{"product_id":"1756-ob16i-allen-bradley-controllogix-16-point-isolated-output-module","title":"1756-OB16I Allen-Bradley ControlLogix 16-Point Isolated Output Module","description":"\u003ch3\u003eModule Architecture \u0026amp; Hardware Profile\u003c\/h3\u003e\n\u003cp\u003eEngineered by Rockwell Automation, the \u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003e1756-OB16I\u003c\/span\u003e is a high-density digital output module built for the \u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eControlLogix\u003c\/span\u003e platform. It accommodates 16 individually isolated sink\/source channels operating across a 10-30V DC range. Requiring a single chassis slot, it interfaces via compatible 36-pin Removable Terminal Blocks like the 1756-TBCH or 1756-TBS6H.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Electrical Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\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 \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003e1756-OB16I\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1756-controllogix\"\u003e\u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003eControlLogix\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIsolated DC Discrete Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\/24V DC Sink\/Source (10-30V DC Operating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 Individually Isolated Points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 A @ 30 °C \/ 1 A @ 60 °C per point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e350 mA @ 5.1V DC \/ 2.5 mA @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250V Continuous (Outputs-to-Backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFault Detection \u0026amp; Channel Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe unit features 16 front-panel status indicators mapping directly to active output channels. Programmers can configure individual safe states—such as Hold Last State, On, or Off—triggered during CPU transition to Program or Faulted modes. While onboard circuit protection is minimal, external quick-acting fuses (such as SOC MQ2-4A) protect against high inrush events.\u003c\/p\u003e\n\u003ch3\u003eGlobal PLC Spare HUB Insight \u0026amp; Field Implementation\u003c\/h3\u003e\n\u003cp\u003eGlobal PLC Spare HUB field specialists emphasize that when driving inductive actuators like heavy solenoids or horns, installing external freewheeling diodes or surge suppression blocks is vital to prevent contact degradation. Ensuring proper linear derating calculations prevents thermal overload when ambient cabinet temperatures approach the 60 °C threshold.\u003c\/p\u003e\n\u003ch3\u003eTarget Equipment \u0026amp; Industrial Applications\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003e1756-OB16I\u003c\/span\u003e excels in complex automation nodes requiring mixed potential voltages across independent circuits. Typical applications include high-speed packaging lines, automated material handling systems, municipal pumping infrastructure, and heavy manufacturing safety interlock panels.\u003c\/p\u003e\n\u003ch3\u003eFulfillment, Shipping \u0026amp; Warranty Assurance\u003c\/h3\u003e\n\u003cp\u003eWe dispatch all orders within 24 to 48 hours globally. Reliable logistics partners include FedEx, UPS, and DHL. Each \u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003e1756-OB16I\u003c\/span\u003e module is fully backed by our standard 12-month replacement warranty.\u003c\/p\u003e\n\u003ch3\u003eSelection Guide \u0026amp; Engineering Checklist\u003c\/h3\u003e\n\u003cp\u003eVerify that your local or remote 1756 chassis has an available single slot and adequate 5V backplane power capacity. Confirm your wiring architecture aligns with either independent isolated voltage loops or a common bus configuration, and select matching 36-pin terminal blocks prior to system startup.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of channel-to-channel isolation on the \u003cspan style=\"color: #0056b3; font-weight: bold;\"\u003e1756-OB16I\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It allows each of the 16 outputs to connect to completely separate external DC voltage sources without electrical cross-interference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I handle inductive loads safely with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Always install an external surge suppression device or flyback diode across inductive loads to absorb high reverse voltage spikes during turn-off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the output states be customized during a controller fault condition?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, you can configure individual points to hold their last state, turn explicitly on, or switch off when the processor enters a fault or program mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What removable terminal blocks are compatible with this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module accepts standard 36-pin RTBs, specifically models 1756-TBCH and 1756-TBS6H.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does ambient temperature affect the module's current capacity?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Output current derates linearly from 2 Amps per point at 30 degrees Celsius down to 1 Amp per point at 60 degrees Celsius.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013900394678,"sku":"1756-OB16I","price":153.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1756-OB16I-3.jpg?v=1788938867","url":"https:\/\/www.plcsparehub.com\/products\/1756-ob16i-allen-bradley-controllogix-16-point-isolated-output-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}