JUMO 709050 IPC IGBT Power Converter IPC 200A Operating Manual - Manual (Page 21)

IGBT Power Converter 200A [Patent No. EP1 126 591 B1] 02.08 21
3 Installation
3.4.1 Opening the housing
h Disconnect the built-in converter from the voltage supply on all poles
h Wait for 1 minute
h Check that no voltage is present
h Undo the 2 screws from the bottom of the converter
h Swing up the housing cover from the bottom of the converter
V Caution!
The converter has 2 power supplies (to the control section and to the power
section). Disconnect both supplies (all poles) prior to starting work on the
converter.
Allow 1 minute to elapse after switching off prior to starting work on the
converter, since potentially fatal voltages could be present in the converter
interior and at the terminals.
Caution! Hot cooling body!