REF 54_ Product Guide - ABB Oy Distribution Automation - #51

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Feeder Terminal REF 541, REF 543, REF 545. 1MRS750443-MBG Hardware modules of REF 543 Order number REF543K_127CAAA REF543K_127CABA REF543K_129CAAA REF543K_129CABA REF543K_127AAAA REF543K_127BAAA REF543K_127AABA REF543K_127BABA REF543K_127AAAB REF543K_127BAAB REF543K_127AABB REF543K_127BABB REF543K_129AAAA REF543K_129BAAA REF543K_129AABA REF543K_129BABA REF543K_129AAAB REF543K_129BAAB 4 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 25 2 9 2 5 2 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 25 2 9 2 5 2 1 8 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 REF543K_129AABB 9 4 1 4 1 4 1 4 1 REF543K_129BABB 9 4 1 4 1 1 1 51 Analogue interface Sensor channels (current or voltage) Current transformer 1/5 A Current transformer 0.2/1 A Voltage transformer 100 V Main processor boards CPU module Power supply boards PS1: 80...246 Vdc/ac (High) PS1: 80...265 Vdc/ac (Medium) PS1: 18...80 Vdc/ac (Low) PS2: 80...265 Vdc PS2: 18...80 Vdc Digital I/O boards BIO1: threshold voltage 155 Vdc BIO1: threshold voltage 80 Vdc BIO1: threshold voltage 18 Vdc BIO2: threshold voltage 155 Vdc BIO2: threshold voltage 80 Vdc BIO2: threshold voltage 18 Vdc Analogue I/O board RTD/analogue module Display boards Graphic HMI display, fixed Graphic HMI display, external Mechanical design 1/2 enclosure Digital inputs Power outputs, single-pole Power outputs, double-pole Signal outputs (NO) Signal outputs (NO/NC) Supervised trip circuits IRF outputs RTD/analogue inputs Analogue outputs 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 4 4 1 4 4 1 4 9 4 1 4 9 4 1 4 9 4 1 4 4 1 4 4 1 4 9 4 1 4 9 4 1 4 4 1 4 4 1 4 4 1 4 9 4 1 4 9 4 1 4 9 4 1 4