1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block
1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block
1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block
    1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block
1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block

1756-TBSH | Allen-Bradley ControlLogix 20 Pin Spring-Clamp Block

Part #: 1756-TBSH Manufactured by: Allen-Bradley
Regular price
$69.00
Sale price
$69.00
Regular price
2 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
Allen-Bradley 1756-TBSH ControlLogix 20 Pin Spring-Clamp Removable Terminal Block with Standard Housing
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Product Description P/N: 1756-TBSH

Description / Specifications

Description 

The Allen-Bradley 1756-TBSH module is a removable terminal block for modules from the ControlLogix product line. It should only have 1 conductor wired to any of its terminals at a time in a system. The 1756-TBSH removable terminal block is a spring clamp type of removable terminal block rather than a cage clamp or NEMA clamp type of removable terminal block. This removable terminal block is flexible enough to support 20 different positions within a system. The 1756-TBSH removable terminal block has a standard depth wire capacity, which means that it can be used with standard wires but it is not recommended for use with heavy-gauge wires.

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-TBSH
Manufacturer Rockwell Automation
Module Type Terminal Block
Clamp Type Spring-Clamp
Pins 20-Pin Connection
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
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-TBSH

The Allen-Bradley 1756-TBSH provides a flexible linkage between 1756 I/O modules and plant wiring. It is an I/O module accessory that needs to be ordered separately from the module. This 20-pin spring-clamp RTB ships with a standard housing. It is part of the Bulletin 1756 Removable Terminal Block series that are plugged into the front of ControlLogix I/O modules. It is compatible with selected 1756 Series of AC Digital Inputs, AC Digital Outputs, Analog Inputs, Analog RTDs and Thermocouples, Analog Outputs, and Specialty I/O Modules.

The 1756-TBSH Removable Terminal Block comes with a standard housing and this combination allows a wire capacity of up to 336 sq. mm. It is ideal for 0.33-2.1 mm2 (22-14 AWG) solid or stranded copper wires rated at 90 °C (194 °F) or greater with a maximum insulation of 1.2 mm (3/64 inches). The standard-depth housing measures 147.91mm (5.823 inches) from the module’s front to the back of the chassis. Wiring multiple conductors on any single terminal is not advised. 

The 1756-TBSH is designed to support RIUP –Removal and Insertion Under Power. However, extreme caution should be used when working with live electricity which can be dangerous to the installer as well as to the system. Possible dangers include injuries, loss of process control, and unintended machine motion. Removing power before installation is recommended. 



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-TBSH
Question: What are the backplane current specifications for the 1756-TBSH?
Date Update:04/06/2025
Answer:
  • 5 Volts DC: 1,200 milliamps
  • 24 Volts DC: 2.5 milliamps

These ratings help in planning the system power budget for reliable operation.

Question: How does the 1756-TBSH support flexible wiring in industrial systems?
Date Update:04/06/2025
Answer:

The 1756-TBSH RTB supports standard wire sizes of 22-14 AWG (0.33-2.1 mm²) for both solid and stranded copper conductors. Its standard depth wire capacity allows secure termination of standard wires but is not recommended for heavy-gauge wires. The spring-clamp design ensures a reliable and vibration-resistant connection, which is essential for high-reliability industrial environments. This design also enables easier wiring compared to traditional screw-type terminals.

Question: Can the 1756-TBSH be removed and inserted under power?
Date Update:04/06/2025
Answer:

Yes, the 1756-TBSH supports RIUP (Removal and Insertion Under Power) functionality. This means it can be safely removed and re-inserted while the system is powered, reducing downtime during maintenance. However, users should exercise caution as live electricity poses safety hazards. It’s recommended to remove power before installation whenever possible to avoid risks.

Question: How does the 1756-TBSH connect with ControlLogix I/O modules?
Date Update:04/06/2025
Answer:

The 1756-TBSH is plugged into the front of a ControlLogix I/O module, forming a direct connection between the module and the field wiring. Its spring-clamp design allows each terminal to be securely connected to a single conductor. Multiple conductors should not be wired to a single terminal to maintain safe operation. This design simplifies module replacement and reduces wiring errors during maintenance.

Question: Is the 1756-TBSH still in production?
Date Update:04/06/2025
Answer:

Yes, according to Rockwell Automation’s product lifecycle status, the 1756-TBSH is currently classified as Active. This means it is still manufactured, fully supported, and available for use in ControlLogix installations. Users can continue to specify and install this terminal block in new or existing systems.

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-TBSH module is a removable terminal block for modules from the ControlLogix product line. It should only have 1 conductor wired to any of its terminals at a time in a system. The 1756-TBSH removable terminal block is a spring clamp type of removable terminal block rather than a cage clamp or NEMA clamp type of removable terminal block. This removable terminal block is flexible enough to support 20 different positions within a system. The 1756-TBSH removable terminal block has a standard depth wire capacity, which means that it can be used with standard wires but it is not recommended for use with heavy-gauge wires.

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-TBSH
Manufacturer Rockwell Automation
Module Type Terminal Block
Clamp Type Spring-Clamp
Pins 20-Pin Connection
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
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-TBSH

The Allen-Bradley 1756-TBSH provides a flexible linkage between 1756 I/O modules and plant wiring. It is an I/O module accessory that needs to be ordered separately from the module. This 20-pin spring-clamp RTB ships with a standard housing. It is part of the Bulletin 1756 Removable Terminal Block series that are plugged into the front of ControlLogix I/O modules. It is compatible with selected 1756 Series of AC Digital Inputs, AC Digital Outputs, Analog Inputs, Analog RTDs and Thermocouples, Analog Outputs, and Specialty I/O Modules.

The 1756-TBSH Removable Terminal Block comes with a standard housing and this combination allows a wire capacity of up to 336 sq. mm. It is ideal for 0.33-2.1 mm2 (22-14 AWG) solid or stranded copper wires rated at 90 °C (194 °F) or greater with a maximum insulation of 1.2 mm (3/64 inches). The standard-depth housing measures 147.91mm (5.823 inches) from the module’s front to the back of the chassis. Wiring multiple conductors on any single terminal is not advised. 

The 1756-TBSH is designed to support RIUP –Removal and Insertion Under Power. However, extreme caution should be used when working with live electricity which can be dangerous to the installer as well as to the system. Possible dangers include injuries, loss of process control, and unintended machine motion. Removing power before installation is recommended. 



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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