{"product_id":"allen-bradley-1756-tbnh-controllogix-20-position-nema-screw-clamp-removable-terminal-block","title":"Allen-Bradley 1756-TBNH ControlLogix 20-Position NEMA Screw Clamp Removable Terminal Block","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBNH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a heavy-duty Removable Terminal Block (RTB) designed specifically for the Allen-Bradley ControlLogix I\/O platform. This 20-position NEMA screw-clamp connector provides the essential interface between field wiring and 1756 I\/O modules. It allows technicians to wire the system independently of the modules, facilitating rapid hardware replacement and commissioning. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock, ensuring secure electrical contact and long-term durability for your control cabinet.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-TBNH accommodates a wide range of industrial wiring standards:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Positions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20 Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTermination Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNEMA Screw Clamp\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWire Size Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e22 to 14 AWG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWire Material:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSolid or Stranded Copper Wire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConductor Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum 2 conductors per terminal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eScrew Torque:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.36 Nm (12 lb-in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Temperature Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e90°C (194°F) or higher\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eScrewdriver Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8 mm maximum width\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.25 lbs (0.11 kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1756 ControlLogix I\/O Modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStreamlined Hardware Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe removable design eliminates the need to disconnect individual field wires during module replacement. Technicians simply unplug the 1756-TBNH from the faulty module and seat it onto the new unit, reducing Mean Time to Repair (MTTR) from hours to seconds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust NEMA Screw Clamping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe NEMA-style screw clamps provide high mechanical retention force. This design prevents wire pull-out in high-vibration environments, solving the common problem of intermittent signal loss in heavy industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Wiring Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy supporting up to two conductors per terminal within a 22 to 14 AWG range, this RTB allows for efficient commoning of power or ground signals directly at the terminal interface. This minimizes the requirement for external distribution blocks and reduces cabinet clutter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Thermal Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 90°C temperature rating ensures the terminal block maintains its structural and electrical integrity in high-current or high-ambient temperature environments, such as those found in motor control centers or thermal processing plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 1756-TBNH supplied as a brand new original part?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We provide this RTB exclusively as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock. It arrives in its original factory condition to guarantee precise alignment and secure latching with your ControlLogix I\/O modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this terminal block support both solid and stranded wire?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1756-TBNH utilizes a versatile screw-clamp mechanism that securely grips both solid and stranded copper wire. We recommend using ferrules for stranded wire to ensure maximum contact surface area and prevent fraying.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1756-TBNH with any 1756 I\/O module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1756-TBNH is compatible with most 1756 I\/O modules that utilize a 20-position interface. However, always check the specific module’s manual, as some high-density modules require 36-pin terminal blocks (like the 1756-TBCH).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the correct torque setting for the terminal screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo ensure a gas-tight connection and prevent terminal damage, apply exactly 1.36 Nm (12 lb-in) of torque. Over-tightening may strip the screw threads, while under-tightening can lead to resistive heating and potential fire hazards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53276777545912,"sku":"1756-TBNH","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-TBNH.jpg?v=1775639243","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1756-tbnh-controllogix-20-position-nema-screw-clamp-removable-terminal-block","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}