Siemens 3NJ6160 Instrukcja obsługi - Strona 18

Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Przełącznik Siemens 3NJ6160. Siemens 3NJ6160 26 stron. Plug-in in-line fuse switch-disconnectors

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Unlocking the switching

device flap

Maintenance

Fitting the in-line fuse

switch-disconnectors

3ZX1012-0NJ61-2AN1

Before closing the cover return the lever to the "I" position (lever points in the direction of the

cover lock).

Then swivel the cover onto the switching device until the interlock mechanism reengages,

and close the lock of the cover.

Check regularly that the ventilation slots in the front covers of the switching devices are free

of dirt and clean them if necessary at suitable intervals.

Touching live parts results in death or severe personal

injury.

Only qualified personnel may operate the switchgear; they

must be familiar with the instructions and follow the warning

notices.

Always make sure that the breaker is in the OFF position

before fitting or removing the strips!

If the cubicle has been designed for in-line switching devices of plug-in type without shock-

hazard protection in front of the cubicle busbar, the cubicle busbar (relevant busbar section)

must be isolated before a in-line fuse switch-disconnector is fitted or removed.

Step

Procedure

The strips are pushed into the cubicle until the guide pins (sharp pins at the

rear, left an right, of the switching device) engage in the sectional holes of the

left and right-hand distribution bus side walls and the contacts have been

pushed directly onto the busbars.

Ensure that the switching device is in a horizontal position when pushing in the

strips.

The strips are then fastened on

the left and right- hand sides to

the vertical front sections with

the aid of two screws M6X12.

No special tool is required if on

the right-hand side the ammeter

and/or the monitoring indicator

are pulled out beyond the front.

A ratchet with short insert faci-

litates tightening of the screws

(see Fig.).

Unlocking the switching device

flap by blade in position "I":

Attach the tool at a position of 90°

vertical to the cover and push it

into the notch until resistance is

felt. Then depress the tool until

the flap interlock is deactivated

(see Fig.).

Do not leave the switching

device unattended with the

cover open!

Caution