Relays are fundamental components in electrical systems, allowing a low-power control signal to safely switch higher-power circuits. From automotive wiring and industrial automation to commercial equipment and DIY electronics, relays provide a reliable way to control power without running heavy current through sensitive switches or control modules. While the end function of most relays is the same—controlling […]
12V Circuit Protection for Automotive & Trailer Applications Once your wiring fundamentals are in place from Pt 1, the next step is protecting your system from electrical and mechanical hazards. Proper 12V circuit protection, mechanical safeguards, and thoughtful design are essential to prevent overloads, short circuits, abrasion, moisture damage, and heat-related failures. This guide covers […]
Automotive, trailer, and specialty vehicle wiring operates in some of the harshest electrical environments. Unlike stationary systems, vehicle wiring is constantly exposed to vibration, temperature extremes, moisture, road spray, chemicals, and abrasion. Getting the basics right is critical — from selecting the right wire to creating secure terminations and establishing reliable grounds. In this guide, we cover the fundamental principles every […]
Wire color isn’t cosmetic — it’s a functional visual language that communicates exactly what each conductor is meant to do. Across automotive, trailer, solar, industrial, and equipment-based electrical systems, standardized wire colors improve safety, reduce installation errors, and make long-term maintenance far more efficient. When used consistently, these color conventions help technicians quickly identify circuit […]
Ensuring dependability, safety, and long-term performance are more important aspects of a secure electrical connection than simply connecting wires. The proper wire terminal keeps circuits stable and avoids risks like shorts, loose connections, or system failures, whether you’re working on automotive, marine, industrial, or do-it-yourself applications. Seven of the most popular terminal types are broken down below, along […]
Wiring problems can cause expensive downtime, safety risks, and annoying repairs when working with electricity in cars, boats, factories, or homes. Heat shrink tubing isn’t just a nice touch; it fixes problems. Let’s look at some common problems and how the right heat shrink can help. Why use Heat Shrink? Heat shrink tubing is made […]
Electrical connections are the backbone of any reliable system, and safety starts with a proper crimp. A poor crimp can lead to voltage drops, overheating, or even system failure. That’s why UL-rated crimps are the gold standard. They ensure your connections meet rigorous safety and performance requirements. In this guide, we’ll walk through how to create a proper UL-rated crimp […]
Choosing the right ratcheting crimp tool can make all the difference in electrical, automotive, and industrial wiring projects. Ratcheting crimpers deliver consistent, secure crimps thanks to a mechanical ratcheting mechanism that only releases once a full crimp is achieved, preventing under-crimping or over-crimping and improving connection reliability on every job. In this comparison, we’ll break […]
Ever had a battery fail because of corrosion or exposure? A simple battery box can prevent costly damage and keep your power system safe. Del City offers a range of battery boxes and mounting solutions designed to keep your battery secure and protected in any environment including boats, RVs, and utility vehicles. Battery boxes from […]
Understanding Terminal Insulation Types: A Cross-Connector Comparison When selecting the different types of electrical connectors or terminals, choosing the right insulation type is just as important as selecting the right connector style. From butt connectors to push-on terminals and ring terminals, Del City offers a wide range of insulation options tailored to different environments and […]