{"product_id":"allen-bradley-1746-io8-relay-output-combination-module","title":"Allen-Bradley 1746-IO8 SLC 500 Combination Input\/Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-IO8 is a combination input\/output module designed for the SLC 500 programmable logic controller system. This module provides a space-efficient solution for applications requiring a mix of digital inputs and relay outputs within a single slot of the SLC 500 chassis. It features 4 AC input channels and 4 relay output channels, making it suitable for interfacing with various field devices such as sensors, switches, and actuators.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIntegrated I\/O: Combines 4 inputs and 4 relay outputs in a single module.\u003c\/li\u003e\n\u003cli\u003eCompatibility: Designed specifically for the Allen-Bradley SLC 500 platform.\u003c\/li\u003e\n\u003cli\u003eSignal Handling: Supports AC voltage operation for industrial control environments.\u003c\/li\u003e\n\u003cli\u003eReliable Switching: Integrated relay outputs provide isolation and high-current switching capability for field loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1746-IO8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eCombination Input\/Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e85-132V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e4 (Relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay\u003c\/td\u003e\n\u003ctd\u003e35-45 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e1.2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePower Down: Always disconnect power from the SLC 500 chassis before inserting or removing any I\/O module to prevent electrical damage or unexpected system behavior.\u003c\/li\u003e\n\u003cli\u003eESD Precautions: Handle the module by its edges and avoid touching the backplane connector pins to prevent electrostatic discharge damage.\u003c\/li\u003e\n\u003cli\u003eMounting: Ensure the module is fully seated in the chassis slot and secured using the top and bottom retaining screws to maintain proper electrical contact and mechanical stability.\u003c\/li\u003e\n\u003cli\u003eWiring: Use appropriate wire gauges for the terminal blocks and ensure all connections are tight. Route signal cables away from high-voltage power lines to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eGrounding: Ensure the SLC 500 chassis is properly grounded according to local electrical codes to provide a stable reference and noise immunity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 1746-IO8 still in production?\u003c\/strong\u003e\u003cbr\u003eNo, the 1746-IO8 has been discontinued by the manufacturer. We offer these units as refurbished or surplus spare parts to support legacy systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this module with any SLC 500 processor?\u003c\/strong\u003e\u003cbr\u003eThe 1746-IO8 is compatible with standard SLC 500 chassis-based systems. Please verify your specific processor and chassis configuration to ensure slot availability and power supply capacity.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50712626888956,"sku":"1746-IO8","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_57b2bafa-daf8-4d94-9865-fc6812ad3a3f.jpg?v=1785141576","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1746-io8-relay-output-combination-module","provider":"Electronic PLC","version":"1.0","type":"link"}