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18-657-456-579   Siemens 18-657-456-579 Contact Finger Cluster for MA-75C1 / MA-250C1 / MA350C1 PN: 18-657-456-579 1200 Amp Contact Finger Cluster for MA-75C1 / MA-250C1 / MA350C1 Each used finger cluster will be cleaned and inspected prior to shipping. Standard lead...

Arc barriers for Allis Chalmers MA-250 and FC-500 circuit breakers in stock at our Cleveland, OH facility – ship same day.  PN: 71-112-971-001.  These ceramic arc barriers mount above the stationary contact assembly and are frequently cracked on Allis Chalmers...

Arc barriers for Allis Chalmers MA-250 and FC-500 circuit breakers in stock at our Cleveland, OH facility – ship same day.  PN: 71-112-971-001.  These ceramic arc barriers mount above the stationary contact assembly and are frequently cracked on Allis Chalmers...