1756-TBCH Product datasheet  

1756-TBCH Functional Description

The Allen-Bradley 1756-TBCH Terminal Block is a 36-pin Removable Terminal Block (RTB) designed for use with 1756 I/O modules in the ControlLogix system. It provides a flexible and modular wiring solution for connecting field devices to I/O modules, simplifying installation and maintenance. The Allen-Bradley 1756-TBCH Terminal Block plugs directly into the front of an I/O module and allows for easy wiring without the need to modify the module itself.

This RTB supports both single and double wire connections, with wire sizes ranging from 0.33 to 2.1 mm² (22 to 14 AWG) for single wires, and 0.33 to 1.3 mm² (22 to 16 AWG) for double wires. It is compatible with solid or stranded copper wire rated at 90°C (194°F) or higher. The recommended torque for wire termination is 0.5 Nm, and the terminal block is designed to accommodate up to two conductors per terminal. Its compact dimensions (5.51 x 4.41 x 5.71 inches) make it suitable for various industrial environments.

The Allen-Bradley 1756-TBCH Terminal Block is intended for use in clean, dry environments with a temperature range of 0-60°C and can withstand an operating shock of up to 30g. It is an essential accessory for all ControlLogix I/O modules, as each module requires a removable terminal block to connect the field wiring. The Allen-Bradley 1756-TBCH Terminal Block can be easily swapped with modules without needing to rewire the connections, saving time during troubleshooting and maintenance.

This terminal block is compatible with a wide range of 1756 I/O modules, such as the 1756-IA16I, 1756-IB16D, and 1756-OB16IEF, among others, providing flexibility for various industrial applications.

In summary, the Allen-Bradley 1756-TBCH Terminal Block offers a reliable and efficient solution for modular wiring in the ControlLogix system, ensuring seamless integration and easy maintenance of industrial control systems.