How To Install Battery Cable Repair Splices

Quickly and conveniently repair cable harnesses with battery cable repair splices. Instead of replacing the entire harness, simply replace the damaged or corroded battery terminals. Plus, even with the repair splice, you’ll still have an OEM style fit!

The inside of a solenoid with labels

What Is A Solenoid?

Overview Often times when working on high amperage applications a solenoid is incorporated into the wiring system. This is due to their ability to control a large output of power with very little power input. But, what is a solenoid? Some would call them “relay switches”, but really they are just giant relays – not switches […]

Understanding Relay Wiring: A Step-by-Step Guide

Relays are essential components in electrical systems, but understanding how they work can feel overwhelming. With this simple guide, we’ll break down the basics of relay wiring using a helpful diagram to explain how they function, the role of their pins, and how to connect them to your setup. Understanding Relay Wiring: A Step-by-Step Guide […]

New Product Announcement: Triplex and Quadplex Brake Cable

Triplex and Quadplex brake cable is now available at Del City. This complementary product to our existing offering has the same properties as our Duplex brake cable and features either three-conductor or four-conductor, PVC jacketed primary wires, laid in parallel. Primarily used for electric brake systems on trucks, buses, and trailers, adding more conductor options […]

Choosing the Right Electrical Wire for Your Install

So much of our world runs on electricity. What would we do without it? The types of electrical wire vary based on what the end application is. In our world at Del City, it’s all about automotive electrical wire. However, there are many types of electrical wire that fall into the realm of automotive electrical […]

Various relays at Del City

What Does A Resistor Do And Why Is It Important?

Whether you are fixing your air conditioning, connecting new LED lights, or wiring a relay, you are probably working with a resistor. Resistors can be found in almost every electrical circuit, but they are often built-in to other components. So what do these hidden resistors really do? And why are they so important to the […]

Group of toggle switches

Single Pole vs. Double Pole Switches: What’s the Difference?

When working with 12V electrical systems—whether in a custom car build, an off-grid solar project, or an industrial control panel—choosing the right switch is more than just picking something that looks good on the dash. Two of the most common types you’ll run into are single pole and double pole switches. Understanding the difference can […]

What Is Primary Wire?

What is primary wire after all? Often times when working on electrical builds, you’ll hear “primary wire” or “GPT wire” thrown around quite a bit. So, why is that?i Primary wire is one of the most common types of wire to use in electrical builds – specifically in automotive or DC applications.

Self-Cutting Cable Ties

Sometimes a cable tie is more than just a cable tie.  We are so excited to introduce a brand new innovation in cable ties – the Self-Cutting Cable Tie.  Traditional ties require the use of a cutting tool to remove the excess material after installation, usually leaving a jagged edge that can cut hands or […]