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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
Memory Device: 1024-bit serial EEPROM
Internal RAM (with PCMCIA): 160 kB data
Isolation: 1780 V AC between groups
IECEx (pending)
Catalog Description: NEXA-21
REF543 | ABB REF 543 Feeder Terminal Incremental Encoder Interface Memory Device: 1024-bit serial EEPROMOverview REF543 is an ABB feeder terminal that integrates protection, control, and measurement functions for power distribution systems. Identification Product No.: REF543 Type: Feeder Terminal Manufacturer: ABB General Function Blocks INDRESET: Resets operation indicators, latched output signals, registers, and disturbance recorder waveforms MMIWAKE: Activates MMI backlight SWGRP1SWGRP20: Switchgroup functions for flexible control Measurement
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