{"product_id":"allen-bradley-1790-t0a8x-industrial-automation-module-reliable","title":"Allen-Bradley 1790-T0A8X Industrial Automation Module - Reliable","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1790-T0A8X is a 120V AC 8 Output Base Module designed for industrial control systems that require reliable switching of AC loads. This module provides eight nonisolated output points, each capable of handling load voltages from 15 to 132V AC rms and a maximum load current of 0.5A rms. With a compact form factor and straightforward wiring, the 1790-T0A8X integrates seamlessly into existing automation architectures, offering dependable performance for a variety of applications.\u003c\/p\u003e\u003cp\u003eBuilt with photocoupler isolation between I\/O and logic, the 1790-T0A8X ensures safe operation while maintaining signal integrity. The module includes 8 green status indicators for quick visual diagnostics, and its terminal block (M3.0) simplifies field wiring. Whether you are upgrading legacy systems or designing new control panels, the 1790-T0A8X delivers the robustness and precision required for demanding industrial environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe following table outlines the key electrical and mechanical specifications of the Allen-Bradley 1790-T0A8X, sourced directly from the manufacturer's data:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs per expansion module\u003c\/td\u003e\n\u003ctd\u003e8 points nonisolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad voltage range\u003c\/td\u003e\n\u003ctd\u003e15…132V rms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad current, max\u003c\/td\u003e\n\u003ctd\u003e0.5 A rms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad current, min\u003c\/td\u003e\n\u003ctd\u003e10 mA rms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-state leakage current, max\u003c\/td\u003e\n\u003ctd\u003e1.0 mA rms @ 100V rms 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-state voltage drop, max\u003c\/td\u003e\n\u003ctd\u003e1.3V rms @ max load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperate time, max\u003c\/td\u003e\n\u003ctd\u003e1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease, max\u003c\/td\u003e\n\u003ctd\u003e1\/2 cycle + 1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation resistance\u003c\/td\u003e\n\u003ctd\u003eMin 1,000 MΩ (for input-output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric strength\u003c\/td\u003e\n\u003ctd\u003e2500V rms 1 minute (for input-output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003e8 green input status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon type\u003c\/td\u003e\n\u003ctd\u003e8 points\/8 COM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal AC power supply – Supply voltage\u003c\/td\u003e\n\u003ctd\u003e110V rms, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage range\u003c\/td\u003e\n\u003ctd\u003e15…132V rms, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower dissipation\u003c\/td\u003e\n\u003ctd\u003e5.2 W @ rated current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation I\/O to logic\u003c\/td\u003e\n\u003ctd\u003ePhotocoupler isolation, 1250V ac rms\/V ac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField power isolation\u003c\/td\u003e\n\u003ctd\u003eNon-isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring\u003c\/td\u003e\n\u003ctd\u003eTerminal block (M3.0), screw torque: 7 lb-in max (use copper or copper-clad aluminum conductors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.00 lbs (1.36 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1790-T0A8X excels in applications where reliable AC output switching is critical. In packaging lines, it controls solenoid valves and motor starters, ensuring precise timing and repeatability. In HVAC systems, the module manages fans and dampers, maintaining optimal environmental conditions. Additionally, in material handling equipment, the 1790-T0A8X drives conveyor motors and warning lights, contributing to smooth operations and enhanced safety.\u003c\/p\u003e\u003cp\u003eBecause the module supports a wide load voltage range (15…132V AC) and offers fast operate time (1 ms), it suits high-cycle applications where rapid response is essential. Its robust isolation and dielectric strength (2500V AC) provide an extra layer of protection in electrically noisy environments, reducing the risk of false triggering and equipment damage.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eWiring the 1790-T0A8X is straightforward. Connect 120V AC field power to V AC (pin 1) and COM (pin 2). Note that all V AC pins are internally connected, as are all COM pins, simplifying daisy-chaining. Use copper or copper-clad aluminum conductors and tighten terminal screws to a maximum torque of 7 lb-in to ensure secure connections.\u003c\/p\u003e\u003cp\u003eMount the module on a standard DIN rail or panel, ensuring adequate ventilation for heat dissipation. The module's compact design allows for high-density mounting, but maintain a minimum clearance of 50 mm above and below for airflow. Verify that the external AC power supply meets the specified voltage range (15…132V AC, 60 Hz) before energizing the module.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine maintenance of the 1790-T0A8X is minimal but essential for long-term reliability. Periodically inspect the terminal block connections for tightness and signs of corrosion. Check the status indicators to confirm proper operation; a green light on each output indicates an active channel. In dusty or humid environments, clean the module enclosure with a dry, lint-free cloth to prevent contamination.\u003c\/p\u003e\u003cp\u003eBecause the module uses photocoupler isolation, it is inherently protected against voltage spikes and transients, reducing wear on internal components. With proper care, the 1790-T0A8X offers years of dependable service, minimizing downtime and lowering total cost of ownership.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1790-T0A8X is part of the Allen-Bradley 1790 series, designed to work with a wide range of industrial controllers and I\/O systems. It integrates easily with Allen-Bradley Programmable Logic Controllers (PLCs) and can be used in distributed I\/O configurations. The module's 8-point output configuration is compatible with standard wiring practices, making it a versatile choice for both new installations and retrofits.\u003c\/p\u003e\u003cp\u003eWhen integrating the 1790-T0A8X into an existing system, verify that the controller's output addressing matches the module's channel mapping. The module's nonisolated outputs are suitable for applications where all outputs share a common return, simplifying wiring and reducing component count.\u003c\/p\u003e\u003ch2\u003eBuying Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing the 1790-T0A8X, confirm your system's voltage and current requirements against the module's specifications. Ensure your load is within the 15…132V AC range and does not exceed 0.5A per channel. Also, verify that your controller supports the module's wiring configuration and that you have the necessary terminal blocks and conductors.\u003c\/p\u003e\u003cp\u003eFor genuine Allen-Bradley 1790-T0A8X modules and expert technical support, consider sourcing from PLC Source PRO. Their extensive inventory and knowledgeable staff help you select the right components for your automation needs, ensuring compatibility and reliability.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44453632376931,"sku":"1790-T0A8X","price":232.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1790-0B16X_bc68e9d5-4f50-46f6-a076-9d2b224cbef1.jpg?v=1786106691","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/allen-bradley-1790-t0a8x-industrial-automation-module-reliable","provider":"PLC Source PRO","version":"1.0","type":"link"}