
18
6.3.4 Closing operation
Make sure that the springs of the operating mechanism are
loaded, as indicated by the yellow signal in the window (7).
Press the closing pushbutton (4). Closing is displayed by the
letter “I” in the red part of the window (6).
If there is a shunt closing release, the closing operation can be
obtained by remote control.
NOTE.
The closing pushbutton is not available for the re-
movable version of the circuit-breakers (HAD/UniAir) with-
out PR521 protection release.
6.3.5 Opening operation
Press the opening pushbutton (3).
Opening is displayed by the letter “O” in the green part of the
window (6).
If there is a shunt opening release, the closing operation can be
obtained by remote control.
Summary of Contents for HD4/R
Page 2: ......
Page 21: ...21 7 9 Overall dimensions 7 9 1 Fixed HD4 R 12 24 kV 630 1250 A TN 7237 Figure 9 ...
Page 22: ...22 7 9 2 Fixed HD4 R 12 24 kV 630 1250 A TN 7234 Figure 10 ...
Page 24: ...24 7 9 4 Plug in HD4 S 12 24 kV 630 1250 A TN 7236 Figure 12 ...
Page 25: ...25 7 9 5 HD4 Uniair 12 24 kV 630 1250 A TN 7235 Figure 13 ...
Page 26: ...26 7 9 6 HD4 Uniair F 12 24 kV 630 A TN 7275 Figure 14 ...
Page 27: ...27 7 9 7 HD4 Uniair 2R 12 24 kV 630 1250 A TN 7274 Figure 15 ...
Page 28: ...28 7 9 8 HD4 Uniair A 12 24 kV 630 1250 A TN 7273 Figure 16 ...
Page 29: ...29 7 9 9 HD4 UniMix F 12 24 kV 630 1250 A TN 7366 Figure 17 ...
Page 30: ...30 7 9 10 HD4 R SEC 12 24 kV 630 800 A 1VCD003536 Figure 18 ...
Page 37: ......