testing at low voltage, ≤ 5V

Verification of aging resistance on Frame clamps 630 A

Insulation testing

  • Operating frequency electric strength up to 5 kV AC
  • Impulse voltage withstand up to 24 kV; 1,2µs/50µs (36 joules)

Other testing Options

  • Creepage and air gaps
  • Mechanical test benches force/displacement
    • Strength of operating units / misapplied forces
    • Mechanical strength of clamping points
    • Bend testing
    • Tensile test
  • IP tests / IK Code / touch protection
  • Climate tests (temperature / humidity); can be combined with other tests
  • Vibration / schock
  • Glow wire test / combustibility


  • DIN EN 60947 switchgears
  • DIN EN 61439 switchgear combinations
  • DIN EN 61535 Installed connectors for permanent connection in fixed installations
  • DIN EN 60998 Connecting devices for low-voltage circuits for household and similar purposes
  • DIN EN 60999 Connecting devices – electrical copper conductors – safety requirements for screw-type and screwless clamping units
  • DIN EN 60077 Railway applications – electrical equipment for rolling stock
  • DIN EN 60664 Insulation coordination for electrical equipment within low-voltage systems
  • DIN EN 60204-1 Safety of machinery – electrical equipment of machines
  • DIN EN 50155 Railway applications – electronic equipment used on rolling stock
  • LV 124 Electric and electronic components used in passenger vehicles weighing up to 3.5 tonnes
  • LV 214 Kfz – Connectors