{"product_id":"allen-bradley-1769-ow8i-compact-i-o-relay-output-module","title":"Allen-Bradley 1769-OW8I Compact I\/O Relay Output Module","description":"\u003ch2\u003eAllen-Bradley 1769-OW8I Compact I\/O Relay Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-OW8I\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-OW8I\u003c\/strong\u003e Digital Relay Output Module, operates as a dedicated hardware component for binary electrical execution and contact closure isolation within CompactLogix and MicroLogix 1500 networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-OW8I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital Relay Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.28 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e118 mm x 35 mm x 87 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption \/ Heat Dissipation\u003c\/td\u003e\n\u003ctd\u003e2.83 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e5-265 VAC \/ 5-125 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n\u003ctd\u003e125 mA @ 5.1 VDC \/ 100 mA @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current per Point\u003c\/td\u003e\n\u003ctd\u003e2.5 A (Resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current per Module\u003c\/td\u003e\n\u003ctd\u003e16 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Distance Rating\u003c\/td\u003e\n\u003ctd\u003e8 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe hardware dictates electromechanical contact switching while enforcing group-to-group galvanic isolation across its 8 normally open points. By segmenting the points into two isolated groups of four, the architecture permits concurrent execution of distinct voltage potentials, including 120 VAC and 24 VDC, without signal degradation. The backplane bus communication velocity is maintained during high-density I\/O density scaling routines, while the physical mechanical relays ensure 0 mA off-state leakage current to eliminate false triggering of high-impedance field loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the consequences of exceeding the power supply distance rating for this module?\u003c\/p\u003e\n\u003cp\u003eA: The 1769-OW8I has a strict power supply distance rating of 8 slots. Installing the module further than 8 slots from a valid 1769 power supply will cause excessive voltage drops across the backplane, leading to intermittent logic communication failures or a failure of the internal relays to actuate.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module handle inductive loads like solenoid valves and motor starters directly?\u003c\/p\u003e\n\u003cp\u003eA: Yes, but inductive loads generate transient voltage spikes upon de-energization that can degrade the contacts. To achieve the specified electrical contact life of 100,000 cycles, external surge suppression (RC snubbers for AC loads, flyback diodes for DC loads) must be installed across the field-side inductive devices.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eTerminate all operational power to the 1769 backplane bus and field-side wiring loops before inserting or removing the hardware assembly.\u003c\/li\u003e\n\u003cli\u003eSlide the module onto the DIN rail and engage the integrated tongue-and-groove bus connectors with the adjacent 1769 module until the locking latches click.\u003c\/li\u003e\n\u003cli\u003eUtilize the Removable Terminal Block (RTB) for field wire termination, ensuring all wire stripping matches the specification limits and no loose strands bridge adjacent terminals.\u003c\/li\u003e\n\u003cli\u003eSeparate AC power distribution routing from low-voltage DC logic signaling pathways within the panel enclosure to prevent inductive noise cross-coupling.\u003c\/li\u003e\n\u003cli\u003eVerify that the total continuous current drawn through a single isolated group does not exceed structural thermal boundaries, keeping total module current under 16 A.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42870827843674,"sku":"1769-OW8I","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/390_e35fcd06-8eb6-4a5b-8f74-2ade84fabc27.jpg?v=1772420398","url":"https:\/\/www.spareoil.com\/products\/allen-bradley-1769-ow8i-compact-i-o-relay-output-module","provider":"SpareOil Automation","version":"1.0","type":"link"}