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"HW123NSFB4 (ACB, 1250A, 65KA Icu, No Earth Leakage Protection) The HW123NSFB4 is a 1250A-rated three-pole air circuit breaker designed for large-scale industrial and utility power distribution systems. It provides an Icu of 65KA, ensuring efficient short-circuit fault clearing. This model does not include earth leakage protection, making it suitable for applications requiring independent ground fault monitoring."
Hager
