{"product_id":"allen-bradley-1756-tbn-controllogix-removable-terminal-block","title":"Allen-Bradley 1756-TBN ControlLogix Removable Terminal Block","description":"\u003ch2\u003eAllen-Bradley 1756-TBN ControlLogix Removable Terminal Block\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-TBN\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-TBN\u003c\/strong\u003e Removable Terminal Block, operates as a dedicated hardware component for field wiring termination within ControlLogix I\/O module platforms. The RTB provides a 20-position screw-clamp interface between external wiring and compatible ControlLogix digital or analog I\/O modules.\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\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\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-TBN\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.51 x 4.41 x 5.71 in\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\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMaximum 6.19 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRemovable Terminal Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Method\u003c\/td\u003e\n\u003ctd\u003eScrew-clamp terminal connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Positions\u003c\/td\u003e\n\u003ctd\u003e20-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Modules\u003c\/td\u003e\n\u003ctd\u003eControlLogix digital and analog I\/O modules requiring RTB interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5 VDC)\u003c\/td\u003e\n\u003ctd\u003e1200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 VDC)\u003c\/td\u003e\n\u003ctd\u003e2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eOpen-style, no enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Torque\u003c\/td\u003e\n\u003ctd\u003e0.8-1 N m (7-9 lb in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, ControlLogix system certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eControlLogix I\/O Interface and Installation Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1756-TBN provides the physical termination interface between field conductors and ControlLogix I\/O modules. The removable terminal block design allows field wiring to remain connected during module replacement procedures when compatible system configurations are used.\u003c\/p\u003e\n\u003cp\u003eThe terminal block supports I\/O density scaling within ControlLogix chassis installations by providing a standardized connection point for multiple signal conductors. Proper terminal tightening torque and conductor preparation are required to maintain electrical contact integrity.\u003c\/p\u003e\n\u003cp\u003eThe component operates as part of the ControlLogix hardware architecture where module compatibility and firmware configuration are managed through the associated I\/O module and controller system.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: What type of connection does the 1756-TBN provide?\u003cbr\u003eA: The 1756-TBN uses a screw-clamp terminal connection with 20 positions for field wiring termination.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1756-TBN be used with all ControlLogix I\/O modules?\u003cbr\u003eA: The RTB is compatible with ControlLogix digital and analog I\/O modules that require this terminal block type. Module-specific RTB compatibility should be verified before installation.\u003c\/p\u003e\n\u003cp\u003eQ: What are the specified backplane current values associated with this terminal block?\u003cbr\u003eA: The specified values are 1200 mA at 5 VDC and 2.5 mA at 24 VDC.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-TBN on compatible ControlLogix I\/O modules by aligning the terminal block with the module interface and securing the connection according to the hardware installation procedure.\u003c\/p\u003e\n\u003cp\u003eTerminate field conductors using the correct wire preparation method and apply the specified screw tightening torque to prevent loose connections. Avoid excessive mechanical force on terminal points and wiring conductors.\u003c\/p\u003e\n\u003cp\u003eRoute signal wiring separately from high-current power cables and switching circuits where required by the control panel design. Apply appropriate shielding and grounding practices for analog or noise-sensitive signals.\u003c\/p\u003e\n\u003cp\u003eBefore system operation, verify terminal assignments, I\/O module configuration, and field wiring continuity through the ControlLogix engineering environment.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43649285455962,"sku":"1756-TBN","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-TBN2.jpg?v=1783913469","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-tbn-controllogix-removable-terminal-block","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}