{"product_id":"new-allen-bradley-1734-ia4-120v-ac-sinking-digital-input-unit","title":"New Allen-Bradley 1734-IA4 120V AC Sinking Digital Input Unit","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1734-IA4\u003c\/strong\u003e is a compact, high-density \u003cstrong\u003e120 VAC Discrete Input Module\u003c\/strong\u003e manufactured by Allen-Bradley (Rockwell Automation) as part of the flexible \u003cstrong\u003ePOINT I\/O System\u003c\/strong\u003e. Engineered for distributed automation architectures, this module provides \u003cstrong\u003eFour (4) non-isolated, sinking input channels\u003c\/strong\u003e designed to convert 120 VAC discrete field signals into logic-level data for host processors. Operating across an external input supply range of 85 to 132 VAC (47–63 Hz), it mounts directly onto standard terminal bases such as the 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assemblies. Featuring a lightweight hardware net weight of \u003cstrong\u003e30.9 g (0.0309 kg \/ 1.09 oz)\u003c\/strong\u003e and key switch position 8, this open-style module offers high-density channel monitoring with an exceptionally low POINTBus backplane current draw of 75 mA at 5V DC.\u003c\/p\u003e\n\u003cp\u003eAs illustrated in the product image, the module showcases a ultra-slim, vertical slice design equipped with individual LED status indicators for Module, Network, and channel-level I\/O activity, allowing intuitive, real-time diagnostic visibility.\u003c\/p\u003e\n\n\u003ch3\u003eCore Technical Advantages\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact POINT I\/O Footprint:\u003c\/strong\u003e Highly space-efficient slice design allows high-density field wiring in constrained control enclosures, supporting both horizontal and vertical mounting orientations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Field-to-System Isolation:\u003c\/strong\u003e Rated for 240V continuous isolation (type-tested at 3250V DC for 60 seconds), protecting system-side backplane electronics from field-side voltage transients.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Channel Status Diagnostics:\u003c\/strong\u003e Individual yellow status LEDs replicate field input energization state, alongside dedicated visual LEDs for overall Module Status (MS) and Network Status (NS).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeyed Terminal Base Insertion:\u003c\/strong\u003e Configured for Mechanical Key Switch Position 8, preventing accidental insertion of incorrect module types into designated wiring bases during field maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eParameter Attribute\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eFactory Specification Data\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eBrand \/ Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eCatalog \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e1734-IA4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eProduct Family Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePOINT I\/O System\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eNumber \/ Type of Inputs\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFour (4) Non-Isolated, Sinking Digital AC Inputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e120 VAC @ 50\/60 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e85..132 VAC, 47..63 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eOn-State Voltage \/ Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e65..132 VAC | 4.0 mA @ 65V to 8.5 mA @ 132V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eOff-State Voltage \/ Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e43 VAC Maximum | 2.7 mA Maximum @ 43 VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eNominal Input Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e10.6 kΩ\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003ePOINTBus Backplane Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e75 mA @ 5.1V DC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003ePower Dissipation \/ Thermal\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e0.50 W @ 132 VAC | 1.71 BTU\/hr @ 132 VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003ePhysical Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e30.9 g (0.0309 kg \/ 1.09 oz)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e56.0 x 12.0 x 75.5 mm (2.21 x 0.47 x 2.97 in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eCompatible Base Assemblies\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eCondition \/ Warranty\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eNew \u0026amp; Original in Factory Packaging | 12-Month Warranty\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Field Maintenance Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount vertically or horizontally into compatible 1734 wiring base. Set base keyswitch to Position 8 before inserting module. Ensure 120VAC external line power remains within 85-132VAC limits.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What terminal bases are required?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatible with 1734-TB, 1734-TBS, 1734-TOP, and 1734-TOPS assemblies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the required key switch setting?\u003c\/strong\u003e\u003cbr\u003e\nA: Turn the mechanical key switch on the terminal base to Position 8.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the backplane current draw?\u003c\/strong\u003e\u003cbr\u003e\nA: Draws 75 mA maximum at 5.1V DC from the POINTBus.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52765151330436,"sku":"1734-IA4","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1734-IA4-1.jpg?v=1789220194","url":"https:\/\/www.etowonauto.com\/nl\/products\/new-allen-bradley-1734-ia4-120v-ac-sinking-digital-input-unit","provider":"Etowon Auto","version":"1.0","type":"link"}