Allen Bradley 1756-TBNH Removable Terminal Block

Product Description

The Allen Bradley 1756-TBNH is a removable terminal block (RTB) designed for use with compatible ControlLogix 1756 I/O modules. It provides 20 wiring positions for connecting field conductors to the I/O module interface. The terminal block includes screw clamps and supports solid and stranded copper wire, allowing maintenance personnel to connect and disconnect field wiring when servicing compatible modules.

Technical Specifications

Wiring and Terminal Configuration

The 20-position terminal arrangement provides connection points for conductors associated with a compatible 1756 I/O module. The screw-clamp terminals secure the conductors mechanically, while the removable design allows the terminal block to be separated from the module without individually disconnecting every field wire.

The terminal block supports 22 to 14 AWG solid or stranded copper conductors, with a maximum of two conductors per terminal. During wiring, observe the specified screw torque of 1.36 Nm and use a screwdriver no wider than 8 mm.

Compatibility and Selection

The 1756-TBNH is identified as an accessory for Allen Bradley ControlLogix 1756 I/O modules. Before ordering a replacement, verify that the terminal block matches the specific I/O module and its terminal arrangement. The general 1756 I/O compatibility designation does not establish compatibility with every module in the family.

Frequently Asked Questions

Q: How many wiring positions does the 1756-TBNH provide?

A: It provides 20 terminal positions for field wiring to a compatible ControlLogix 1756 I/O module.

Q: What wire sizes can the 1756-TBNH accommodate?

A: It supports solid and stranded copper conductors from 22 to 14 AWG. Each terminal accepts a maximum of two conductors, subject to the applicable wiring requirements.

Q: What screw torque should be used when wiring the 1756-TBNH?

A: The supplied specifications state a screw torque of 1.36 Nm. Follow the applicable module and terminal-block documentation when preparing and securing conductors.

Other Attributes

• Series: Allen-Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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