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  • 800.497.6255
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    Hours of Operation

    Mon - Fri:
    8AM - 8PM EST
    5AM - 5PM PST
    We offer after hours sales & support for outages and electrical emergencies. Call us 24/7
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Have An Emergency? Call us 24/7 at 800.497.6255

America's First Call for Commercial / Industrial Circuit Breakers & Other Electrical Parts.

Polaris Busway Catalog

ISR500 - Polaris Busway - Manufacturer Part Name: ISR500; 600V 500 MCM-4 AWG INSULATED IN LINE SPLICER/REDUCER