Allen-Bradley 1756-TBE ControlLogix Extended Depth Terminal Block Housing
Extended Depth Housing
ControlLogix I/O Accessory
1756-TBE pdf
Place of Origin:
USA
Brand Name:
Allenbradley
Extended Depth Housing
,ControlLogix I/O Accessory
,1756-TBE pdf
AMIKON Industrial Supply
Allen-Bradley 1756-TBE
ControlLogix Extended Depth Terminal Block Housing — an extended-depth housing option for applications requiring additional wiring room around the removable terminal block.
CONTROLLOGIX ACCESSORYProduct Overview
The 1756-TBE is an extended-depth terminal block housing for the ControlLogix I/O system. It fits over a wired removable terminal block (RTB), helping protect the wiring connections when the RTB is seated on the I/O module. Rockwell Automation identifies the extended-depth housing for applications that need additional wire-routing space or use heavier-gauge wiring.
Technical Specifications
ControlLogix Extended Depth Terminal Block Housing
Published maximum wire capacity for the extended-depth housing.
Capacity values describe the documented wire-routing area of the housing, not an electrical rating.
Extended housing is required for the documented maximum wire size.
Module-front-to-chassis-back depth with the extended-depth housing installed.
These are installed system-depth measurements for cabinet and clearance planning, not standalone dimensions of the 1756-TBE housing.
Rockwell Automation UPC
Designed to fit over a wired removable terminal block.
The 1756-TBE is the extended-depth housing component, not the removable terminal block itself. RTB selection depends on the specific ControlLogix I/O module. The housing's 628 mm² wire capacity is a routing-capacity figure, not a terminal current or voltage rating.
Application & Failure Scenarios
Where It Is Used
Used around wired removable terminal blocks in ControlLogix I/O installations where the standard housing does not provide enough room for the required wire routing, or where heavier-gauge field wiring is involved.
Why Customers Search for It
Typical sourcing situations include a missing, damaged, or unsuitable housing, or a panel modification that requires more space for routing field wires. A missing or poorly fitted housing can leave terminal wiring less protected and complicate maintenance.
Installation Notes
Rockwell Automation's installation instructions describe aligning the housing grooves with the RTB side edges and sliding the RTB into the housing until it snaps into place. Follow the instructions for the specific I/O module and RTB in use.
When planning cabinet clearance, allow for the documented 157.43 mm (6.198 in.) depth from the module front to the chassis back with the extended-depth housing. Before connecting or disconnecting an RTB, observe the applicable safety instructions. Connecting or disconnecting an RTB with field-side power applied can create an electric arc.
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Frequently Asked Questions
Is the 1756-TBE itself an electrical terminal block?
When is an extended-depth housing required?
What is the wire capacity of the 1756-TBE?
How much extra installation depth does the 1756-TBE require?
Does the 1756-TBE connect directly to the ControlLogix module?
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