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VoltConnect Pro Medium Voltage Junction Box

A New Era in Medium Voltage Connectivity

Spike Electric's VoltConnect Pro Medium Voltage Junction Box

Spike Electric VoltConnect Pro assures performance that meets and even exceeds industry standards and is UL 1008A compliant.


Welcome to the forefront of electrical innovation with Spike Electric Controls’ latest offering – the VoltConnect Pro MVJB Series. As a leader in electrical solutions, Spike Electric Controls is proud to present this state-of-the-art Medium Voltage Junction Box, meticulously engineered to set new benchmarks in safety, efficiency, and adaptability in medium voltage cable connections.

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What is a Medium Voltage Junction Box?

A Medium Voltage Junction Box (MVJB) is an integral component in modern electrical infrastructure, playing a crucial role in the management and distribution of electrical power. Designed to facilitate the connection and disconnection of medium voltage cables, these junction boxes are pivotal in ensuring the safe and efficient transmission of electricity in a range of settings. Spike Electric Controls’ VoltConnect Pro MVJB Series represents the pinnacle of innovation in this field, offering unparalleled performance, safety, and versatility.


Key Functions and Features

The primary function of an MVJB, like those in the VoltConnect Pro MVJB Series, is to provide a secure and accessible point for connecting medium voltage cables. These cables typically carry voltages ranging from 1 kV to 38 kV, making them suitable for substantial power transmission requirements. The junction boxes serve as critical nodes in an electrical network, allowing for the effective distribution of power to various sectors, including industrial, commercial, and renewable energy applications.

Spike Electric Controls’ MVJBs are designed with several key features in mind:

  • Safety: Safety is paramount in the design of any electrical component, and the VoltConnect Pro MVJB Series is no exception. These junction boxes are engineered to prevent electrical hazards, such as short circuits and overloads, ensuring the protection of both the electrical system and personnel.
  • Efficiency: The efficient handling of medium voltage power is crucial for minimizing energy loss and ensuring reliable power distribution. The VoltConnect Pro MVJB Series is designed to optimize the flow of electricity, reducing resistance and heat generation, and thereby enhancing overall system efficiency.
  • Durability: Constructed with high-quality materials and designed to withstand harsh environmental conditions, these junction boxes are built for longevity. They are resistant to corrosion, moisture, and other environmental factors that can degrade electrical components over time.
  • Customization and Flexibility: Understanding that each electrical system has unique requirements, Spike Electric Controls offers customizable options for the VoltConnect Pro MVJB Series. This flexibility ensures that each junction box can be tailored to meet specific voltage, current, and environmental needs.


Applications and Importance

Medium Voltage Junction Boxes are vital in a variety of applications. They are commonly used in:

  • Industrial Settings: Factories and plants require robust and reliable power distribution systems. MVJBs facilitate the efficient and safe distribution of power to machinery and equipment.
  • Renewable Energy: In renewable energy projects, such as wind farms and solar arrays, MVJBs are essential for connecting power generation sources to the grid.
  • Infrastructure Projects: Public utilities and infrastructure, including substations and grid connection points, rely on MVJBs for effective power distribution and management.
  • Commercial Complexes: Large commercial complexes with significant power needs use MVJBs to manage and distribute power effectively.

The Medium Voltage Junction Box is more than just a component; it’s a cornerstone of modern electrical infrastructure. Spike Electric Controls’ VoltConnect Pro MVJB Series stands at the forefront of this technology, offering solutions that are safe, efficient, and adaptable to a wide range of applications.


Different Types of VoltConnect Pro MVJB Series

Spike Electric Controls’ VoltConnect Pro MVJB Series is a testament to versatility and customization in the realm of medium voltage junction boxes. This series encompasses a diverse range of models, each meticulously designed to meet varying voltage and amperage requirements, ensuring broad compatibility across a multitude of applications.


Customization and Flexibility

A standout feature of the VoltConnect Pro MVJB Series is its unparalleled customization capabilities. Unlike some manufacturers who offer limited options, Spike Electric Controls understands that each electrical system has unique needs. We can tailor our medium voltage cable tap boxes to fit different cable configurations, providing solutions that are specifically designed for your project’s requirements. This flexibility is a significant advantage, allowing for a more efficient and effective electrical setup.


Alternative Industry Names

The VoltConnect Pro MVJB Series is known in the industry by various names, reflecting its versatility and widespread use. Some of these include:

    1. Medium Voltage Splice Box
    2. MV Cable Junction Unit
    3. Medium Voltage Cable Tap Enclosure
    4. MV Cable Branching Box
    5. Medium Voltage Cable Distribution Box
    6. MV Power Connection Box
    7. Medium Voltage Cable Interface Unit

NEMA Ratings and Hazardous Location Compatibility

Our series is available in different NEMA (National Electrical Manufacturers Association) ratings, including options suitable for hazardous locations. Upon request, we can provide models with specific NEMA ratings that are designed to withstand harsh and potentially hazardous environments, ensuring safety and reliability even in the most challenging conditions.

Unique Features and Compliance

What sets the VoltConnect Pro MVJB Series apart is its adherence to international standards and our commitment to quality testing. Each model complies with ETEL UL 1449:2021 Ed.5, ensuring global standards of safety and performance. Moreover, our in-house testing on the assembly goes above and beyond industry norms, providing an additional layer of quality assurance.

In-House Factory Acceptance Testing (FAT)

Understanding the criticality of reliable and safe operation, Spike Electric Controls offers in-house Factory Acceptance Testing (FAT) for clients. This process involves rigorous testing of the junction box in a controlled environment to ensure it meets all specified requirements before installation. This service is a testament to our commitment to delivering products that are not only compliant but also exceed expectations in terms of performance and reliability.

Post-Shipment Support

After shipment, we provide comprehensive support, including engineered drawings and Quality Assurance and Quality Control (QAQC) documents. This documentation is crucial for your team’s understanding and maintenance of the product, ensuring long-term operational efficiency and safety.

ISO 9001 Certified Manufacturer

As an ISO 9001 certified manufacturer, Spike Electric Controls adheres to the highest standards of quality management. This certification reflects our commitment to consistent quality in our products and services, customer satisfaction, and continuous improvement. Our clients can be confident that they are partnering with a manufacturer that is globally recognized for upholding stringent quality standards.


The VoltConnect Pro MVJB Series by Spike Electric Controls is not just a product line; it’s a comprehensive solution tailored to meet the diverse needs of modern electrical infrastructure. With our focus on customization, adherence to international standards, rigorous testing, and post-shipment support, we ensure that our clients receive not only a product but a complete, reliable, and efficient medium voltage junction box solution. Our commitment as an ISO 9001 certified manufacturer further cements our position as a leader in the electrical controls industry, dedicated to innovation, quality, and customer satisfaction.

The Importance of the VoltConnect Pro MVJB Series

The VoltConnect Pro MVJB Series stands as a beacon of innovation and reliability in the realm of medium voltage junction boxes. Developed by Spike Electric Controls, this series is not just a collection of products but a comprehensive solution designed to address the critical needs of modern electrical systems.

Energy Efficiency and Performance

At the heart of the VoltConnect Pro MVJB Series is its energy-efficient design. In an era where energy conservation and optimal performance are paramount, these junction boxes are engineered to minimize energy loss. This efficiency translates into reduced operational costs and a lower environmental impact, making it an ideal choice for eco-conscious businesses and projects. The series ensures that power performance is maximized, providing a reliable and consistent energy flow that is crucial for the smooth operation of various electrical applications.

Durability and Reliability

The robust construction of the VoltConnect Pro MVJB Series, featuring IP66-rated protection, ensures that each unit is capable of withstanding harsh environmental conditions. This durability is vital for long-term reliability, reducing the need for frequent maintenance or replacements. Whether it’s exposure to moisture, dust, or other environmental factors, these junction boxes are built to last, offering peace of mind and reduced downtime.

Customization for Specialized Needs

One of the most significant advantages of the VoltConnect Pro MVJB Series is its customization capability. Unlike standard, off-the-shelf solutions that may not fit specific requirements, Spike Electric Controls offers the flexibility to design and test junction boxes for multiple cables and special requirements. This adaptability is crucial for projects with unique demands or complex electrical systems.

Expert Engineering Support

Spike Electric Controls distinguishes itself with a team of qualified, degreed engineers who are ready to support clients on any request. This expertise is invaluable, especially when compared to companies that only offer non-custom, single-solution products. Our engineers work closely with clients to understand their specific needs, offering tailored solutions that go beyond mere functionality. This collaborative approach ensures that each VoltConnect Pro MVJB is not just a product but a solution, intricately designed to meet the unique challenges and requirements of each project.

The Advantage of Custom Solutions

Choosing Spike Electric Controls for your medium voltage junction box needs means opting for a partner that understands the nuances of electrical systems. Our ability to provide custom solutions is not just about delivering a product; it’s about offering a service that aligns with your specific operational needs. This bespoke approach is particularly beneficial for complex projects where standard solutions fall short. With Spike Electric Controls, clients have the assurance that their electrical infrastructure is not only efficient and reliable but also perfectly aligned with their specific requirements.


The VoltConnect Pro MVJB Series from Spike Electric Controls is more than just a series of products; it’s a commitment to excellence in electrical infrastructure. With its energy-efficient design, robust construction, customization capabilities, and expert engineering support, the series represents the pinnacle of quality and innovation in medium voltage junction boxes. Choosing Spike Electric Controls means choosing a partner dedicated to safety, reliability, sustainability, and above all, customer satisfaction in providing tailored electrical solutions.

Choosing Spike Electric Controls for Your Medium Voltage Junction Box Needs

Selecting the right manufacturer for MVJBs is crucial. Spike Electric Controls stands out with its warranty provision, ISO 9001 Certification, the expertise of degreed engineers, customization capabilities, and in-house fabrication. Our team of specialized engineers is committed to customizing and engineering products to meet your specific requirements, ensuring top-quality solutions with comprehensive support.

Technical Specifications and Applications

The VoltConnect Pro MVJB Series by Spike Electric Controls is capable of handling a maximum voltage of 38 kV and a maximum current of 1200 A. Built to IEEE standards, it is ideal for applications such as grid connections, wind turbines, renewable energy projects, and more. Our junction boxes offer features like exterior voltage indicators, custom cable connections, and interior cable stress relief brackets, ensuring versatility and efficiency in various settings.


The VoltConnect Pro MVJB Series from Spike Electric Controls is not just a product; it’s a symbol of our dedication to innovation, quality, and environmental responsibility in electrical infrastructure solutions. Join Spike Electric Controls in embracing the future of medium voltage connectivity.

    What Can You Expect?

    • Same Day Shipping
    • 24/7 Real-Time Emergency Support
    • A Global Supplying Network
    • 1-Year Guaranteed Warranty

    Spike Electric – Experts in Medium-Voltage Junction Boxes

    Spike Electric takes pride in carrying a vast and exclusive collection of medium-voltage junction boxes. We have a unique collection of switchgear from industry-leading manufacturers like Cutler-Hammer, Federal Pacific, Schneider Electric, Square D, etc. Also, our medium-voltage junction boxes are available in a variety of ratings. Walk into Spike Electric and see for yourself.

    Collaborate With Spike Electric And Experience The Best

    An Exclusive Collection Of Medium-Voltage Junction Boxes With All Advanced Features 

    We provide switchgear that will give you more. More efficient protection, more organized distribution, and hassle-free functionality. By choosing Spike Electric, you will be able to own quality switchgear components and will be able to enhance the efficiency of the energy distribution system in your facility. As an additional bonus, you will reap the benefits of having a more cost-effective electrical distribution, reduced short circuits, and longevity.

    Team Full Of Expertise And Experience

    Spike Electric has an excellent team of technicians on board. The in-house team of professionals has skilled expertise and experience in this field. They are well-trained and will closely monitor the sourcing and delivery of medium-voltage junction boxes for your industrial facility. Moreover, they will ensure that all your requirements and preferences are met promptly and perfectly. If you have a purpose in mind, then our experts will source an medium-voltage junction boxes that will perfectly align with your purpose.

    Emergency Assistance And 24×7 Technical Support

    Our target is to provide 100% customer satisfaction. Hence, our work isn’t completed before the delivery of an ideal medium-voltage junction box. We will be a consistent and trusted partner. Spike Electric will keep on offering the assistance of its expert technicians whenever an issue arises concerning the functioning of the switchgear. Our experienced in-house team of professionals will be available to provide 24×7 and assistance as long as you are in ownership of the automation control panel.

    For information on our custom medium-voltage junction boxes, request a quote today.

    Why Choose Spike Electric?

    In addition to our custom-design services, prompt delivery, easy installation, and real-time emergency support, we also have a list of other services at your disposal which make us the ideal destination for all medium-voltage junction box needs. Below are the additional services we offer.

    You can find out more about what switchboards and switchgear are or explore the different additional services we offer below:

    Upgrade Or Retrofit

    Does your industrial or manufacturing facility have old and aged medium-voltage junction boxes lying around? Well, you don’t have to dispose of them yet. While we keep stock of a wide range of quality and high-standard industrial equipment, we also buy back unwanted medium-voltage junction boxes from various facilities and units. So, if you have some unwanted medium-voltage junction boxes lying around, do get in touch with our team of experts. Our technicians will have a look at your equipment, inspect the various components, and will suggest a solution. This process of ours is aimed to save money for you and to save the environment too.

    Guaranteed Warranty

    We believe in being an ever supporting partner. Hence, our service doesn’t end with design and delivery. We ensure that every medium-voltage junction box that we deliver is of exclusive and superior quality. Our firm quality standards and principles have helped us to build long-term relationships with our customers and clients. Hence, we offer a 1-year replacement warranty for all the electric products and solutions that we deliver. You can collaborate with Spike Electric with complete confidence because we deliver not just products, but reliability and performance too.

    Our Range Of Products

    We host a wide range of industrial equipment that will cater to all your specifications and needs. We have outlined the three categories of equipment that we host.


    Our expert staff and technicians will always be able to deliver according to your individual preferences. We have a broad network of suppliers, which enable us to deliver several products and solutions. Tell us what you need and we will source it for you.


    Yes. We provide reconditioned medium-voltage junction boxes as well. We believe in delivering quality products and solutions that have reliability and longevity. Hence, our reconditioned medium-voltage junction boxes and other equipment are thoroughly inspected and will offer services that are as good as new equipment. Also, our reconditioned equipment is affordable, because while quality is high, cost needn’t be.


    With our large on-hand inventory of contactors, circuit breakers, relays, PLC, and other control products, we can help you upgrade the functionality of your control panel effectively. Replacing the old with the newsiest technology doesn’t always mean you have to completely tear out your existing panel along with the wire that has already been pulled. We can retrofit and engineer a new back panel for you with all of your components pre-wired. We will supply you with a full 3D CAD layout, a BOM of suggested upgraded components, along with wiring schematics showing you exactly how the upgrade will look. We will work with your contractor on technical questions to help ensure the old is taken out and the new replaced properly.

    "We provide our customers with the quickest delivery possible of our high-quality services."

    Cole Attaway

    CEO, Spike Electric Controls

    "Spike solutions result in reduced unplanned downtime, less overtime, and greater operational efficiencies."

    Robert Hodson

    President, Spike Electric Controls

    The highest quality at the quickest speed.

    Spike can deliver the same name-brand electrical gear in a fraction of the time.