Type PMI, 38-72.5 kV, up to 40 kA Power Circuit Breaker

With a large installed base and proven track record, the PMI breaker offers unequalled performance and reliability.

The 72PMI breaker principally consists of three cast aluminum single-piece tanks, each containing an interrupter unit, mounted on a galvanized steel support structure. Two bushings with removable current transformers mount atop each tank. A steel control cabinet is attached to the frame, while three spring-hydraulic mechanisms located within the cabinet deliver independent pole operation.

Documentation and downloads

Article
Breaker factory of the future - Designing a world-class breaker factory in Pennsylvania

English - 0.41 MB - pdf

Brochure
72 kV, Type PMI Circuit Breaker

English - 1.16 MB - pdf

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