Phoenix Contact 3035686 When installing multiple diode terminal blocks on the DIN rail, a spacer plate is required between them to ensure proper alignment and spacing, featuring an integrated BY255 diode with a nominal current rating of 1.5 A, utilizing a push-in connection method for a single-level connection and available in various cross-sectional ratings ranging from 0.5 mm2 to 10 mm2, identified by its gray color.