{"product_id":"756-ob16ek-allen-bradley-controllogix-digital-output-module","title":"756-OB16EK | Allen Bradley | ControlLogix Digital Output Module","description":"\u003ch2\u003eAllen-Bradley 1756-OB16EK ControlLogix Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-OB16EK\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-OB16EK\u003c\/strong\u003e digital output module, provides 16 electronically fused DC output points for ControlLogix systems, supporting deterministic switching and redundancy in industrial automation.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e1756-OB16EK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eStandard ControlLogix slot width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage Temp\u003c\/th\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003e1.32 W backplane, 4.1 W max dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Category\u003c\/th\u003e\n\u003ctd\u003e12\/24 VDC source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Range\u003c\/th\u003e\n\u003ctd\u003e10 to 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e16 points, fused (8 points\/group)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Delay\u003c\/th\u003e\n\u003ctd\u003eOff→On: 70 µs nom \/ 1 ms max; On→Off: 360 µs nom \/ 1 ms max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent Draw\u003c\/th\u003e\n\u003ctd\u003e250 mA @ 5.1 V, 2 mA @ 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent per Point\u003c\/th\u003e\n\u003ctd\u003e1 A max @ 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent per Module\u003c\/th\u003e\n\u003ctd\u003e8 A max @ 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurge Current\u003c\/th\u003e\n\u003ctd\u003e2 A for 10 ms, repeatable every 2 s @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Current\u003c\/th\u003e\n\u003ctd\u003eMin 3 mA per point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOff-State Leakage\u003c\/th\u003e\n\u003ctd\u003eMax 1 mA per point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOn-State Voltage Drop\u003c\/th\u003e\n\u003ctd\u003eMax 400 mV DC @ 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIsolation Voltage\u003c\/th\u003e\n\u003ctd\u003e250 V continuous, outputs-to-backplane, group-to-group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFusing\u003c\/th\u003e\n\u003ctd\u003eElectronic, per group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTerminal Block\u003c\/th\u003e\n\u003ctd\u003e1756-TBNH \/ 1756-TBSH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnclosure Type\u003c\/th\u003e\n\u003ctd\u003eOpen-style, IP30 equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature Code\u003c\/th\u003e\n\u003ctd\u003eT4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1756-OB16EK integrates into the ControlLogix backplane with a \u003cstrong\u003e250 mA draw at 5.1 VDC\u003c\/strong\u003e, supporting deterministic bus communication. Its 16 fused outputs allow \u003cstrong\u003eI\/O density scaling\u003c\/strong\u003e across racks, with synchronization referenced to Coordinated System Time (≤16.7 s). Electronic fusing per group ensures predictable fault isolation, while software-configurable keying provides secure module identification.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What happens to outputs during a fault condition? A: Each point can be configured to hold last state, On, or Off (default Off) during fault mode.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module provide isolation between individual outputs? A: No, isolation is provided between groups and backplane, not between individual outputs.\u003c\/p\u003e\n\u003cp\u003eQ: What removable terminal blocks are supported? A: The module supports 1756-TBNH and 1756-TBSH terminal blocks with user-defined mechanical keying.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the module in ControlLogix chassis slots with adequate airflow.\u003c\/li\u003e\n\u003cli\u003eUse 1756-TBNH or 1756-TBSH terminal blocks for wiring.\u003c\/li\u003e\n\u003cli\u003eEnsure wiring category 1 compliance for discrete DC signals.\u003c\/li\u003e\n\u003cli\u003eMaintain ambient temperature between 0 and 60 deg C during operation.\u003c\/li\u003e\n\u003cli\u003eRoute high-current conductors separately to minimize induced noise.\u003c\/li\u003e\n\u003cli\u003eVerify electronic keying configuration before commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44110731804746,"sku":"756-OB16EK","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/1756-OB32_1_002bdcbb-c0f9-4090-86ca-0b5b460eb4b3.jpg?v=1741073902","url":"https:\/\/www.topbrandsplc.com\/products\/756-ob16ek-allen-bradley-controllogix-digital-output-module","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}