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nVent TBHUB12 - Interchangeable Bolt-on Hub, Fits Conduit Size 1.25, Anodized, Aluminum

nVent TBHUB12 Interchangeable Bolt-on Hub, Fits Conduit Size 1.25, Anodized, Aluminum

UPC: 783510155568


Documents & Media
Installation Instructions

Contact for Pricing

Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent TBHUB12 Interchangeable Bolt-on Hub is a high-performance conduit entry solution designed for secure and adaptable installations in industrial and commercial environments. Engineered to fit 1.25-inch conduit sizes, this anodized aluminum hub provides a durable, corrosion-resistant interface for routing cables into terminal boxes, enclosures, and control panels while maintaining critical environmental ratings. As part of nVent’s trusted portfolio of electrical infrastructure solutions, the TBHUB12 delivers uncompromising reliability, ease of installation, and long-term performance—ideal for professionals who demand precision and compliance in demanding applications. Key Features and Benefits: - **Interchangeable Design**: The TBHUB12 features a modular bolt-on configuration, allowing for quick adaptation to varying conduit sizes within its supported range (1 to 2.5 inches). This flexibility eliminates the need for multiple hub types, reducing inventory complexity and streamlining procurement for facilities and contractors. - **Premium Anodized Aluminum Construction**: Constructed from high-grade aluminum and finished with an anodized coating, the TBHUB12 offers superior resistance to corrosion, oxidation, and harsh environmental conditions. This ensures consistent performance in outdoor installations, chemical plants, marine environments, and other corrosive settings. - **Environmental Rating Integrity**: Designed to maintain IP (Ingress Protection) ratings when properly installed, the TBHUB12 safeguards against dust, moisture, and other contaminants. This makes it suitable for use in NEMA-rated enclosures, hazardous locations, and applications requiring compliance with IEC, UL, or CSA standards. - **Secure Bolt-On Installation**: The hub features a robust bolt-on mechanism that ensures a tight, vibration-resistant seal between the conduit and terminal box. This prevents cable pull-out, reduces the risk of ingress, and enhances overall system integrity—critical in high-vibration environments such as manufacturing floors or transportation hubs. - **Compatibility and Versatility**: Compatible with a wide range of terminal boxes and enclosures, the TBHUB12 supports efficient cable management and organization. It is ideal for use in power distribution panels, motor control centers, telecommunications shelters, and renewable energy installations where organized conduit routing is essential. Typical Applications: The nVent TBHUB12 is widely used across multiple industries where reliable conduit entry and environmental protection are paramount. In manufacturing plants, it facilitates clean, organized cable entry into control panels and junction boxes, reducing clutter and improving maintenance access. In commercial buildings, it supports structured cabling systems for lighting, HVAC, and security systems, ensuring compliance with building codes and fire safety standards. In renewable energy projects—such as solar farms and wind turbines—the TBHUB12 provides durable, weatherproof conduit entry points that withstand prolonged exposure to UV radiation and temperature extremes. Why Choose nVent? nVent is a global leader in electrical and thermal management solutions, known for innovation, quality, and reliability. With decades of experience in the electrical infrastructure market, nVent designs products that meet the rigorous demands of engineers, contractors, and facility managers. The TBHUB12 reflects this commitment, offering a combination of performance, durability, and ease of use that reduces installation time and minimizes long-term maintenance costs. Backed by comprehensive technical support and adherence to international standards, nVent products like the TBHUB12 are trusted in mission-critical applications worldwide. Installation and Selection Considerations: When selecting a conduit hub, professionals should consider conduit size compatibility, environmental exposure, and enclosure type. The TBHUB12’s 1.25-inch fit makes it ideal for mid-sized conduit runs, while its anodized finish ensures longevity in corrosive environments. For optimal performance, ensure proper torque during installation to maintain seal integrity and verify compatibility with local electrical codes. Always consult the terminal box manufacturer’s specifications to confirm dimensional fit and environmental rating compliance. In summary, the nVent TBHUB12 Interchangeable Bolt-on Hub is more than just a conduit entry point—it’s a critical component in building resilient, compliant, and maintainable electrical systems. Whether upgrading existing infrastructure or designing new installations, this hub delivers the performance and peace of mind that professionals demand.
  • Interchangeable Bolt-on Hub is used for easy and secure entry through the top of on terminal boxes and accommodate conduits sizes 1 to 2.5 inches, while maintaining environmental rating
  • Anodized aluminum construction for superior corrosion resistance
  • Maintains environmental ratings for dust, moisture, and contaminants
  • Secure bolt-on installation prevents cable pull-out and vibration issues
  • Compatible with NEMA-rated enclosures and hazardous locations

Specifications

Application
Power Distribution
Cable Entry
Fits 1.25" conduit
Color
Unpainted
Color
Anodized Aluminum
Finish
Anodized
Fits Conduit Size
1.25 in
Fits Conduit Size
1 in
Material
Anodized Aluminum
Material
Aluminum
Material
Aluminium
Modification Services
Yes
Mounting Type
Bolt-On
NEMA Rating
3R Weather-resistant, except dust
NEMA Rating
3r
Protection Rating
NEMA Type 3R
Series
TBHUB
Size
1.25 inches
Type
General Accessories
Type
Commercial Accessories
Weight
0.3 lb
Works With
NEMA
Package Dimensions (L x W x H)
7 IN x 5 IN x 1.25 IN
Package Dimensions (L x W x H)
17.78 cm x 12.7 cm x 3.175 cm
Package Weight (Imperial)
0.300 L
Package Weight (Metric)
0.136 kg
Interchangeable Bolt-on Hub, Fits Conduit Size 2.00, Anodized, Aluminum

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Terminal Box, SSTB, 400x600x120mm, Brushed, Stainless 304

SSTB406012

Terminal Box, SSTB, 400x600x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 400x800x120mm, Brushed, Stainless 304

SSTB408012

Terminal Box, SSTB, 400x800x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 300x400x120mm, Brushed, Stainless 304

SSTB304012

Terminal Box, SSTB, 300x400x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 400x400x120mm, Brushed, Stainless 304

SSTB404012

Terminal Box, SSTB, 400x400x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 300x600x120mm, Brushed, Stainless 304

SSTB306012

Terminal Box, SSTB, 300x600x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 150x150x120mm, Brushed, Stainless 304

SSTB151512

Terminal Box, SSTB, 150x150x120mm, Brushed, Stainless 304
Terminal Box, SSTB, 200x400x120mm, Brushed, Stainless 304

SSTB204012

Terminal Box, SSTB, 200x400x120mm, Brushed, Stainless 304

How to Install the TBHUB12 Type 3R Terminal Box

Guide for installing and wiring the TBHUB12 Type 3R Terminal Box for outdoor commercial and industrial applications.

Estimated time: 1h

Tools needed:

Screwdriver, Wire strippers, Wrench, Drill, Measuring tape

Supplies needed:

Mounting hardware, Conduit fittings, Wire connectors, Grounding hardware

  1. Select Mounting Location

    Choose a suitable outdoor location for the terminal box. Ensure the location is accessible for maintenance and protected from extreme environmental conditions not covered by the Type 3R rating. Verify that the mounting surface is sturdy and can support the weight of the enclosure and its contents.

  2. Prepare the Enclosure

    Open the removable cover of the TBHUB12 terminal box. If using an interchangeable bolt-on hub, select the appropriate size for your conduit and install it in the designated hub opening at the top of the enclosure. If knockouts are to be used for conduit entry, carefully remove the appropriate knockouts from the bottom of the enclosure using a drill or knockout punch. Consult the datasheet for specific knockout sizes.

  3. Mount the Terminal Box

    Securely mount the TBHUB12 terminal box to the chosen surface using appropriate mounting hardware. Ensure the enclosure is installed in an upright position to maintain its Type 3R rating. Verify that the mounting is firm and stable.

  4. Install Grounding

    Connect a grounding conductor to the grounding provisions inside and outside the terminal box. Use appropriate grounding hardware and ensure a secure connection to the enclosure and the grounding system. Refer to local electrical codes for specific grounding requirements.

  5. Wire the Terminal Box

    Route feeder and branch circuit wires through the installed conduit fittings or knockouts. Strip wire ends as needed according to the wire range specified for the installed lug assembly (e.g., #14-2/0 for TB100, #6-350 MCM for TB200, #4-600 MCM for TB400). Connect the wires to the distribution lugs, ensuring proper torque and connection for each wire. For specific torque values, consult the lug assembly documentation or the product datasheet. If using multiple lugs, ensure correct phase and neutral connections as per your system requirements.

  6. Finalize Installation

    Close and secure the removable cover of the terminal box. Ensure it is properly sealed to maintain the Type 3R rating. If provisions for padlocking or sealing are available, use them to secure the enclosure. Verify all connections are tight and the installation is complete.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.