Elbro Schuki 2K Mode D'emploi page 6

GB
The Schuki 2K is a test device for testing socket outlets, cable connections and circuits protected by earth-leakage circuit
breakers (ELCB) in 230-V systems as well as older installations with classic 'protective multiple earthing'. Socket outlets
and connecting cables are tested for correct wire connections.
The effectiveness of ELCB protected circuits is tested by calibrating the nominal fault current.
Device description
The Schuki 2K is plugged straight into the socket outlet to be tested in the installation. The touch electrode on the top of
the housing functions according to the same principle as a phase tester.
Functions
The Schuki 2K (figure 1) is divided into three areas:

The red warning area indicates the function of the protective earth.

The yellow testing area indicates the wiring connections.

The green area is responsible for the earth-leakage circuit breaker (ELCB).

The status of the protective circuit of the socket being tested is indicated by a combination of glowing and non-
glowing lamps.
The lamps and their meanings

In the yellow area:
L1 Phase conductor
PE Protective earth
N Neutral conductor

In the red area:
L2 Protective earth
GL1 Touch electrode

In the green area:
L3 ELCB protected circuit
Control elements
Two elements available for testing the ELCB circuitry.

(S1) Rotary switch to adjust the nominal fault current

A button to trigger the nominal fault current
The touch electrode tests the phase conductor according to the principle of a phase tester.
Symbols used in this documentation
To provide a better overview, images are used to enhance the descriptions of faults. For this purpose, the following
symbols are used:

Symbol not shaded:
The lamp is not glowing or the button has not been pressed

Symbol shaded:
The lamp lights up or the button has been pressed

Plug symbol for test results:
The recognised circuitry is portrayed.

Danger symbols:
The recognised circuit is a danger to life.
Operating Instructions
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