{"product_id":"allen-bradley-1794-ia16-i-o-16-channel-ac-digital-input-module","title":"Allen-Bradley 1794-IA16 FLEX I\/O 16-Channel 120V AC Digital Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1794-IA16 is a high-density, 16-channel discrete AC digital input module designed for the FLEX I\/O 1794 platform. This module serves as a critical interface between field-side 120 VAC signals and the system backplane, converting raw input states into deterministic logic for industrial control systems. It is widely utilized in distributed I\/O architectures to reduce field wiring complexity and cabling costs in applications such as material handling, water treatment, and chemical processing.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16 non-isolated input channels sharing a single common return path.\u003c\/li\u003e\n\u003cli\u003eDesigned for 120 VAC nominal input voltage (74 to 132 VAC range).\u003c\/li\u003e\n\u003cli\u003eIntegrated status diagnostics via 16 front-panel yellow LED indicators.\u003c\/li\u003e\n\u003cli\u003eLow power consumption with a 20 mA backplane current draw at 5 VDC.\u003c\/li\u003e\n\u003cli\u003eMechanical keying (Position 8) to ensure compatibility and prevent incorrect module insertion.\u003c\/li\u003e\n\u003cli\u003eCompatible with a variety of FLEX I\/O terminal bases including 1794-TB3, 1794-TB3S, and 1794-TBN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-IA16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 (Non-Isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e74 to 132 VAC (47 to 63 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current (Nominal)\u003c\/td\u003e\n\u003ctd\u003e12 mA at 120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e6.4 W at 132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rating\u003c\/td\u003e\n\u003ctd\u003e5 g at 10 to 500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Rating\u003c\/td\u003e\n\u003ctd\u003e30 g (Operational)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the system power is disconnected before installing or removing the module from the terminal base.\u003c\/li\u003e\n\u003cli\u003eMount the module onto a compatible 1794 terminal base; ensure the mechanical keyswitch is set to position 8.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for field inputs to minimize electromagnetic interference (EMI) in high-noise industrial environments.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance for ventilation to ensure the module operates within the specified 0 to 55 degC temperature range.\u003c\/li\u003e\n\u003cli\u003eVerify that the terminal base is properly grounded according to local electrical codes to ensure signal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Does the 1794-IA16 module include a terminal base?\u003c\/strong\u003e\u003cbr\u003eA: No, the 1794-IA16 is a plug-in module. It requires a separate 1794 terminal base (such as the 1794-TB3 or 1794-TB3S) for field wiring connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this module for DC input signals?\u003c\/strong\u003e\u003cbr\u003eA: No, the 1794-IA16 is strictly designed for 120 VAC discrete input signals. Using it with DC voltage may damage the module or result in improper operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the mechanical keying?\u003c\/strong\u003e\u003cbr\u003eA: The keyswitch prevents the insertion of incompatible modules into the terminal base, protecting the system from electrical faults caused by voltage mismatches.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51028047724796,"sku":"1794-IA16","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_e5928eda-09b4-44b3-a710-dda328ae36d1.jpg?v=1787941454","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1794-ia16-i-o-16-channel-ac-digital-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}