{"product_id":"allen-bradley-1746-ob8-digital-dc-output-module-reliable","title":"Allen-Bradley 1746-OB8 Digital DC Output Module - Reliable","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-OB8 is a Digital DC Output Module from the SLC 500 series, designed for high-current industrial applications. With 8 discrete outputs and a voltage range of 10-50VDC source, this module delivers robust performance in demanding environments. Its compact form factor and proven reliability make it a cost-effective choice for controlling solenoids, relays, and indicator lights. The 1746-OB8 dissipates only 6.9W total heat, contributing to energy efficiency and longer system life.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eUnderstanding key parameters helps you select the right module for your system. Below are the critical specs for the Allen-Bradley 1746-OB8:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 8 channels, each rated at 1A (or 0.5A at 60°C), with a total module current of 8A (or 4A at elevated temperature).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current (5V):\u003c\/strong\u003e 135mA, ensuring low power draw from the chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 10-50VDC source, accommodating various DC supply levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep Response:\u003c\/strong\u003e 60ms in, 2.5ms out, providing fast and predictable switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurge Current:\u003c\/strong\u003e Up to 3A for 10ms per point, handling momentary loads without failure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese specs reflect the module's suitability for high-current outputs while maintaining thermal stability. The 1746-OB8's off‑state leakage is a mere 1mA, minimizing wasted power and enhancing reliability.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-OB8 excels in automated manufacturing lines, conveyor systems, and packaging machinery. For example, in a bottling plant, its eight outputs can directly drive valves and actuators, withstanding the inrush currents of solenoid coils. The module's 60°C operating limit allows placement near hot equipment without derating. By using this module, facilities reduce downtime and replacement costs — a direct return on investment.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eAs part of the SLC 500 family, the 1746-OB8 integrates seamlessly with Allen‑Bradley SLC 500 processors (e.g., 1747‑Lxxx) and 1746 I\/O chassis. It communicates over the backplane and requires no additional configuration software for basic operation. The module is UL‑listed, CE compliant, and CSA\/C‑Tick certified, easing global system approvals. Use standard 1746 wiring connectors for quick installation.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the Allen-Bradley 1746-OB8, verify your system's backplane current capacity (135mA per module) and ensure your power supply provides 24VDC nominal (10-50VDC acceptable). This module is ideal for upgrading older 1746‑OB modules or expanding discrete output points. For genuine spare parts and competitive pricing, visit UBEST Automation (ubest101) — your trusted source for industrial automation spares.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403753189475,"sku":"1746-OB8","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-OB8_2_2.jpg?v=1785006948","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-ob8-digital-dc-output-module-reliable","provider":"PLC Source PRO","version":"1.0","type":"link"}