{"product_id":"allen-bradley-1440-rex00-04rd-xm-441-expansion-relay-module","title":"Allen-Bradley 1440-REX00-04RD XM-441 Expansion Relay Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #d35400;\"\u003e\u003cstrong\u003eAllen-Bradley 1440-REX00-04RD\u003c\/strong\u003e\u003c\/span\u003e functions as a high-performance \u003cstrong\u003eXM-441 expansion relay module\u003c\/strong\u003e. It expands the capacity of any \u003cstrong\u003eXM measurement module\u003c\/strong\u003e or the \u003cstrong\u003eXM-440 master relay module\u003c\/strong\u003e by adding four independent relays. This integration enables users to configure complex wired alarms or initiate ad-hoc industrial processes based on real-time data. The host module manages all logic, latching, and time delays for the unit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: \u003cspan style=\"color: #2980b9;\"\u003e\u003cstrong\u003eAllen-Bradley\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series\u003c\/strong\u003e: \u003cspan style=\"color: #2980b9;\"\u003e\u003cstrong\u003eXM Series\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number\u003c\/strong\u003e: \u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003e1440-REX00-04RD\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Configuration\u003c\/strong\u003e: 4 DPDT relays (two Form C contacts per relay)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Rating\u003c\/strong\u003e: 250V AC, 50\/60 Hz at 3A resistive load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response\u003c\/strong\u003e: Optimized for standard industrial signal processing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e: 24V DC input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: 2.9W (9.9 BTU\/hour) maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: Designed for standard industrial cabinet environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e: Requires protective enclosure (IP rated) against dust and humidity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Immunity\u003c\/strong\u003e: 4 kV contact discharge; 8 kV air discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 97 x 94 x 94 mm (3.8 x 3.7 x 3.7 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.56 lbs (0.26 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation and Maintenance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Install inside a protective cabinet to prevent damage from heat, dust, or moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring\u003c\/strong\u003e: Use shielded cables for signal connections to mitigate harmonics and external interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabling\u003c\/strong\u003e: Power and relay connections accept standard unshielded wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling\u003c\/strong\u003e: Forced ventilation is recommended for dense cabinet configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance\u003c\/strong\u003e: Designed for easy accessibility within standard DIN-rail or panel layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Fully compatible with \u003cstrong\u003eXM-440 master relay modules\u003c\/strong\u003e and various \u003cstrong\u003eXM measurement modules\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability\u003c\/strong\u003e: The host module monitors relay status, enabling proactive fault detection and system reporting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: Built to meet global industrial standards for reliability and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003e1440-REX00-04RD\u003c\/strong\u003e\u003c\/span\u003e is an essential asset for machinery protection and condition monitoring systems. Our technical experts recommend this module for operators requiring scalable alarm logic without replacing existing measurement hardware. It integrates seamlessly into legacy \u003cstrong\u003eXM series\u003c\/strong\u003e architectures, providing the reliability required for critical motor and rotating equipment monitoring.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePurchase Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping\u003c\/strong\u003e: We provide fast global delivery via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Time\u003c\/strong\u003e: Orders ship within 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: This unit includes a comprehensive \u003cstrong\u003e12-month warranty\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e: 1 x \u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003e1440-REX00-04RD\u003c\/strong\u003e\u003c\/span\u003e Module; Documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the 1440-REX00-04RD with non-XM systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, this module is specifically engineered for the \u003cstrong\u003eAllen-Bradley XM series\u003c\/strong\u003e measurement and master modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I resolve relay interference issues?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Always ensure signal lines utilize shielded cables to ground out external electrical noise and harmonics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the failsafe mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The failsafe (normally energized) mode ensures that the relay triggers if power is lost, providing critical safety for alarm systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module operate in high-temperature environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It must be housed in a protective cabinet with adequate airflow; excessive heat may degrade the printed circuit board over time.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eChoose the \u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003e1440-REX00-04RD\u003c\/strong\u003e\u003c\/span\u003e if you need to expand your existing \u003cstrong\u003eXM system\u003c\/strong\u003e alarm capacity. Verify that your host module supports the \u003cstrong\u003eXM-441 expansion protocol\u003c\/strong\u003e before installation. Ensure your power supply provides a clean 24V DC to maintain optimal relay contact longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1440-REX00-04RD.png?v=1783927475\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45258373955766,"sku":"1440-REX00-04RD","price":106.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1440-REX00-04RD.jpg?v=1783927464","url":"https:\/\/www.plcsparehub.com\/products\/allen-bradley-1440-rex00-04rd-xm-441-expansion-relay-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}