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Colored Terminal Blocks

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COLORED TERMINAL BLOCKS AND COMMON FUNCTIONS APPLICATION NOTE October 2006 New Information COLORED TERMINAL BLOCKS AND COMMON FUNCTIONS Colored terminal blocks are offered for quick identification of voltage, current, or particular circuits. Eaton offers a wide selection of colors with the XB Series IEC Terminal Blocks. Additional colors available on request and may require a minimum order of approximately 3000 pieces. TABLE 1. TYPICAL COLORS AND COMMON USE IN INDUSTRY COLOR DESCRIPTION Orange Data collection circuits (digital) Blue DC control circuits (analog) or intrinsically safe Gray/Violet PLC inputs and outputs Yellow Externally fed circuits (interlocks) Green Ground circuits Red AC control circuits Black Common or AC/DC power circuits White Neutral circuits Brown Miscellaneous circuits Reproduced with permission of Eaton Corporation. Z-157