Technical data

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Slide-link disconnect

Types SAKT 1 and SAKT 4

is available in two designs.

Sliding link terminal.

Feed-through terminal.

The combinations of these designs enable the user to carry out

various connections. Plug bolts can be arranged in all designs

for test plugs.

Terminal 1

SAKT 1 as feed-through terminal with additional plug bolt.

Terminal 2

SAKT 1 as sliding link terminal with 2 plug bolts; slide link

closed.

Terminal 3 and 4

Slide link terminal connected by QVS, terminal 3; slide link open.

Slide-link disconnect

Types SAKT 2 has on each side of the disconnection, two

points for the testing plug or cross-connections. Cross-

connections can be made as fixed bridges or as cross-

connection links. These cross-connection links are especially

important for short-circuiting instrument transformers.

Terminal 1

SAKT 2 disconnect terminal with 4 plug bolts; disconnect

position closed.

Terminal 2, 3 and 4

SAKT 2 with QVS, terminal 2 and 3 connected, terminal 3 and 4

disconnected. Terminal 4 slide link connection open.

Terminal 5 to 8

SAKT 2 with QVS between terminals 5-6 and 7-8, both

disconnected; permanent cross-connection on terminals 6

and 8.

Typical test circuit applications

Voltage measurement with permanent meter on supply side and

meter plugged in on consumer side. Motor circuit is still

disconnected.

4 Terminals SAKT 043792.

Cross-connection accessories

Cross-connection link QCS, 2, 3 and 4 ways to connect

adjacent terminals.

In SAKT 1 only to be used on the left hand side.

In SAKT 2 to be used on both sides.

Distance sleeves VH 19 031800 and screws BS 25.5 033470

are required to fit QVS in the individual terminals. The cross-

connection links are designed so that the plug bolts for test

plugs arranged in the terminals are kept free in each position.

The 2-pole design type QVS 2 is arranged also in such a way

that operating is possible when the plug bolts are fitted.

Plug bolts with insulation sleeve as protection for test plugs

and cross-connection plugs with 4.0mmØ.

Type StB 25

In SAKT 1 to be used for the left hand side.

In SAKT 2 to be used on both sides.

StB 25 black (027150)

BS 25 no insulating sleeve (033470)

BS (M3 x 25) 029250 BS (M3 x 25.5) 033470

Additional cross-connection methods available for disconnect terminals

Part

Designation

QVS

Sleeve

Screw (M3 x25.5)

Screw Bolt

Sleeve

Screw (M4 x 6)

Screw (M3 x 25)

Washer

Screw Bolt

Screw (M3 x 7)

Side Lock

Method of

Cross-connection

Side

Jumper Link

Connects

No. of ways

—

SAKA 10

—

VL2 013590

SB21 014700

—

BS 013630

—

SS 013640

—

SAKB 10

—

VL2 013590

—

BS 013630

—

SS 013640

—

SAKC 10

—

VL2 013590

—

BS 013630

—

SS 013640

—

SAKT 1

QVS2 030730

QVS3 032930

QVS4 030740

VH19 031800

BS 033470

VL2 013590

SB21 014700

VH19 028510

—

BS 029250

SS 016440

SB11 024270

BS 019970

SSP3 053176

SAKT 2

QVS2 030730

QVS3 032930

QVS4 030740

VH19 031800

BS 033470

—

SSP3 053176

TERMINAL BLOCK DESIGNATION

The creepage and clearance dimensions necessary for the nominal voltage of the terminals can be affected by the installation of

accessories. This is particularly so for cross-connections of adjacent terminals of different potentials. The following limitations are to

be observed.

SAKT 1 SAKT2

for adjacent QL 250V for adjacent QL 60V

for adjacent QVS 60V for adjacent QVS 60V

for adjacent StB 25 or StB 16 60V for adjacent StB 25 or StB 16 60V

In order to retain the nominal voltage of 300V, Partitions TW or TSch 2 must be inserted. TSch 2 only to be used for SAKT 2.

Please refer to the accessories Section.

2 3 4 QVS 2

2 3 41

5 6 7 8

1 2 3 4

Test Voltmeter

Motor

Voltmeter

QVS 2S

QVS