Overview
Manuals
Wire size
Best Practices for Installation
Features:
- Screw-clamp / cage-clamp technology
- Shipped with a standard-depth housing cover
- 0.5 N·m (4.4 lb·in) using a 3.2 mm flathead screwdriver
The 1756-TBCH detachable terminal block is designed for seamless integration with ControlLogix systems, providing the necessary connectivity solutions. This terminal block is perfectly matched with the Bulletin 1756 I/O module, enhancing the modularity of industrial automation systems. Its low-profile housing design effectively utilizes space, meeting the compact design requirements of modern control systems.
The 1756-TBCH employs a cage-like clamping system for robust cable management. This design supports single-wire and dual-wire connections, offering flexibility for various installation scenarios. It can be directly mounted on the front of the I/O module for easy maintenance and upgrades.
The 1756-TBCH Allen Bradley Removable Terminal Block (RTB) may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen Bradley 1756-TBCH Removable Terminal Block (RTB) Manuals(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Single wire connection: 0.33…2.1 mm2 (22…14 AWG) solid or stranded copper wire rated at 105 °C (221 °F), or greater, 1.2 mm (3/64 in.) insulation max. Do not wire more than one conductor on any single terminal. Double wire connection: 0.33…1.3 mm2 (22…16 AWG) solid or stranded copper wire rated at 105 °C (221 °F), or greater, 1.2 mm (3/64 in.) insulation max. Do not wire more than two conductors on any single terminal.
Wiring Sequence: Always wire from the bottom terminals (pins 35/36) upwards. This ensures unobstructed access to the top terminals and facilitates operation with hand tools.
Stress Relief: Securely fasten thick multi-core field cables with cable ties using the built-in bottom mounting slot.
Physical Keying: Mechanically connect the RTB to its designated module using the plastic keying wedges on the edge connectors. This prevents installers from accidentally plugging AC terminals into low-voltage DC or analog cards.
High-Density Cabling Considerations: If you are using the maximum gauge wire (14 AWG) on all 36 pins, the standard housing included with the 1756-TBCH may make cabling too crowded. It is recommended to replace it with a deeper housing (1756-TBE) to easily accommodate denser cabling.
