The 7SJ6231-5EB02-1FG0/FF,,F: The 7SJ6231-5EB02-1FG0/FF,F is a Siemens SIPROTEC 4 7SJ62 multifunction protection relay in the 1/3 19" housing 7XP20. It's built for panel flush mounting with screw-type terminals that accept direct connection or ring-type cable lugs. The auxiliary supply covers 110 to 250 VDC or 115 to 230 VAC, with a binary input threshold at 88 VDC. This variant carries four voltage and four current measurement inputs, eight binary inputs, eight binary outputs, and one live status contact. The current inputs are rated for 1 A phase and 1 A earth (minimum 0.05 A). Fault recording is included, and the service interface is DIGSI/modem/RTD box over electrical RS485.
The 110-250 VDC / 115-230 VAC auxiliary supply range is the first thing to check against your control power. The binary input threshold of 88 VDC means the relay won't pick up on a weak DC bus; plan your trip and alarm circuits accordingly. The 1 A CT inputs (minimum 0.05 A) suit standard protection-class current transformers — if your installation uses 5 A secondaries, this isn't the right variant. Region-specific defaults are set to World, 50/60 Hz, IEC/ANSI, with English (GB) language selectable. That covers most global installations without needing a firmware reflash. The housing 7XP20 is a 1/3 19" sub-rack form factor — it takes up one-third of a standard 19" rack width, so plan your panel layout accordingly.