1756-TBCH Allen Bradley ControlLogix Removable Terminal Block

Product Description

The Allen Bradley 1756-TBCH is a removable terminal block (RTB) designed for wiring connections on compatible Bulletin 1756 ControlLogix I/O modules. Its cage-clamp connection design supports single-wire and double-wire terminations, while the low-profile housing helps manage space at the front of the I/O module. The block provides a detachable field-wiring interface for module installation, maintenance, and replacement.

Hardware Specifications

Wiring and Connection Design

The 1756-TBCH provides the termination point for field wiring associated with a compatible ControlLogix I/O module. Its cage-clamp terminals secure conductors without relying on a conventional screw-clamp wire termination. The specified support for single-wire and double-wire connections allows wiring arrangements to follow the terminal's documented connection limits.

The specified screw torque of 0.5 Nm and screwdriver width of 3.2 mm provide reference values for the applicable fastening points and tools. Confirm the conductor type, wire size, and terminal-specific wiring requirements before installation.

Installation and Temperature Limits

The terminal block mounts on the front of a compatible I/O module, providing access to field-wiring connections. Before replacement, verify the terminal block type against the installed module and existing wiring arrangement. The listed operating temperature is 0 to 60 deg C; the storage range is -40 to 85 deg C. These values describe different conditions and should not be treated as interchangeable.

Frequently Asked Questions

Q: Which modules are compatible with the 1756-TBCH?

A: The supplied specifications identify Bulletin 1756 I/O modules as the compatible product group. Verify the exact I/O module catalog number and its required terminal block configuration before ordering.

Q: What wiring connections does the 1756-TBCH support?

A: The supplied specifications list cage-clamp terminals with support for single-wire and double-wire connections. Confirm conductor size and the permitted number of conductors per terminal for the specific wiring arrangement.

Q: What should be checked when replacing an existing 1756-TBCH?

A: Verify the full catalog number, terminal layout, conductor arrangement, and compatibility with the installed I/O module. Also confirm the applicable torque requirement and operating temperature limits before returning the assembly to service.

Other Attributes

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

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