Allen-Bradley 1756-TBNH ControlLogix Removable Terminal Block
$123.00
$320.00
Description
Allen-Bradley 1756-TBNH ControlLogix Removable Terminal Block
The Allen-Bradley 1756-TBNH, also cataloged as the 1756-TBNH Removable Terminal Block, operates as a dedicated hardware component for field signal termination within ControlLogix I/O module platforms. The RTB provides a 20-position screw-clamp interface for connecting solid or stranded copper conductors to compatible 1756 I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-TBNH |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.25 lbs |
| Operating Temp | Wiring temperature rating 90 deg C or higher |
| Power Consumption | Passive terminal component, no external power consumption |
| Product Type | Removable Terminal Block (RTB) |
| Product Line | ControlLogix |
| Compatible Modules | Allen-Bradley 1756 I/O Modules |
| Number of Positions | 20 positions |
| Connection Method | Screw clamp |
| Supported Wire Type | Solid and stranded copper wire |
| Wire Size | 22 to 14 AWG |
| Maximum Conductors per Terminal | 2 conductors per terminal |
| Screw Torque | 1.36 N m |
| Screwdriver Width | 8 mm maximum |
| Spare Part / Accessory | Yes |
ControlLogix I/O Interface Characteristics
The 1756-TBNH provides a removable field wiring interface for ControlLogix I/O modules. The screw-clamp terminal structure allows field conductors to be installed or removed while maintaining a modular connection between the wiring assembly and the I/O module.
The terminal block supports I/O density scaling within ControlLogix chassis systems by providing multiple termination points in a single interface assembly. The component is configured for industrial control cabinet wiring where conductor identification, termination access, and module service procedures are required.
Firmware and ControlLogix Compatibility
The 1756-TBNH functions as a passive hardware interface and does not contain firmware or communication circuitry. Compatibility is determined by the connected 1756 I/O module mechanical and electrical interface requirements.
The terminal block operates within ControlLogix I/O architectures where EtherNet/IP deterministic networks and controller firmware configurations manage higher-level system communication.
Frequently Asked Questions (FAQ)
Q: How many wiring positions are available on the 1756-TBNH?
A: The 1756-TBNH provides 20 terminal positions for field wiring connections.
Q: What conductor types are supported by this terminal block?
A: The terminal block supports both solid and stranded copper conductors within the specified 22 to 14 AWG wire range.
Q: Does the 1756-TBNH require firmware configuration?
A: No. The 1756-TBNH is a passive removable terminal block and does not contain electronic processing or firmware.
Field Installation Guidelines
Install the 1756-TBNH on compatible ControlLogix 1756 I/O modules by aligning the terminal block with the module interface and securing the connection according to the module installation procedure.
Prepare conductors according to the specified wire size range and tighten terminal screws using the required torque value. Avoid over-tightening, which may damage terminal hardware or conductors.
Route field wiring separately from high-current power cables and switching circuits where required. Apply appropriate shielding and grounding methods for analog or noise-sensitive signals connected through the associated I/O module.
Verify terminal assignments, conductor identification, and I/O module configuration before placing the ControlLogix system into operation.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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