{"product_id":"allen-bradley-1734-ia4-industrial-automation-module-point-i-o","title":"Allen-Bradley 1734-IA4 Industrial Automation Module-POINT I\/O","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1734-IA4 is a discrete input module from the POINT I\/O series, engineered for distributed I\/O applications in industrial automation. This compact module provides four (4) non-isolated, sinking input channels that accept 120 VAC signals, making it a reliable choice for monitoring AC-powered devices such as limit switches, push buttons, and proximity sensors.\u003c\/p\u003e\u003cp\u003eDesigned for flexibility, the 1734-IA4 mounts directly onto a terminal base (1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS), simplifying installation and reducing panel space. Its open-style enclosure and lightweight construction (30.9 g \/ 1.09 oz) allow for easy horizontal or vertical mounting in tight enclosures.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1734-IA4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003e120 VAC Discrete Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePOINT I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of Channels\u003c\/td\u003e\n\u003ctd\u003e4 (Sinking Input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0-132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage (min\/max)\u003c\/td\u003e\n\u003ctd\u003e65 VAC \/ 132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Off-State Voltage\u003c\/td\u003e\n\u003ctd\u003e43 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current Range\u003c\/td\u003e\n\u003ctd\u003e4.0-8.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePOINTBus Current\u003c\/td\u003e\n\u003ctd\u003e75 mA @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Supply Voltage Range\u003c\/td\u003e\n\u003ctd\u003e85-132 VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e0.50 W @ 132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e3.4 BTU (max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e2.21 x 0.47 x 2.97 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30.9 g (1.09 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNone (open-style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour 120VAC Inputs:\u003c\/strong\u003e Monitor AC signals directly without external converters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSinking Wiring:\u003c\/strong\u003e Compatible with standard sink-logic PLC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact POINT I\/O Form Factor:\u003c\/strong\u003e Saves valuable panel space and simplifies system layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Mounting:\u003c\/strong\u003e Can be installed horizontally or vertically, adapting to your enclosure design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e Module status, network status, and per-channel I\/O status LEDs provide at-a-glance diagnostics.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eThe 1734-IA4 excels in applications requiring reliable AC input sensing. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Control:\u003c\/strong\u003e Detecting the position of limit switches or presence of parts in assembly lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Monitoring:\u003c\/strong\u003e Monitoring valve position feedback or level switches in chemical and food processing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Systems:\u003c\/strong\u003e Tracking product flow and verifying actuator positions on high-speed packaging equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstalling the 1734-IA4 is straightforward. Mount the module onto a compatible terminal base (1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS) until it clicks into place. Wire the AC field inputs to the terminal base per the wiring diagram, ensuring the external power supply is within the 85-132 VAC range (47-63 Hz). The module draws 75 mA from the POINTBus, so verify your power budget accordingly. No special tools are required, and the module's compact size allows for dense mounting.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eWith no moving parts and an open-style enclosure, the 1734-IA4 requires minimal maintenance. Periodic inspection of wiring connections and terminal base integrity is recommended. Keep the module free from dust and moisture to ensure optimal performance. The module's low power dissipation (0.50 W max) reduces heat buildup, contributing to long-term reliability.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eAs part of the POINT I\/O family, the 1734-IA4 integrates seamlessly with Rockwell Automation control platforms, including ControlLogix and CompactLogix systems. It communicates over the POINTBus backplane, allowing easy expansion of I\/O capacity. The module supports up to four input channels and can be used in any slot of a POINT I\/O chassis, subject to the host processor's I\/O limitations.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore ordering, confirm your system's voltage requirements and channel count. The 1734-IA4 is ideal for 120 VAC applications requiring four sinking inputs. Ensure you have the correct terminal base (sold separately) and that your power supply matches the module's input range. For detailed integration support, contact PLC Source PRO — your trusted source for genuine Allen-Bradley components.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434624381027,"sku":"1734-IA4","price":276.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1734-232ASC_65dbf48c-a50f-4749-b205-4b22a9944d58.jpeg?v=1785763490","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1734-ia4-industrial-automation-module-point-i-o","provider":"PLC Source PRO","version":"1.0","type":"link"}