Instructions for use – Rockwell Automation 140G-Rx Installation Instruction-140G-R User Manual

Page 8

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DIR 1000682R0002 (L5757)

(8)

1

8

2

3

4

6

5

7

Note

On request, a transparent cover that increases the degree of protection to IP54 can be installed on the front of the circuit-breaker. The cover is

equipped with a key lock.

Fig. 14

7. Instructions for use

7.1 Operating and signalling components

1 Push-button for the manual opening operation

2 Lever for manual loading of the closing springs

3 Mechanical indicator for circuit-breaker open “O” and closed “I”

4 Mechanical indicator for protection release tripped

5 Pushbutton for the manual closing operation

6 Indicator for springs loaded - unloaded

7 Operation counter (to order)

8 Key lock on the closing operation (to order)

Fig.13

2

3

6

Fig. 15

7.2 Circuit-breaker closing and opening procedures

Circuit-breaker operation can be either manual or electrical.

a) Manual operation for loading the closing springs
– Make sure that “O” (circuit-breaker open) is displayed by the indicator

– Make sure that the indicator (6) is WHITE (springs unloaded)

– Repeatedly operate the lever (2) until the colour of the indicator (6)

changes to YELLOW

b) Electrical operation for loading the closing springs

Electrica operation of the circuit-breaker is possible when the following

accessories are present (supplied to order):

– gearmotor for automatic loading of the closing springs

– shunt closing release

– shunt opening release.

The gearmotor automatically reloads the springs after each closing

operation until the yellow indicator appears (6, Fig. 15). If there is a

power failure during the loading operation, the gearmotor stops and

automatically continues with the spring loading operation once the

power returns. However, it is always possible to complete the reloading

operation in the manual mode.

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