4.5.1 Switching sequence
2.5 Safety
switches
Each door switch independently switches off the power supply for the
microwave oven when the door is opened.
Microwave ovens usually feature at least three safety switches.
The switching sequence is specified by the arrangement and is as
follows.
These switches are supported by the switch brackets.
The basic function of these switches is to interrupt microwave
generation as soon as the door is opened.
One of the three switches is the short-circuit switch. It monitors one of
the two other switches and actuates the appliance safety device if the
monitored switch does not function.
Switching
sequence
Open door
Close door
1.)
Safety switch on right
Short-circuit switch
2.)
Safety switch on left
Safety switch on left
3.)
Short-circuit switch
Safety switch on right
In this case the appliance is disconnected from the power supply and
can no longer be switched on.
Page 8 of 23 pages
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