CONTA-CLIP's SPTK series test-disconnect terminals offer versatile switching options and cover all key measuring scenarios with minimal accessories.
They feature four function shafts for testing purposes and potential distribution as well as two cross connection channels and are suitable for a rated current of 41 A (IEC) and wire cross-sections of 0.2-10 mm².
The current or voltage paths are separated by a captive, screwable disconnect slide, which is integrated in the terminal. The disconnect slide screws are fitted with yellow insulation sleeves, which mark the switching position.
SPTK terminals are mainly used for electricity generation and supply applications. They are perfect for the wide variety of switching demands in the current-transformer secondary circuits that predominate in these applications. Current transformers must always have a closed secondary circuit, for use when electricity meters and measuring instruments are being replaced, or when making comparative measurements. The secondary circuits can be closed by using the shortcut plugs KS-SQI, cross switches QVSI or internal cross switches QSBI.
SPTK is more than a single terminal, it is a complete system. In order to show how the terminal can be mounted, with all the accessories we developed a movie to explain it in a clear and simple way.