High current test probes (HSS) are used in many industries and for applications with high currents, e.g. for testing, for function tests, for signal transmission, for power supply, in production and as a built-in contact element. Another field of application is precise measurements, for which test probes with very low internal resistance are required, so-called low-ohm test probes.
For reliable transmission of high currents, the plungers in INGUN high current test probes consist of two parts. During the stroke movement the plunger parts are deflected away from each other in a radial direction. In doing so, the plunger parts press against the barrel and the transfer resistance is reduced. This principle allows the transmission of high currents with limited warming.
High current probes installation options
The high current test probes can either be pressed or screwed into the receptacle. Installation without a receptacle (KS) is also possible.
Screw-in probes are recommended for applications with vibrations, overhead installation, and where there is a danger of test probe moving out of the receptacle (snapping effect).
Depending on the application and the related test demands, INGUN offers various high current test probes (HSS):
Standard HSS are unrivalled HSS probes with an optimal ratio of rated current load of 20 to 100 Amps in a compact design. Both press-in versions and screw-in versions are available.
Short-stroke HSS and are used in applications where limited test space is available, and long-stroke HSS are used when contacting requires a long stroke (e.g. dual-stage contacting).
Dipole high current probes
Using dipole high current probes (Kelvin probes) four-wire measurements can be performed to precisely define resistance. In doing so, the voltage (V) on the inner conductor and the current (A) on the outer conductor are measured.
High current clamps
High current clamps (round/flat) are used to contact flat connector blades and round posts, such as those found in plug connectors. PCBs and threaded bolts can also be contacted. Four-wire clamps are suitable for performing four-wire measurements.
Robust high current probes
Robust high current probes are used wherever challenging atmospheric conditions, side forces, or vibrations can occur. These robust probes are also suitable as a permanently assembled contact element in machinery.