802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 285/293
Annex
Annex
32 MCU-MH (Motor Control Unit - Module Housing)
32.1 Extract from the Technical Description
The following sections are an extract from the Technical Description of the electrical motor
control unit MCU-MH.
The complete Technical Description is available under the order number 953-0071.9.
32.2 Application
The MCU-MH controls the following motor operating mechanisms for three-position switches in
medium-voltage load-break switchgear and circuit-breaker switchgear:
• Spring-operated mechanism
• Spring-operated/stored-energy mechanism
• Slow motion mechanism
The MCU-MH is mounted in the module housing on standard top-hat rails.
Application The MCU-MH is equipped with a universal wide voltage range. It can optionally be connected
to different auxiliary and motor voltages. The auxiliary and motor voltages can be combined
and do not necessarily have to be identical.
32.3 Design, function
Fig. 193: MCU-MH in module housing Fig. 194: Dimensions of MCU-MH
(data in mm)
①
Identification of connections of upper plugs
⑥
Upper module plug -X1.4
②
Reset pushbutton
⑦
Upper module plug -X1.3
③
LED status indicator
⑧
Lower module plug -X1.2
④
Serial number in clear text
⑨
Lower module plug -X1.1
⑤
Identification of connections of lower plugs
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