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CIRCUIT BREAKER NUMBER OF POLES: 3 VOLTAGES 1(NOM) NOM: 690,000 V CURRENTS 1 (NOM) NOM: 630,000 A TYPE OF CURRENT 1 (AC/DC): AC RATED INSULATION VOLTAGE: 1000V SHORT-CIRCUIT BREAKING CAPACITY: 20KA (690 VAC) MODEL: T5N 630 PR221DS-LS/I LN=630 3P F F MANUFACTURER ABB: 1SDA054396R