Allen-Bradley | 1756-TBNH | ControlLogix (1756 Series)

Product Description: Allen-Bradley 1756-TBNH

The Allen-Bradley 1756-TBNH is a 36-position Removable Terminal Block (RTB) with screw-clamp connections, used for wiring field devices to ControlLogix I/O modules. It includes a NEMA-style housing that provides added protection and strain relief for wiring in industrial environments. This RTB is compatible with a wide range of 1756 ControlLogix digital and analog I/O modules, offering ease of installation and maintenance with its plug-in removable format.

Key Features

• 36-position screw-clamp terminal block
• Includes hinged NEMA-style housing for protection and wire retention
• Compatible with most ControlLogix I/O modules
• Provides secure, tool-tightened wiring connection
• Designed for DIN rail-mounted ControlLogix chassis
• Facilitates fast field wiring changes without module removal
• Reusable and easily replaceable component

Technical Specifications

• Number of Positions: 36
• Connection Type: Screw-clamp
• Terminal Wire Size: 22–14 AWG (solid or stranded)
• Wire Type: Copper only
• Torque Rating: 0.8 Nm (7 lb-in)
• Housing Type: NEMA-style hinged cover with strain relief
• Operating Temperature: 0°C to 60°C
• Mounting: Attaches directly to I/O module face
• Certifications: UL Listed, CE, CSA, RoHS

Application Areas

• ControlLogix-based industrial automation systems
• Discrete and analog I/O signal wiring
• High-density I/O cabinets and field wiring termination
• OEM and process control panels
• Environments requiring protected and labeled wiring connections

Advantages

• Simplifies field device wiring to ControlLogix modules
• NEMA housing protects wiring and provides strain relief
• Allows hot-swapping of modules without disturbing field wiring
• Supports quick installation, replacement, and maintenance
• Provides consistent, reliable terminal connections in harsh environments