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Your Direct Connection for 12V Electrical Industry Expertise.

On the Del City Blog you will find answers and information such as how-to’s, product knowledge, industry news, and more! At Del City, we know how important it is to not just have your supplies, but also to have industry resources.

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Recent Posts

Basic 12V Wiring Diagram Components and Symbols

Basic 12V Wiring Diagram Components and Symbols

April 28, 2026
Every wiring diagram—no matter how simple or complex—is built from a few core elements. Understanding these categories makes it much...
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What are Electrical Wiring Diagrams

April 24, 2026
Electrical wiring diagrams are the universal language of electrical systems. Whether you're working on a vehicle, boat, trailer, piece of...
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Relay vs. Solenoid: What’s the Difference and When to Use Each

Relay vs. Solenoid: What’s the Difference and When to Use Each

April 15, 2026
Relays and solenoids both use electromagnetic coils to control electrical flow—but that’s where the similarities end. Each is designed for...
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Solid State vs. Mechanical Relays: A Comprehensive Comparison

Solid State vs. Mechanical Relays: A Comprehensive Comparison

March 19, 2026
Relays are fundamental components in electrical systems, allowing a low-power control signal to safely switch higher-power circuits. From automotive wiring...
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12V Wiring Fundamentals Pt. 2

12V Wiring Fundamentals Pt. 2

March 2, 2026
12V Circuit Protection for Automotive & Trailer Applications  Once your wiring fundamentals are in place from Pt 1, the next...
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12V Wiring Fundamentals Part 1

12V Wiring Fundamentals Part 1

March 2, 2026 1 Reply
Automotive, trailer, and specialty vehicle wiring operates in some of the harshest electrical environments. Unlike stationary systems, vehicle wiring is constantly exposed...
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DC Wire Color Codes Across Industries: A Practical Guide

DC Wire Color Codes Across Industries: A Practical Guide

February 20, 2026
Wire color isn’t cosmetic — it’s a functional visual language that communicates exactly what each conductor is meant to do....
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Choosing the Correct Wire Terminal For Secure Electrical Connections 

Choosing the Correct Wire Terminal For Secure Electrical Connections 

February 11, 2026
Ensuring dependability, safety, and long-term performance are more important aspects of a secure electrical connection than simply connecting wires. The...
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Choosing the Right Heat Shrink: Fix Wiring Problems with Ease

Choosing the Right Heat Shrink: Fix Wiring Problems with Ease

January 23, 2026 1 Reply
Wiring problems can cause expensive downtime, safety risks, and annoying repairs when working with electricity in cars, boats, factories, or...
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