Analogue signal isolator (for figure see attachment), - made of a printed circuit equipped with resistors, capacitors, diodes, integrated circuits, 1:1 transformer and fuses, in a housing with status display, electrical connections and devices for DIN rail mounting, - for galvanic isolation incoming current signals (from 4 mA - 20 mA) from the non-hazardous area to the hazardous area (characteristic main activity) as well as for signaling a wire break or short circuit. "Electrical apparatus with its own function, not elsewhere specified or included in Chapter 85 (combination of signal separator - main activity characterizing - and visual signaling apparatus), not covered by subheadings (CN) 8543 1000 - 8543 7070"
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[1][1]. DEBTI38699/20-1#699455