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Test disconnect terminals SPTK 6

Up to four channels: used for potential distribution or test purposes
Lengthwise partition operated with screw to ensure deliberate switching operations
Touch safe BGV A3 compliant
Polyamide 6.6 UL 94-V0

Product description

Test-disconnect terminals are mainly used for power network, electricity generation and supply applications.

They are perfect for the wide variety of switching demands in the current-transformer secondary circuits that are common in these types of 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.

All versions provide touch-safe protection in compliance with 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 STBI 19/4 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.

Cross-switches QVSI

The VH 19 connecting sleeves and the BS 25 screws or STB 19/4 L socket plugs are required for fastening the QVSI cross-switches above the terminal block. The cross-switches are available from 2 to 10 poles.

Cross-switches QSBI

The QSBI 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.

Mounting screw BS 25

The BS 25 mounting screws are used together with the VH 19 connecting sleeves to establish contact with the QVSI cross-switches.

Switch lock PTK-SP

The PTK-SP switch lock is mounted over the slider on the SPTK terminals. It keeps the partition screws from being accidentally touched by a screwdriver.

Insulated socket plugs STBI 19/4 L

The STBI 19/4 L socket plugs can be screwed into the inside cross-connection channels. They are used together with the VH 19 connecting sleeves to establish contact with the QVSI cross-switches. They are also used to hold the PS 4 test plugs or conventional (4 mm) insulated test plugs.

Short-circuit plug KS-SQI

The KS-SQI short-circuit plugs are used to make pluggable cross-connections between the SPTK terminals in the outer cross-connection channels. The plugs can also be put in the built-in park position of the SPTK terminals when not in use. The short-circuit plugs are available from 2 to 5 poles.

Cross-connector SQI 6

The SQI cross-connector is used to make a pluggable cross-connection between the SPTK terminals in the outer cross-connection channels. The cross-connectors can also be put in the built-in park position of the SPTK terminals when not in use. The cross-connectors are available from 2 to 30 poles.

Parts	Rated voltage IEC	Rated impulse voltage	Additional information	Height TS 35/7.5	Rated voltage UL	Rated voltage cUL	Country of origin	Weight
17520.2 SPTK 6/DU, Test Disconnect feed through terminal	800 V	8 kV		47 mm	300 V	300 V	CZ	26,084 g
17521.2 SPTK 6/LT, Test Disconnect terminal, slide disconnect	400 V	4 kV		47 mm	300 V	300 V	CZ	27,28 g
17522.2 SPTK 6/QT, Test Disconnect feed through terminal with slide disconnect	400 V	4 kV		47 mm	150 V	150 V	CZ	28,19 g
17523.2 SPTK 6/LT/HB, Test Disconnect terminal, slide disconnect finger operated	400 V	4 kV		63 mm	300 V	300 V	CZ	28,43 g
17524.2 SPTK 6/LT/STBI/YE, Test Disconnect terminal, slide disconnect with STBI, Yellow	400 V	4 kV	with sockets	63 mm	300 V	300 V	DE	29,65 g
17525.2 SPTK 6/LT/STBI/BU, Test Disconnect terminal, slide disconnect with STBI, Blue	400 V	4 kV	with sockets	63 mm	300 V	300 V	DE	29,65 g

Part

17520.2
SPTK 6/DU, Test Disconnect feed through terminal

Technical data

General data
Rated wire cross section	6 mm²
Colour	Beige
Rated voltage IEC	800 V
Rated current IEC	41 A
Mounting	TS 35
Rated impulse voltage	8 kV
Overvoltage category	III
Contamination degree	3
Approvals	UL, cUL, KEMA KUR

Dimensions
Length	93 mm
Width	8,1 mm
Height TS 35/7.5	47 mm

Connection data
Connections	2
Number of levels	1
Plug gauge acc. EN 60 947-1	A5
Cross connect channels	4
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	6 mm²
Rated wire cross section from (AWG)	22
Rated wire cross section to (AWG)	8
Stripping length	10 mm
Screw size	M 3,5
Screw type	Slotted
Torque min	1,2 Nm
Torque max	2,4 Nm

Materials
Insulation material	Polyamide 6.6
Flammability class	UL94-V0
Operating temperature from	-40 °C
Operating temperature to	120 °C

Approvals
Rated voltage UL	300 V
Rated current UL	33 A
UL test standard	UL 1059
Rated voltage cUL	300 V
Rated current cUL	33 A
cUL test standard	C22.2 No 158
KEMA KEUR test standard	EN 60947-7-1:2009