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.
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