1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block
1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block
1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block
    1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block
1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block

1756-TBCH | Allen-Bradley ControlLogix 36 Pin Cage-Clamp Terminal Block

Part #: 1756-TBCH Manufactured by: Allen-Bradley
Regular price
$106.00
Sale price
$106.00
Regular price
6 in Stock
Condition: New-Surplus Original Box
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Product Overview
The Allen-Bradley 1756-TBCH provides modular, flexible, and durable terminal connections for ControlLogix I/O modules. Its...  Read more
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Warranty for Product #: 1756-TBCH
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Product Description P/N: 1756-TBCH

Description / Specifications

Description 

The Allen-Bradley 1756-TBCH is a ControlLogix removable terminal block (RTB) designed as a modular wiring interface for 1756 I/O modules. It is a 36-pin cage-clamp style block with standard housing, supporting secure and flexible wiring connections.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-TBCH
Manufacturer Rockwell Automation
Module Type Terminal Block
Clamp Type Screw-Clamp
Pins 36-Pin Connection
Screw Torque 0.5 Nm (4.4 lb/in)
Single Wire Connection 0.33 to 2.1 mm. sq. (22…14 AWG)
Double wire connection 0.33 to 1.3 mm. sq. (22…16 AWG)
Wire Type Solid or Stranded Wire
Max. Wire Insulation 90 °C (194 °F) or greater, 1.2 mm (3/64 in.)
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Recommended Tool Screwdriver
Enclosure None
Screwdriver width 3.2 mm (1/8 in.)
Backplane Current (5Volts) 1,200 milliamps
Backplane Current (24 Volts) 2.5 milliamps
Power Dissipation (Max) 6.19 Watts
Wire Size 20 AWG
Dimensions 5.51 x 4.41 x 5.71 inches

  

 

Information About 1756-TBCH

The 1756-TBCH is part of the Allen-Bradley ControlLogix system, functioning as a necessary accessory for field wiring of I/O modules. It features 36 screw-clamp terminals with a torque requirement of 0.5 Nm and supports both single-wire and double-wire terminations. For single-wire connections, it accommodates 22–14 AWG conductors, while for double-wire connections, it accepts 22–16 AWG conductors. The block supports both solid and stranded wires rated at 90 °C or higher with a maximum insulation of 1.2 mm. Designed for installation at the front of ControlLogix I/O modules, the RTB ensures easy maintenance and secure electrical connections. Compact in size and weighing 0.3 lbs, it can withstand an operating temperature of 0–60 °C and a shock rating of 30 g. This RTB must be ordered separately from I/O modules and is compatible with most ControlLogix modules, making it a flexible choice for modular wiring in automation systems.

Key Features:

  • Terminal Design: 36-pin cage-clamp terminal block with standard housing for reliable wiring.
  • Connection Options: Supports single-wire (22–14 AWG) and double-wire (22–16 AWG) terminations.
  • Wire Compatibility: Accepts solid or stranded copper conductors rated 90 °C or greater with 1.2 mm insulation.
  • Torque Requirement: Terminals require 0.5 Nm tightening torque using a 3.2 mm screwdriver.
  • Installation: Plugs directly into the front of ControlLogix I/O modules for field-side wiring.
  • Environmental Ratings: Operates within 0–60 °C temperature range and withstands up to 30 g shock.
  • Compact Design: Lightweight unit at 0.3 lbs with durable construction.
  • Flexibility: Compatible with most 1756 ControlLogix I/O modules for modular system integration.
  • Maintenance: Easy to remove and replace, simplifying field wiring and servicing.
  • Safety: Designed for clean and dry industrial environments with reinforced electrical standards.

The 1756-TBCH delivers the reliability and precision required for secure wiring connections in ControlLogix automation systems.


 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1756-TBCH
Question: What is the 1756-TBCH?
Date Update:29/05/2025
Answer:

The 1756-TBCH is a Terminal Block Assembly designed for use with Allen-Bradley ControlLogix I/O modules. It provides a terminal block interface for wiring field devices (such as sensors, actuators, and other I/O devices) to the system. The terminal block is used to make connections between the ControlLogix system’s I/O modules and the external wiring, ensuring safe, organized, and reliable connections.

Question: How do I wire the 1756-TBCH terminal block assembly?
Date Update:29/05/2025
Answer:

Wiring the 1756-TBCH involves connecting the terminal block assembly to the appropriate I/O modules in the ControlLogix chassis. Here’s a general step-by-step guide for wiring:

  • Install the terminal block assembly: Mount the 1756-TBCH on the chassis, aligning it with the corresponding I/O module.
  • Connect the input or output wires: Field devices (such as sensors or actuators) should be connected to the appropriate terminal blocks on the assembly.
  • Wiring the power supply: For some I/O modules, a power supply must also be connected to the terminal block assembly.
  • Secure connections: Tighten the screws on the terminal block to ensure the wiring is securely connected.
  • Check for continuity and correctness: Verify the wiring according to the module’s documentation to ensure proper signal flow and power.

Always consult the wiring diagrams in the module’s manual for more specific wiring details, as wiring configurations can vary depending on the specific I/O module used.

Question: Where can I find the manual for the 1756-TBCH?
Date Update:29/05/2025
Answer:

The manual for the 1756-TBCH terminal block assembly can be found on the Rockwell Automation website in the product documentation section under the ControlLogix I/O modules. The manual includes detailed information on the installation, wiring, and troubleshooting of the terminal block assembly. Additionally, the manual provides wiring diagrams, specifications, and guidelines for proper system setup.

Question: What is the purpose of the jumper bar on the 1756-TBCH?
Date Update:29/05/2025
Answer:

The jumper bar on the 1756-TBCH terminal block assembly is used to provide electrical continuity across different terminals for signal or power distribution. It allows you to short-circuit certain terminals to facilitate a common connection for specific signals or power sources.

For example, in digital I/O modules, the jumper bar can be used to connect multiple input or output terminals to the same voltage reference (such as common ground or 24V DC), simplifying the wiring process for the system.

The jumper bar ensures that specific I/O points share common voltage or signal reference without needing individual connections for each terminal.

Question: How do I install the jumper bar on the 1756-TBCH?
Date Update:29/05/2025
Answer:

The jumper bar is installed directly on the terminal block assembly to connect certain terminals together. To install the jumper bar:

  1. Align the jumper bar with the corresponding terminals on the terminal block assembly.
  2. Press the jumper bar into place, ensuring that it securely makes contact with the designated terminals.
  3. If you need to remove the jumper bar, simply lift it off the terminals and reposition it if necessary.

It is important to only use the jumper bar as specified in the manual, as incorrect use may cause wiring issues or affect the system’s functionality.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1756-TBCH is a ControlLogix removable terminal block (RTB) designed as a modular wiring interface for 1756 I/O modules. It is a 36-pin cage-clamp style block with standard housing, supporting secure and flexible wiring connections.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-TBCH
Manufacturer Rockwell Automation
Module Type Terminal Block
Clamp Type Screw-Clamp
Pins 36-Pin Connection
Screw Torque 0.5 Nm (4.4 lb/in)
Single Wire Connection 0.33 to 2.1 mm. sq. (22…14 AWG)
Double wire connection 0.33 to 1.3 mm. sq. (22…16 AWG)
Wire Type Solid or Stranded Wire
Max. Wire Insulation 90 °C (194 °F) or greater, 1.2 mm (3/64 in.)
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Recommended Tool Screwdriver
Enclosure None
Screwdriver width 3.2 mm (1/8 in.)
Backplane Current (5Volts) 1,200 milliamps
Backplane Current (24 Volts) 2.5 milliamps
Power Dissipation (Max) 6.19 Watts
Wire Size 20 AWG
Dimensions 5.51 x 4.41 x 5.71 inches

  

 

Information About 1756-TBCH

The 1756-TBCH is part of the Allen-Bradley ControlLogix system, functioning as a necessary accessory for field wiring of I/O modules. It features 36 screw-clamp terminals with a torque requirement of 0.5 Nm and supports both single-wire and double-wire terminations. For single-wire connections, it accommodates 22–14 AWG conductors, while for double-wire connections, it accepts 22–16 AWG conductors. The block supports both solid and stranded wires rated at 90 °C or higher with a maximum insulation of 1.2 mm. Designed for installation at the front of ControlLogix I/O modules, the RTB ensures easy maintenance and secure electrical connections. Compact in size and weighing 0.3 lbs, it can withstand an operating temperature of 0–60 °C and a shock rating of 30 g. This RTB must be ordered separately from I/O modules and is compatible with most ControlLogix modules, making it a flexible choice for modular wiring in automation systems.

Key Features:

  • Terminal Design: 36-pin cage-clamp terminal block with standard housing for reliable wiring.
  • Connection Options: Supports single-wire (22–14 AWG) and double-wire (22–16 AWG) terminations.
  • Wire Compatibility: Accepts solid or stranded copper conductors rated 90 °C or greater with 1.2 mm insulation.
  • Torque Requirement: Terminals require 0.5 Nm tightening torque using a 3.2 mm screwdriver.
  • Installation: Plugs directly into the front of ControlLogix I/O modules for field-side wiring.
  • Environmental Ratings: Operates within 0–60 °C temperature range and withstands up to 30 g shock.
  • Compact Design: Lightweight unit at 0.3 lbs with durable construction.
  • Flexibility: Compatible with most 1756 ControlLogix I/O modules for modular system integration.
  • Maintenance: Easy to remove and replace, simplifying field wiring and servicing.
  • Safety: Designed for clean and dry industrial environments with reinforced electrical standards.

The 1756-TBCH delivers the reliability and precision required for secure wiring connections in ControlLogix automation systems.


 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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