{"product_id":"allen-bradley-1746-ih16-16-channel-125v-dc-sinking-input-module","title":"Allen-Bradley 1746-IH16 SLC 500 16-Point 125V DC Sinking Input Module","description":"\u003cp\u003eThe Allen-Bradley 1746-IH16 is a high-density DC digital input module designed for use within the SLC 500 programmable controller system. This 16-point input module is engineered for current-sinking applications, providing reliable signal monitoring for industrial automation processes requiring 125V DC logic levels.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16 isolated input channels for high-density signal integration.\u003c\/li\u003e\n\u003cli\u003eSupports a voltage range of 90-146V DC (sinking configuration).\u003c\/li\u003e\n\u003cli\u003eOptimized signal delay of 9 milliseconds for stable input processing.\u003c\/li\u003e\n\u003cli\u003eLow off-state current of 0.8 milliamps to prevent false triggering.\u003c\/li\u003e\n\u003cli\u003eCompact SLC 500 form factor for efficient rack-space utilization.\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\u003e1746-IH16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Points\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e125V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e90-146V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd\u003e85 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay\u003c\/td\u003e\n\u003ctd\u003e9 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current\u003c\/td\u003e\n\u003ctd\u003e0.8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 rack power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eInsert the module into any available slot in the SLC 500 chassis; ensure the module is fully seated and the locking tab is engaged.\u003c\/li\u003e\n\u003cli\u003eVerify that wiring is routed away from high-voltage AC lines or high-EMI sources to minimize signal noise.\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauges and ensure all terminal connections are secure to prevent intermittent contact.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate airflow around the chassis to prevent overheating during continuous operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is suitable for various industrial monitoring tasks in the SLC 500 ecosystem, including interfacing with high-voltage DC sensors, proximity switches, and control panel pushbuttons that require a sinking input configuration.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 1746-IH16 compatible with standard SLC 500 racks?\u003c\/strong\u003e Yes, this module is designed specifically for the Allen-Bradley SLC 500 modular I\/O chassis.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the sinking input?\u003c\/strong\u003e A sinking input module provides the common return path for the input circuit, meaning the field device must switch the positive side of the DC supply to the input terminal.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44003661709402,"sku":"1746-IH16","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_0c84226f-a833-46fd-91d5-9b75ca65b7e1.jpg?v=1788380542","url":"https:\/\/www.spareoil.com\/products\/allen-bradley-1746-ih16-16-channel-125v-dc-sinking-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}