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ACH550-BC and ACH550-VC Input Circuit Breaker Supplement

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This supplement provides updated maximum wire size and tightening torque specifications for input circuit breakers in certain ACH550-BC and ACH550-VC drive units, specifically when using ABB T2H or T4H circuit breakers. It details the transition from older ABB T1N and T3N breakers to the newer T2H and T4H models, including applicable voltage and horsepower ranges.

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