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Bi-directionally controlled thyristors (BCT)

Bi-directionally controlled thyristors (BCT)

Thyristors are typically used as phase-controlled current valves for AC to DC conversion and vice versa, operating at low frequencies (most often around AC line frequency). In the conducting state, thyristors feature very low losses, making them attractive devices to efficiently control very high currents and energies.


All ABB Thyristors are press-pack devices. They are pressed with a relatively high force onto heat-sinks which also serve as electrical contacts to the thyristor terminals.

Part NumberVRM (V)ITAVM (A)ITSM (kA)Package* (mm)
2800243043150/100
2800263043150/100
4200192032150/100
5200180029150/100
5200198042172/110
6500140522150/100
6500158029.7172/110