Surge tester ST 4000A

The practical allrounder for your coils and windings.

Type of device
Rack 19" / 6 HE

Surge voltage: Voltage range
100 - 6.000 V

Surge voltage: Impact capacity
18 nF, optional: 47 nF, 100 nF, 200 nF

High voltage DC: Voltage range
100 - 6.000 V / 10 mA

Insulation DC: Measuring range
100 - 6.000 V / 10 GΩ/kV

20 mΩ - 200 kΩ up to 1A

Internal Matrix
4 phases + PE, 4-wire

The ST 4000A surge tester was developed for applications of all kinds - whether in production, quality assurance, development or repair. Almost 40 years of experience in safety testing technology have gone into the development - the result is a state-of-the-art surge tester.

Winding goods such as stators, coils or transformers can be examined precisely and conveniently with the new ST 4000A surge voltage tester. Winding short circuits and insulation faults within a winding can thus be detected before the fault affects the test item. Failures of electric motors and the associated recalls can thus be avoided.

Modern – efficient – intuitive

With the familiar Windows operating system in combination with the large 15.6“ touch display, the ST 4000A can be operated as easily and intuitively as a modern smartphone. Via the various interfaces such as USB and Ethernet / LAN, the tester can be easily integrated and controlled in your company network. The DAT software developed by SPS electronic with its comprehensive test editor not only allows you to create and parameterise your own test programmes, the test results can also be conveniently evaluated, saved and processed. Alternatively, we are happy to support your individual software development with a DLL available as an accessory.

All this and much more...

The ST 4000A can easily be combined with other testing technology from SPS electronic. Depending on the requirements, the surge tester can be extended by a resistance or high-voltage test AC.

  • State-of-the-art surge voltage tester (detection of winding shorts and insulation faults within a winding)
  • According to national and international standards (IEC, EN, UL, VDE etc.)
  • 15.6“ Touchdisplay
  • Expandable with further test technology, depending on requirements
  • PC software for remote control of the unit or alternatively DLL for individual software design
  • USB and Ethernet / LAN interface
  • Internal PC


Individual solutions

Customer-specific test systems according to your individual needs.

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Multifunction tester

Do you need to perform multiple tests with a single device?

Go to the multifunction testers >


Do you have any questions? We are glad to help you.

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