• Allen-Bradley 1756-TBCH
  • Allen-Bradley 1756-TBCH
  • Allen-Bradley 1756-TBCH
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Allen-Bradley 1756-TBCH ControlLogix 36-Pin Removable Screw Terminal Block

Allen-Bradley 1756-TBCH ControlLogix 36-Pin Removable Screw Terminal Block

The Allen-Bradley 1756-TBCH is a 36-pin Removable Terminal Block (RTB) engineered for use with ControlLogix 1756 series I/O modules. This component serves as the primary interface between field-side wiring and...

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SKU: 1756-TBCH
Vendor: Allen-Bradley
Category: Terminal Block
Related Series:

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The Allen-Bradley 1756-TBCH is a 36-pin Removable Terminal Block (RTB) engineered for use with ControlLogix 1756 series I/O modules. This component serves as the primary interface between field-side wiring and the I/O module, facilitating efficient installation and maintenance within industrial control systems.

Features

  • 36-pin screw-clamp connection design.
  • Plugs directly into the front of compatible ControlLogix I/O modules.
  • Removable architecture allows for module replacement without disconnecting individual field wires.
  • Supports 90 degC rated wire.
  • Compatible with 3.2 mm (1/8 in.) flathead screwdrivers.

Applications

This terminal block is essential for ControlLogix deployments in diverse industrial sectors, including:

  • Water and wastewater treatment facilities.
  • Oil, gas, and petrochemical processing plants.
  • Automotive manufacturing and heavy industrial assembly.
  • Food and beverage packaging lines.

Technical Specifications

Model 1756-TBCH
Connection Type Screw-Clamp
Pin Count 36
Operating Temperature 0 to 60 degC (32 to 140 degF)
Screw Torque 0.5 Nm
Screwdriver Size 3.2 mm (1/8 in.)
Enclosure Type Open

Installation Guidelines

  • Ensure the ControlLogix chassis and power supply are properly installed and grounded before mounting the RTB.
  • For optimal cable management, begin wiring at the bottom terminals and progress upward.
  • Utilize the integrated strain relief area at the base of the RTB to secure field cables with tie wraps.
  • Always power down the system before inserting or removing the terminal block from an I/O module.
  • Ensure wire insulation is rated for 90 degC or higher with a maximum thickness of 1.2 mm.

FAQ

What is the primary function of the 1756-TBCH?

The 1756-TBCH is a removable terminal block that provides a modular connection point for field wiring to ControlLogix I/O modules, enabling quick module replacement without disturbing the wiring harness.

What type of screwdriver is required for installation?

A 3.2 mm (1/8-inch) flathead screwdriver is recommended for securing wires into the screw-clamp terminals.

Can this module be used in high-temperature environments?

The device is rated for an operating temperature range of 0 to 60 degC (32 to 140 degF). Ensure that all connected field wiring is rated for at least 90 degC.