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ABB HD4/R User Manual

ABB HD4/R
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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.

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ABB HD4/R Specifications

General IconGeneral
BrandABB
ModelHD4/R
CategoryCircuit breakers
LanguageEnglish

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