Table of Contents
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Overview diagram of the semiconductor switch unit
DC+
DC-
2
1
1
DC breaker switch:
• On the left: DC+ busbar connection (default configuration, option +F322).
• On the middle: DC- busbar connection (option +F323).
• On the right: DC+ busbar connection and DC- busbar connection (option +F322 and F323).
• There are three unit sizes available: frames SS1, SSU2 and SSU3.
2
Fuses (option +F260)
DC+
+
-
DC-
2
1
Operation principle and hardware description 15
+
+
-
-
2
1
+
-
2
1
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