Which of the lettered components shown in the illustration indicates the high pressure cutout? GS-RA-12 Illustration GS-RA-12: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option D — X

Component X in standard marine refrigeration diagrams represents the high-pressure safety cutout switch. It senses compressor discharge pressure and trips the electrical control circuit to stop the compressor if condensing pressures exceed safe operational thresholds due to fouled condensers.