Test-disconnect terminals are mostly used in the sectors of electricity generation and supply.They are tailored to the variety of switching
demands for current-converter secondary circuits that predominate in these sectors. Current transformers must always have a secondary
circuit when electricity meters and measuring instruments are being replaced, or when making comparative measurements.
CONTA-CLIP test-disconnect terminals are available in the following three basic versions, each with or without a pre-assembled socket plug.
All versions provide touch-safe protection according to DGUV-3.
A captive, screw-on sliding partition is used to separate the current and voltage paths.
The switch position is always easy to detect since the disconnect screw has a yellow insulating sleeve.
In all versions, the STB 14/4 socket plugs can be used for a test pick-off for measuring values using the PS 4 test plug or the conventional (4 mm) insulated test plugs.
The VH 19 connecting sleeves and the BS 25 screws or STB 14/4 socket plugs are required for fastening the QVS cross-switches above the terminal block. The cross-switches are available from 2 to 4 poles.
The QSB internal cross-switches are positioned within the terminal block and make contact over the sliding contact on the LT- or QT-terminals. The cross-switches are available from 2 to 4 poles.
The BS 25 mounting screws are used together with the VH 19 connecting sleeves to establish contact with the QVS cross-switches.
PTK 10/LT , Test-disconnect terminal
|Rated wire cross section||10 mm²|
|Rated voltage IEC||400 V|
|Rated current IEC||10 A|
|Mounting||TS 35 and TS 32|
|Rated impulse voltage||4 kV|
|Approvals||CSA, CSA US|
|Height TS 35/7.5||47 mm|
|Height TS 32||51,5 mm|
|Number of levels||1|
|Plug gauge acc. EN 60 947-1||A5|
|Cross connect channels||2|
|Cross section single wire from||0,2 mm²|
|Cross section single wire to||10 mm²|
|Cross section stranded wire from||0,2 mm²|
|Cross section stranded wire to||10 mm²|
|Cross section stranded with ferrule from||0,2 mm²|
|Cross section stranded with ferrule to||10 mm²|
|Rated wire cross section from (AWG)||8|
|Rated wire cross section to (AWG)||22|
|Stripping length||12 mm|
|Screw size||M 4|
|Torque min||1,2 Nm|
|Torque max||2 Nm|
|Insulation material||Polyamide 6.6|
|Operating temperature from||-40 °C|
|Operating temperature to||105 °C|
|Rated voltage CSA||600 V|
|Rated current CSA||45 A|
|CSA test standard||C22.2 No 158|
|Rated voltage CSAus||600 V|
|Rated current CSAus||45 A|
|CSAus test standard||UL 1059|
|Country of origin||DE|