{"product_id":"allen-bradley-1756-tbch-controllogix-removable-terminal-block","title":"Allen-Bradley 1756-TBCH ControlLogix Removable Terminal Block","description":"\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe \u003cstrong\u003eAllen-Bradley 1756-TBCH\u003c\/strong\u003e is a 36-position cage-clamp removable terminal block (RTB) designed to provide reliable field-side wiring connections for \u003cstrong\u003eBulletin 1756 I\/O modules\u003c\/strong\u003e within the \u003cstrong\u003eControlLogix\u003c\/strong\u003e system architecture. This component mounts directly onto the front section of the active I\/O module, offering an interface that permits rapid system upgrades and maintenance without disconnecting independent field conductors. Enclosed in a compact, low-profile housing, the terminal block optimizes layout spacing inside tightly packed industrial marshalling cabinets and enclosures while supporting single and double wire connectivity options.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003e36-Pin Dense Layout\u003c\/strong\u003e: Accommodates high-density digital and analog I\/O wiring paths across a specialized 36-position interface.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eCage-Clamp Termination\u003c\/strong\u003e: Utilizes a high-retention cage-clamp mechanism that ensures gas-tight connections and vibration resistance.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eMulti-Conductor Routing\u003c\/strong\u003e: Full structural support for both single-wire and double-wire terminations per point to optimize cross-terminal jumps.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eLow-Profile Design\u003c\/strong\u003e: Compact mechanical footprint enables easy closing of chassis front covers and reduces enclosure depth demands.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eRemovable Operation\u003c\/strong\u003e: Plugs directly into the front of standard I\/O housings, accelerating hot-swap maintenance and replacement routines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eHigh-density digital and analog I\/O module wiring inside ControlLogix systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eProcess plant marshalling panels where swift disconnection and module hot-swapping are required.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eFactory automation systems subject to consistent ambient mechanical vibration requiring stable cage-clamp retention.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1756-TBCH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRemovable Terminal Block (RTB)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProduct Line\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eControlLogix\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eUPC\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e612598171835\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCompatible Hardware\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eBulletin 1756 I\/O Modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eClamp Mechanical Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eCage-Clamp\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eScrew Fastening Torque\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.5 Nm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eMaximum Tool Width\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e3.2 mm slotted screwdriver\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eSingle Wire Connection\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSupported\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eDouble Wire Connection\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSupported\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0 Celsius to 60 Celsius\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eStorage Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e-40 Celsius to 85 Celsius\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eUnited States \/ USA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.31 lbs (0.14 kg)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e15.2 x 5.1 x 3.8 cm (6.0 x 2.0 x 1.5 in.)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe 1756-TBCH features a high-density 36-position pitch specifically engineered for 36-pin I\/O module variants. It cannot be used interchangeably with the 20-position variants, such as the 1756-TBNH screw-clamp or 1756-TBS6H spring-clamp terminal blocks. For heavy-duty automation setups where intense vibrational forcing is an operational risk, engineers may select the alternative 36-position spring-clamp model (1756-TBSH) to prevent minor wire movement over long production cycles.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nDuring panel commissioning, a frequent field error is utilizing standard electrical screwdrivers exceeding the designated 3.2 mm threshold. Tool heads that are too wide can warp or fracture the internal cage walls, causing short circuits or degrading isolation between adjacent high-density pins. Additionally, failure to set wire termination tool torque to precisely 0.5 Nm may lead to loose contact points under continuous ambient thermal swelling, while over-tightening can strip the screw thread within the block assembly.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Isolate and completely cut all field-side auxiliary loops and source power feeds before attaching or unclamping the terminal block assembly. Inserting a wired terminal onto a live control module can cause localized voltage arcs, which can trigger control loop logic faults, permanent board failure, or combustion hazards in hazardous operational areas.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInspect the tracking alignment guides on both the front interface of the 1756 module and the internal grooves of the terminal block.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eStrip field wire ends cleanly to ensure no frayed copper strands remain exposed beyond the physical boundary of the cage plate.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInsert copper wire lines neatly into the intended cage positions, verifying whether single or double configurations match your electrical schematic layout.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eTighten each terminal screw to exactly 0.5 Nm using a calibrated torque driver fitted with a 3.2 mm slotted blade.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e5\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003ePush the fully wired block assembly smoothly onto the front pins of the I\/O module until the locking mechanism latches firmly into place.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695184965995,"sku":"1756-TBCH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-tbch-removable-terminal-block-n3ayy1b4e2s_f0eed9e5-f1db-490a-872f-240f9c3c101d.jpg?v=1766114421","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1756-tbch-controllogix-removable-terminal-block","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}