Different components, such as diodes or diodes with resistors, can be connected in parallel or in series using the DM diode modules. These diode circuits fulfil a variety of tasks in the area of electrical and electronic controls. These include: protection against polarity reversal, the electric decoupling of warning signals, spark-repression diodes for overvoltages from inductive loads such as magnet valves or DC relays, and lamp test modules for the detection and decoupling of group status messages. The modules are available in minus-pole or plus-pole designs, or as freely-switchable units.
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