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Embarking on an electrical project requires a careful selection of components. One such critical component is the bussed low voltage cable tap box. Selecting the right cable tap box ensures optimal power distribution, system reliability, and safety. This blog post will guide you through key considerations when choosing the perfect bussed cable tap box for your project.

Understanding Bussed Cable Tap Boxes

Bussed cable tap boxes are key components in power distribution systems. They serve as connection points, helping to manage and distribute electricity from a power source to various devices or circuits.

Key Specifications of Our Bussed Cable Tap Boxes

At Spike Electric Controls, our bussed cable tap boxes come with the following specifications:

  • Voltage range: 600V to 1000V DC
  • Current rating: 600 Amps – 6000 Amps

These specifications ensure our products can accommodate various power distribution systems, whether small residential or large-scale commercial projects.

Informing Us about Your Cable Needs

To help you choose the right cable tap box for your project, we need some specific information from you:

  1. The total number of cables that will be connected to the box
  2. The size (diameter) of each cable

With this information, we can accurately determine the optimal box size for your project. This will ensure the efficiency of power distribution and prolong the lifespan of your electrical system by reducing potential overheating issues.

Understanding NEMA Ratings

The enclosures of our cable tap boxes are designed to meet various National Electrical Manufacturers Association (NEMA) standards. These standards determine the level of protection an enclosure offers against elements like dust, water, and corrosion. Below are the NEMA ratings of our products:

  • NEMA 1: Suitable for general-purpose indoor applications, protecting against dust, light, and direct contact with live parts.
  • NEMA 4: Offers protection against windblown dust and rain, hose-directed water, and damage from external ice formation. Suitable for indoor and outdoor use.
  • NEMA 3R: Ideal for outdoor use, it protects against falling rain and ice formation, but it doesn’t offer full protection against dust and particulates.
  • NEMA 12: Designed for indoor use, offering protection against dust, falling dirt, and non-corrosive liquid drips.
  • NEMA 4X Stainless Steel (304 and 316SS): The ultimate in protection. These enclosures are designed for both indoor and outdoor use, providing superior resistance to corrosion, windblown dust, rain, splashing water, and ice formation. The main difference between 304 and 316 stainless steel is that 316 contains molybdenum, making it more resistant to corrosion.

These varying NEMA ratings allow us to provide you with an enclosure that best fits your specific environmental and application needs.

Selecting the Right Bussed Cable Tap Box with Spike Electric Controls

When choosing the right bussed cable tap box for your project, consider the environment where it will be installed, the number of cables to be connected, and the size of those cables. With our range of NEMA-rated enclosures and high-quality products, you can trust Spike Electric Controls to provide you with the optimal solution for your power distribution needs.

For more detailed information about our bussed cable tap boxes, their benefits, and how they can enhance your electrical project, visit our product page here.


Choosing the right bussed cable tap box is a crucial step in your electrical project. It’s not just about picking any box; it’s about selecting a box that fits your unique needs. By providing us with detailed information about your cables and understanding the different NEMA ratings, you can make an informed decision that optimizes the performance of your electrical system and ensures its longevity. Spike Electric Controls is here to assist you every step of the way.

Written by: Cole Attaway

Cole Attaway is the founder and CEO of Spike Electric Controls. Spike's mission is to improve the accessibility and delivery of industrial electrical gear for clients nationwide. Spike solutions result in reduced unplanned downtime, less overtime, and greater operational efficiencies.

The highest quality at the quickest speed.

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