Allen Bradley ControlLogix Removable Terminal Block 1756-TBCH for Input Output Modules

Description

Allen Bradley ControlLogix Removable Terminal Block 1756-TBCH for Input Output Modules

Description of Terminal Block 1756-TBCH

The Allen-Bradley 1756-TBCH is a ControlLogix Removable Terminal Block (RTB) component. This component is used as modular wiring terminal for 1756 I/O modules. This component is a 36-pin cage-clamp removable terminal block with standard housing.

The Allen-Bradley 1756-TBCH is a Removable Terminal Block (RTB) for 1756 I/O modules. It is an I/O module accessory and must be ordered separately. The 1756-TBCH provides flexibility in interconnecting 1756 I/O modules and industrial plant wiring. It plugs into the front of an I/O module.

The 1756-TBCH removable terminal block is a 36-pin cage-clamp with standard housing (wiring arm depth of 2.5 mm. sq.). When terminating signal to the RTB, the required Torque is 0.5 Nm screw torque. It is recommended to use a screwdriver with width of 3.2 mm (1/8 in.) Screwdriver width. It has dimensions of 5.51 x 4.41 x 5.71 in. and weighs 0.3 pounds. For wiring, use solid or stranded copper wire rated at 90 deg. Celsius (194 °. Fahrenheit) or greater with a gauge 1.2 mm (3/64 in.) maximum insulation must be used. In case of a single wire connection, the wire size must be 0.33 - 2.1 mm sq. (22 - 14 AWG), and for a double wire connection, the wire size must be 0.33 - 1.3 mm sq. (22 - 16 AWG). On any single terminal, do not wire more than two conductors.

Some modules that may be installed with the RTB includes 1756-IA16I, 1756-IA16IK, 1756-IA32, 1756-IA32K, 1756-IB16D, 1756-IB16DK, 1756-IB16I, 1756-IB16IK, 1756-IB16IF, 1756-IB16IFK, 1756-IB16ISOE, 1756-IB16ISOEK, 1756-IB32, 1756-IB32K, 1756-IF8, 1756-IF8K, 1756-OB16IEF, 1756-OB16IEFK, 1756-OB16IS and many other modules.

About 1756 Removable Terminal Blocks
Removable terminal blocks (RTBs) provide a flexible interconnection between your plant wiring and 1756 I/O modules. The RTB plugs into the front of the I/O module. The type of module determines the RTB you need. You can choose screw-clamp or spring-clamp RTBs.
RTBs are not shipped with I/O modules. You must order them separately. The standard housing on the front of the wiring arm is not necessarily deep enough for 2.5 mm2(14 AWG) wiring. If you plan to use 2.5 mm2 (14 AWG) wiring, also order the extended housing. For more information on Extended-Depth
Housing, see Rockwell Automation Knowledgebase article #41488, Use of the 1756-TBE Extended Terminal Housing.

Types of 1756 Removable Terminal Blocks

1756-TBE
1756-CNB
1756-TBNH
1756-TBCH
1756-N2
1756-CNB
1756-IB16
1756-IA16I
1756-DNB
1756-A13

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