{"product_id":"allen-bradley-1771-ow-1771-selectable-contact-output-module","title":"Allen-Bradley 1771-OW 1771 Selectable Contact Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OW\u003c\/strong\u003e is a selectable contact output hardware module designed for integration within a 1771 I\/O chassis. Functioning as a specialized switching unit, the device provides 8 outputs arranged into 4 isolated groups of 2, with each distinct group configured around its own independent common connection. Every individual output pathway is electrically isolated from the internal module logic circuitry, enabling the system to simultaneously drive separate external loads up to a maximum continuous current of 1.0A per output at rated power. Because the hardware does not contain built-in surge limiting circuitry, the \u003cstrong\u003e1771-OW\u003c\/strong\u003e must be utilized for switching resistive loads only, and it is not recommended for inductive or capacitive load setups. Logic control processing and internal relay coil energization paths are fully powered directly through the backplane of the host I\/O chassis enclosure.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndividually selectable output jumper configurations allowing each point to be customized for normally-open (N.O.) or normally-closed (N.C.) operation.\u003c\/li\u003e\n\u003cli\u003eFour isolated circuit groupings containing two output lines per group to support multi-common wiring distribution.\u003c\/li\u003e\n\u003cli\u003eElectrical isolation barriers separating field-side output contact switching loops from local backplane logic components.\u003c\/li\u003e\n\u003cli\u003eFront-mounted diagnostic array consisting of 8 status indicators that illuminate when their corresponding output relay coils are energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated switching of resistive control loops in factory production environments.\u003c\/li\u003e\n\u003cli\u003eDry contact interface routing to external input modules or low-current logic devices.\u003c\/li\u003e\n\u003cli\u003eDistributed automation control via multi-group contact isolation setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771-OW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable Contact Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs per Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 (4 groups of 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24-138V ac RMS, 24-125V dc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A per output (maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A maximum per output (at rated power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003edc: 30W per output (resistive), ac (suppressed): 30W per output (resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Contact Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003edc: 10mA @ 24V, ac: 10mA @ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperate\/Release Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5ms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBounce Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1ms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10Hz maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7 Watts (max.): 3.3 Watts (min.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.6 BTU\/hr (max.): 11.3 BTU\/hr (min.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e700mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConductors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 gauge stranded maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/64 inch insulation maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC (-40 to 185 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 to 95% (without condensation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eField Wiring Arm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771-WD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiring Arm Screw Torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-9 inch-pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector Pin\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 0 (Group 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon Return Link for Outputs 0 and 1 (Group 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 1 (Group 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 2 (Group 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon Return Link for Outputs 2 and 3 (Group 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 3 (Group 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 4 (Group 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon Return Link for Outputs 4 and 5 (Group 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 5 (Group 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 6\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 6 (Group 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon Return Link for Outputs 6 and 7 (Group 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput 7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Contact Output 7 (Group 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Power Safety:\u003c\/strong\u003e Always remove full power from the 1771 I\/O chassis backplane and the connected wiring arm before removing or installing any I\/O hardware to avoid physical injury or unexpected system operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Discharge Protection:\u003c\/strong\u003e Prior to handling the physical circuit board assembly, touch a grounded object to discharge static buildup, and avoid touching the rear backplane connector pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Plastic Keying:\u003c\/strong\u003e Mount plastic keying bands onto the chassis backplane tracking points between positions 6 and 8, and between positions 16 and 18 to lock the chosen slot exclusively for this hardware type.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Placement Limits:\u003c\/strong\u003e The module can be installed in any available I\/O chassis slot connector except for the leftmost slot position, which is strictly reserved for adapter or processor modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJumper Configuration Control:\u003c\/strong\u003e To modify factory default normally-open operation, remove the 4 side screws to open the housing covers and manually transition internal jumpers K1, K2, K3, and K4 to their N.C. positions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnect Cable Length:\u003c\/strong\u003e Restrict total field wiring interconnect runs to a maximum boundary length of 1000 feet (304.8 meters).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallel Loading Warning:\u003c\/strong\u003e Do not hook up two or more outputs in parallel in an attempt to exceed the continuous 1A power rating, as minor deviations in individual relay response times can cause a single contact to bear the entire load current.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695178772843,"sku":"1771-OW","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1771-ow-selectable-contact-output-module-cobvik3xmnl_dc17db47-761d-4d08-9ae9-47fc0d5f59fe.jpg?v=1766114220","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1771-ow-1771-selectable-contact-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}