Littelfuse SE-330AU-24-01 is a conformally coated device used for resistance grounded AC systems. It operates at frequencies of 50 or 60 Hz and features relay contacts with 1 Form A, 1 Form B, or 2 Form C configurations. With fail-safe operation and a selection of IEEE device numbers, it offers flexibility for various applications. Other notable features include front-panel switch or remote N.O. contact reset options, standard harmonic filtering, and multiple supply voltage options. It also offers communication capabilities with USB and Ethernet. The device provides analog output current, GF trip time, GF trip level, and RF trip level settings. With a quick RF trip time of 12 seconds and availability of the new revision, it ensures efficient and reliable performance.