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  1. gardengnome747

    IEC v ANSI Low Voltage Circuit Breaker Short Circuit Ratings

    Hi All, There is a Switchboard on our project that is claimed to be rated to 65kA/1sec @ 480V as per IEC 61439. The Incomers to this Switchboard have Siemens 3VL MCCB's, and they have several short circuit ratings on the rating plate as follows; Switching Capacity As per 60947-2...

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