Allen-Bradley ControlLogix 1756-TBNH 20-Pin Screw Clamp Terminal Block
Price: Contact
Brand: Allen Bradley Vietnam
Category: Thiết bị tự động hóa
Supplier: AnhNghiSon
Origin: Mexico
0911472255Allen-Bradley 1756-TBNH
Introduction: The Allen-Bradley 1756-TBNH ControlLogix Removable Terminal Block (RTB) is a premium heavy-duty field wiring interface component engineered and manufactured 100% in Mexico by Rockwell Automation. Within high-tier ControlLogix distributed automation control loops, an RTB serves as a smart mechanical gateway, dividing raw factory floor wire leads from sensitive, internal micro-circuitry of integrated I/O modules. This essential accessory optimizes initial control cabinet wiring acceleration and provides unmatched physical flexibility during routine automation system lifecycle service.
The 1756-TBNH variant features a mid-density 20-pin contact matrix backed by a robust screw clamp termination mechanism. This heavy-duty screw architecture locks field leads in place under high mechanical holding forces, maintaining signal loop continuity despite persistent structural workshop floor vibrations or continuous plant machinery oscillations. The core engineering benefit of deploying the 1756-TBNH block is system maintenance optimization: if an underlying PLC I/O card encounters a hardware failure, field technicians can safely unlatch the intact wiring block, swap out the faulty module frame inside the chassis slot, and snap the original RTB back in place. The entire field wire array remains completely undisturbed, eliminating wire mapping tracking errors and eliminating time-consuming re-termination procedures.
⚠️ TECHNICAL INSTALLATION & CONFIGURATION PROMPT:
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The 1756-TBNH block incorporates strict mechanical guide-rail dimensions molded into its housing shell; it is designed to mate exclusively with medium-density 1756 ControlLogix cards (typically 16-point I/O profiles such as the 1756-IB16, 1756-IF16, or 1756-OF8). Do not attempt to force-mount this block onto high-density 32-point modules, which strictly require a 36-pin RTB assembly (e.g., 1756-TBCH).
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When executing wire installation, adhere strictly to the manufacturer's specified screw torque guidelines to prevent thread stripping or localized clamp cage distortion.
Key Features & Technical Specifications:
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Manufacturer: Allen-Bradley / Rockwell Automation
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Product Series: ControlLogix Removable Terminal Blocks (RTB) Hardware Family
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Model Code: 1756-TBNH
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Device Type: Removable Signal Terminal Block / Field Wiring Connector Interface
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Contact Density: 20 standard industrial terminal pin connections.
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Termination Topology: Heavy-duty integrated screw clamp mechanism, accepting standard industrial wire gauge ranges.
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Latch Mechanics: Equipped with robust dual mechanical retention clips to facilitate secure, slide-in drop locking directly onto the front face of the host I/O module.
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Material Composition: Formed from high-grade, flame-retardant industrial insulation plastics engineered to endure harsh impacts; electrical screw blocks are forged from corrosion-resistant alloys.
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Country of Origin: 100% Made in Mexico.
