{"product_id":"allen-bradley-1790-0w8x-8-relay-output-module","title":"Allen-Bradley 1790-0W8X 8-Relay Output Module","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1790-0W8X 8-Relay Output Expansion Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e\u003c\/span\u003e This module is part of the trusted Allen-Bradley 1790 series, specifically model \u003cstrong\u003e1790-0W8X\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eRelay Configuration:\u003c\/strong\u003e\u003c\/span\u003e It integrates eight single-pole, single-throw (SPST) Form A relays. These relays are normally open (NO).\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eSwitching Capacity:\u003c\/strong\u003e\u003c\/span\u003e Each relay handles up to \u003cstrong\u003e2.0 A\u003c\/strong\u003e at \u003cstrong\u003e5-24V DC\u003c\/strong\u003e or \u003cstrong\u003e30V AC\u003c\/strong\u003e, suitable for resistive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eVoltage Drop \u0026amp; Resistance:\u003c\/strong\u003e\u003c\/span\u003e The on-state voltage drop is a low \u003cstrong\u003e0.5V maximum\u003c\/strong\u003e. Initial contact resistance starts at only \u003cstrong\u003e30 mΩ\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eResponse Time:\u003c\/strong\u003e\u003c\/span\u003e Both turn-on and turn-off delay times are a fast \u003cstrong\u003e10 milliseconds maximum\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eIsolation \u0026amp; Protection:\u003c\/strong\u003e\u003c\/span\u003e Photocoupler isolation provides \u003cstrong\u003e1250V AC RMS\u003c\/strong\u003e between I\/O and logic circuits for safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGeneral Performance \u0026amp; Environmental Data\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e\u003c\/span\u003e The module requires a \u003cstrong\u003e24V DC nominal\u003c\/strong\u003e field power source, with an operating range from \u003cstrong\u003e19.2 to 28.8V DC\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eDurability:\u003c\/strong\u003e\u003c\/span\u003e Expect a long service life of \u003cstrong\u003e300,000 cycles\u003c\/strong\u003e with resistive loads and \u003cstrong\u003e100,000 cycles\u003c\/strong\u003e with inductive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eLeakage Current:\u003c\/strong\u003e\u003c\/span\u003e Off-state leakage current remains below \u003cstrong\u003e1.5 mA maximum\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eMinimum Load:\u003c\/strong\u003e\u003c\/span\u003e A very small minimum load of \u003cstrong\u003e100 µA at 100 mV DC\u003c\/strong\u003e ensures reliable operation for sensitive circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e75b6;\"\u003e\u003cstrong\u003eWiring \u0026amp; Indicators:\u003c\/strong\u003e\u003c\/span\u003e Connection is simple via a \u003cstrong\u003e37-pin D-shell connector\u003c\/strong\u003e. Eight green LEDs give clear status indication for each output channel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the switching current rating of each relay?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Each relay on the \u003cstrong\u003e1790-0W8X\u003c\/strong\u003e can switch up to \u003cstrong\u003e2.0 Amps\u003c\/strong\u003e at both low-voltage DC (5-24V) and 30V AC levels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I wire this output expansion module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: You connect all field device wires to the provided \u003cstrong\u003e37-pin D-shell connector\u003c\/strong\u003e. Each output has one common (COM) point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What power supply does this module need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It operates on a \u003cstrong\u003e24V DC nominal\u003c\/strong\u003e supply. The module can function correctly within a range of \u003cstrong\u003e19.2V to 28.8V DC\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is your return policy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We offer a \u003cstrong\u003e30-day return policy\u003c\/strong\u003e for unused items in original condition. Please contact our sales team to initiate a return.\u003c\/p\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47269248991490,"sku":"1790-0W8X","price":223.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1790-0W8X.jpg?v=1770284981","url":"https:\/\/www.nex-auto.com\/sr\/products\/allen-bradley-1790-0w8x-8-relay-output-module","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}