The VC24-24 MK3 is a general purpose high-voltage AC test set, ideal for Flash Testing of plant and switchgear, such as circuit breaker vacuum bottles, with voltages up to 24kV AC.
The output voltage is variable from zero to 24kV. A zero-voltage interlock is provided, ensuring that the output may only be energised with the voltage control at zero.

The unit features automatic mains voltage selection and an emergency-off switch.
The output voltage and current are metered by large, linear analogue instruments. The unit has a x0.1 range on the mA meter.

The mA meter is marked with a green scale for currents under 10mA and a red scale for currents larger than 10mA.
The test object and output are protected by an adjustable electronic current trip. The trip level may be set to 16, 20 or 24mA. Breakdown of the test object is visibly indicated and the unit must be manually reset after a trip condition before testing can be resumed.
The unit is supplied in a compact, portable case with a permanently connected 2 metre long HV output lead.