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