DTI introduced a new family of 12-kV solid-state circuit breakers with rated current from 750 to 4000 A that are drop-in replacements for mechanical circuit breakers.

These circuit breakers provide microsecond speed switching, have no moving parts or arcs, and they have low acoustic and magnetic signatures. Fully electronic, they can be programmed to open instantaneously at arbitrary currents, reset after a fault, and can be networked for coordinated switchgear operation.

Unlike systems with mechanical switches, when a DTI Solid State Circuit Breaker experiences a fault there, is minimal impact on the load because it is never exposed to high currents, high forces, and damaging energy levels. They permit more efficient power systems by eliminating design for overload penalties and are ideal for shipboard DC circuit breaker applications.