The Quantum 140 DII 330 00 Intrinsically Safe Digital Input module provides safe power to dry contact closures e.g., push buttons, selector switches, float switches, flow switches, limit switches, etc., in a hazardous area, and receives the proportional current to indicate an on/off state. The received current is converted into digital signals that is transferred to the PLC.
The following figure shows the 140 DII 330 00 module and its components.
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Model Number, Module Description, Color Code
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LED Display
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Fuse Cutouts
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Field Wiring Terminal Strip
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Removable Door
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Customer Identification Label (Fold label and place it inside door) 
